Classification Characteristics Usage Austenite 301 Has lower Cr, Ni content than 304 steel. Its tensile strength increases with cold drawing. It is non-magnetic and acquires magnetism after cold drawing. Trains, aircraft, belt conveyors, vehicles, bolts, spring 301L 301 steel is created by lowering the C content in 301 steel and by improving grain boundary corrosion resistance of the welding part. Strength deterioration due to reduced C content is reinforced by adding N. Train frames, building exterior material 303 Good free-cutting property by adding S and excellent anti-quenchability. Shafts for electric appliances, OA products, bolts and nuts 304 Most widely used steel type. Good corrosion resistance, thermal resistance, low-temperature strength and mechanical properties. Good drawability such as Deep Drawing, Bending and does not harden during heat treatment. (non-magnetic, usable temperature:-196~800°C) Hollow and flat ware, sinks, interior piping, hot-water boilers, bath tubs, boilers, automobile parts (wiper, muffler, molding), medical instruments, building materials, facilities in…

EN 10217-7 2005 is for “Welded steel tubes for pressure purposes – Technical delivery conditions”. It covers a number of austenitic and duplex stainless steel. The mechanical properties are summarised in the table below. This article is not a substitute for the full standard. Steel grade Proof strength min MPA Tensile strengthMPa Elongation A min % Resistance to intergranular corrosion Steel name Steel number Rp0.2 Rp1.0 Rm long trans Austenitic X2CrNi18-9 1.4307 180 215 470/670 40 35 Yes X2CrNi19-11 1.4306 180 215 460/680 40 35 Yes X2CrNiN18-10 1.4311 270 305 550/760 35 30 Yes X5CrNi18-10  1.4301 195 230 500/700 40 35 Yes* X6CrNiTi18-10 1.4541 200 235 500/730 35 30 Yes X6CrNiNb18-10 1.4550 205 240 510/740 35 30 Yes X2CrNiMo17-12-2 1.4404 190 225 490/690 40 30 Yes X5CrNiMo17-12-2 1.4401 205 240 510/710 40 30 Yes* XCrNiMoTi17-12-2 1.4571 210 245 500/730 35 30 Yes X2CrNiMo17-12-3 1.4432 190 225 490/690 40 30 Yes X2CrNiMoN17-13-3 1.4429 295 330 580/800 35 30 Yes…

Welding austenitic stainless steel to carbon and other low alloy steel are established methods in the process and construction industries. Dissimilar metal welds involving stainless steel can be done using most full fusion weld methods, including TIG (Tungsten Inert Gas) and MIG (Metal Inert Gas). Weld procedures using filler (consumable) enable better control of joint corrosion resistance and mechanical properties. In selecting the weld filler, the joint is considered as being stainless, rather than the carbon steel. Over-alloyed fillers are used to avoid dilution of the alloying elements in the fusion zone of the parent stainless steel.Dissimilar metal combinations The most common combinations of dissimilar steel involving stainless steel are plain carbon or low alloy structural grades and austenitic stainless steel grades such as 1.4301 (304) or 1.4401 (316).Welding conditions Carbon steel and alloy steel containing less than 0.20%C do not normally need any preheat when being welded to austenitic stainless steel. Carbon and alloy steels with carbon levels over 0.20% may require…

Cold Forming – Blanking and Piercing | Press Breaking and Roll Forming | Spinning and Flow Forming | Coining and Embossing | Press Forming | Deep Drawing Cutting – Sawing | Hand Hacksawing | Shearing | Abrasive Cutting | Thermal Cutting Hot Rolling – Hot Rolling Process | Hot Rolling Application | Types of Hot Rolling Mill | Hot Rolled Steel Tube | History Cold Rolling – Physical metallurgy | Degree of cold work | Cold Rolling Stainless Steel | Manufacturing Process Foil rolling | Rolling Mill | Steel Mill | Production methods | Recycling of Steel | Modern Steelmaking | Contemporary Steel Why Thin Wall Thickness Tubes Difficult To Production Formability of Stainless Steel and Performance Evaluation Drawing Drawn Drawing and Spinning Stainless Steel Cold Drawn Stainless Steel Pipe Production Bend Testing Bending Stainless Steel Brazing Stainless Steel Welding Stainless Steel Filler Metals For Welding Stainless Steel 308L 309L 316L 347 Filler Metal Introduction Processes for Welding Stainless Steel Avoid PWHT Post Weld Heat Treatment Welding Process and Letter Designations Welding Properties of Stainless Steel Welding Stainless Steel to other Steel Welding and Post Fabrication Cleaning for Construction and Architectural Application Welded Stainless Steel Pipe Post weld cleaning and finishing of…

Many pepole are thinking: sometimes we call pipes, sometimes we call them tubes. Both of them are with the same shape. And we are confused what’s pipe and what’s tube . More often than not, people guess it has something to do with the quality of the materials, but that’s got nothing to do with it. The difference between a pipe and a tube is how they are measured, and ultimately what they are used for. A pipe is a vessel – a tube is structural. A pipe is measured ID (Inside Diameter) – a tube is measured OD (Outside Diameter). How they are measured… Pipes are measured ID (inside diameter) or OD( outside diameter). Tubes are measured OD ( outside diameter) because they are structural. Pipes have a consistent ID regardless of wall thickness. In other words, a 1/2″ high pressure pipe may need a 2″ thick wall, but…

DIN 17459 specifies technical delivery conditions for seamless circular tubes made from high temperature austenitic stainless steel as specified in table. 1. Such stainless steel tube are intended primarily to be used in high-pressure applications where elevated temperature and high mechanical stresses are involved (e.g. in the construction of pressure boilers, pressure vessels, pipelines, and in the chemical industry). Material Chemical composition (%) degignation number C Si Mn P S Ni Cr Mo Ni others X 6 CrNi 18 11 1.4948 0.04 to 0.08 ≤0.75 ≤2.0 0.035 0.015 17.0 to 19.0 – 10.0 to 12.0   X 3 CrNiN 18 11 1.4949 ≤0.04 ≤0.75 ≤2.0 0.035 0.015 0.10 to 0.18 17.0 to 19.0 0.50 to 0.60 9.5 to 11.5   X 8 CrNiTi 18 10 1.4941 0.04 to 0.10 ≤0.75 ≤2.0 0.035 0.015 17.0 to 18.5 – 9.5 to 11.5 Ti: ≥5 x %Cto ≤  0.80B: 0.0015 to 0.0050 X6CrNiMo 17 13 1.4919 0.04 to 0.08 ≤0.75 ≤2.0 0.035…

Stainless steel structure welding and cutting is inevitable applications in stainless steel. Because the characteristics of stainless steel itself has, in comparison with carbon steel welding and cutting of stainless steel has its own particularity, and more in its heat affected zone of welded joints (HAZ) produce a variety of defects. Special attention when welding stainless steel physical properties. For example austenitic stainless steel is a low coefficient of thermal expansion and high-chromium stainless steel is 1.5 times; thermal conductivity of low carbon steel is about 1 / 3, and the high thermal conductivity of chromium stainless steel of low carbon steel is about 1 / 2 ; specific resistance is 4 times more low-carbon steel, and high chromium stainless steel is low carbon steel 3 times. These conditions coupled with the metal density, surface tension, magnetic and other conditions have an impact on the welding conditions. Martensitic stainless steel generally represented 13% Cr steel. It is the welding, the heat…

The table shown is based on the reference data presented in EN 10088-1. Only a sample of the information available is shown. This is intended to show the scope of information available through representative figures for the most commonly used stainless steel tube types. A separate table indicates some of the grades that have been grouped together.Physical Properties Table Steel Types (AISI) Density Modulus Expansion Conductivity Specific Heat Resistivity . . 20C 400C . . . . Ferritic stainless steels 410S 7700 220 195 10.5 30 460 0.60 430 7700 220 195 10.0 25 460 0.70 444 7700 220 195 10.4 23 430 0.8 Martensitic and precipitation hardening stainless steels 410 7700 215 190 10.5 30 460 0.60 440 7700 215 190 10.4 15 430 0.8 630 7800 200 170 10.9 16 500 0.71 Austenitic stainless steel 304 7900 200 172 16.0 15 500 0.73 316 8000 200 172 16.0 15 500 0.75 ‘6%Mo’ 8000…

Stainless steel have good strength and good resistance to corrosion and oxidation at elevated temperatures. Stainless steel are used at temperatures up to 1700° F for 304 and 316 and up to 2000 F for the high temperature stainless grade 309(S) and up to 2100° F for 310(S). Stainless steel is used extensively in heat exchanger, super-heaters, boiler, feed water heaters, valves and main steam lines as well as aircraft and aerospace applications. Figure 1 gives a broad concept of the hot strength advantages of stainless steel in comparison to low carbon unalloyed steel. Table 1 shows the short term tensile strength and yield strength vs temperature. Table 2 shows the generally accepted temperatures for both intermittent and continuous service. With time and temperature, changes in metallurgical structure can be expected with any metal. In stainless steel, the changes can be softening, carbide precipitation, or embrittlement. Softening or loss of strength occurs in the 300 series (304, 316, etc.) stainless steel…

Shell and tube heat exchanger consist of a series of stainless steel tube. One set of these tubes contains the fluid that must be either heated or cooled. The second fluid runs over the tubes that are being heated or cooled so that it can either provide the heat or absorb the heat required. A set of tubes is called the tube bundle and can be made up of several types of tubes: plain, longitudinally finned, etc. Shell and Tube heat exchangers are typically used for high pressure applications (with pressures greater than 30 bar and temperatures greater than 260°C. This is because the shell and tube heat exchangers are robust due to their shape. There are several thermal design features that are to be taken into account when designing the tubes in the shell and tube heat exchanger. These include: Tube diameter: Using a small tube diameter makes the heat exchanger both…

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ASTM A595 Standard Specification for Steel Tubes, Low-Carbon or High-Strength Low-Alloy, Tapered for Structural Use covers three grades of seam-welded, round, tapered steel tubes for structural use. Grades A and B are of low-carbon steel or high-strength low-alloy steel composition and Grade C is of weather-resistance steel composition. The tube steel shall be hot-rolled aluminum-semikilled or fine-grained killed sheet or plate manufactured by one or more of the following processes: open-hearth, basic-oxygen, or electric-furnace. The tubes shall be made from trapezoidal sheet or plate that is preformed and then seam welded. They shall be brought to final size and properties by roll compressing cold on a hardened mandrel. A tensile test shall be done to determine the yield strength and the ultimate tensile strength of the tubes. 1.1 This specification covers three grades of seam-welded, round, tapered steel tubes for structural use. Grades A and B are of low-carbon steel or high-strength low-alloy steel composition and Grade C…

Foshan scrap stainless steel market price (yuan/ton) Change Broken stainless steel pipe (Ni7.4-7.6%) 11150-11350 -100 Stainless steel back Burden (Ni7.0-7.2%) 10150-10350 -100 304 Edge of domestic materials (Ni7.6-7.8%) 11500-11700 -100 316 Back to the Burden (Ni12%) 17100-17300 -100 201 Back to the Burden (Ni5%) 5350-5550 -50 430 Back to the Burden (Cr18%) 4100-4300 0 Shanghai Huadong Stainless steel tube scrap market price (yuan / ton) 　 304 Edge of domestic materials (Ni7.6-7.8%) 11850-12050 -100 316 Back to the Burden (Ni12%) 17300-17500 -100 USD1=RMB 7.31yuan Pipes Tubes Plates Bars Square Tubes Weight Calculation CalculatorConversion Calculator Calculation-Pressure|Weight|Temperature|Volume|LengthPipe Working Pressure CalculationMetals Weight Calculator Calculation Nomura Lowers 2010 Copper Price Forecast, Raises Gold, Nickel, Palladium Nickel base alloy | Special alloy steel Nickel futures up on spot demand, overseas trend November 3 Jinchuan cut the ex-factory price of Nickel BSEN ASTM British and American standards for tolerances, surface finish and testing of stainless steels Selection of…

Internal Pressure Calculation Results: ASME Code, Section VIII, Division 1, 2004 A-06 Elliptical Head From 10 To 20 SA-240 304 at 400 C Thickness Due to Internal Pressure [Tr]:= (P*(D+2*CA)*K)/(2*S*E-0.2*P) Appendix 1-4(c)= (35000.000*(58.0000+2*0.0000)*1.00)/(2*106.79*1.00-0.2*35000.000)= 9.8271 + 0.0000 = 9.8271 mm. Max. All. Working Pressure at Given Thickness [MAWP]:= (2*S*E*(T-Ca))/(K*(D+2*Ca)+0.2*(T-Ca)) per Appendix 1-4 (c)= (2*106.79*1.00*(12.0000))/(1.00*(58.0000+2*0.0000)+0.2*(12.0000))= 42431.543 KPa. Maximum Allowable Pressure, New and Cold [MAPNC]:= (2*Sa*E*T)/(K*D+0.2*T) per Appendix 1-4 (c)= (2*137.90*1.00*12.0000)/(1.00*58.0000+0.2*12.0000)= 54791.520 KPa. Actual stress at given pressure and thickness [Sact]: = (P*(K*(D+2*CA)+0.2*(T-CA)))/(2*E*(T-CA))= (35000.000*(1.00*(58.0000+2*0.0000)+0.2*(12.0000)))/(2*1.00*(12.0000))= 88.088 N./mm? Required Thickness of Straight Flange = 11.832 mm. Percent Elongation per UHA-44  (75*tnom/Rf)*(1-Rf/Ro)  75.630 % Cylindrical Shell From 20 To 30 SA-240 304 at 400 C Thickness Due to Internal Pressure [Tr]:= (P*(D/2+Ca))/(S*E-0.6*P) per UG-27 (c)(1)= (35000.000*(58.0000/2+0.0000))/(106.79*1.00-0.6*35000.000)= 11.8318 + 0.0000 = 11.8318 mm. Max. All. Working Pressure at Given Thickness [MAWP]:= (S*E*(T-Ca))/((D/2+Ca)+0.6*(T-Ca)) per UG-27 (c)(1)= (106.79*1.00*(12.0000))/((58.0000/2+0.0000)+0.6*12.0000)= 35398.691 KPa. Maximum Allowable Pressure, New and Cold [MAPNC]:= (SA*E*T)/(D/2+0.6*T) per UG-27 (c)(1)= (137.90*1.00*12.0000)/(58.0000/2+0.6*12.0000)= 45710.055 KPa. Actual stress at given pressure and…

ASTM A790 covers seamless and straight-seam welded ferritic/austenitic duplex stainless steel pipe for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. The pipe shall be made by the seamless or an automatic welding process, with no addition of filler metal in the welding operation. Heat analysis shall be made to determine the percentages of the elements specified. Tension tests, hardening tests, flattening tests, hydrostatic test and nondestructive electric tests shall be made to conform to the specified requirements. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. This specification covers seamless and straight-seam welded ferritic/ austenitic stainless steel pip intended for general corrosive service, with particular emphasis on resistance to stress corrosion cracking. These steel are susceptible to embrittlement if used for prolonged periods at elevated temperatures. Optional supplementary requirements…

DSTU B A.3.2-12:2009 SSBP. Ventilation systems. Zagalni vimogi DSTU GOST 166:2009 (ISO 3599-76) Calipers. Technical specifications ( GOST 166-89 (ISO 3599-76), IDT) DSTU EN 473:2012 Non-invasive control. Qualification and certification of personnel. General provisions ( EN 473 :2008, IDT) DSTU 2680-94 Seamless rolled pipes made of steel and alloys. Terminology and identification of surface defects DSTU 2841-94 ( GOST 27809-95 ) Chavun i steel. Methods of spectrographic analysis DSTU 3124-95 Pipes made of steel and alloy. Bind and preparation of samples for the chemical warehouse. Basic provisions DSTU 4179-2003 Metal vibrating tapes. Technical skills ( GOST 7502-98 , MOD) DSTU GOST 6507:2009 Micrometers. Specifications DSTU 7238:2011 Safety standards system. Create a collective zakhist for the working people. Zagalni vimogi ta classification DSTU 7239:2011 Safety standards system. Assign an individual zakhist. Zagalni vimogi ta classification DSTU ISO 7438:2005 Metal materials. Testing for zgin (ISO 7438:1985, IDT) DSTU ISO 8496-2002 Metal materials. Trumpet. Testing for pulling out the rings with two parallel rods (ISO 8496:1988, IDT) DSTU GOST 12344:2005 Alloyed and high-alloyed steel. Methods for designing vugletsiu ( GOST 12344-2003 ,…

Inspection of the outer surface of pipes is carried out visually without the use of magnifying means. The internal surface of pipes with an internal diameter of 70 mm or more is inspected using a periscope or videoscopic systems. It is allowed to inspect the inner surface of pipes without the use of instruments, using lighting devices at both ends of the pipe against the light. For pipes with an internal diameter of less than 70 mm, as well as pipes with an internal diameter of 70 mm or more that have not been inspected by a periscope, the manufacturer guarantees that the internal surface of the pipes meets the requirements of these specifications based on satisfactory results of 100% ultrasonic inspection. The classification of defects is carried out in accordance with DSTU 2680 (OST 14-82 [ 18 ]). The depth of defects is checked after filing and subsequent measurement. The wall…

What is MW and What is AW? MW is minimum wall thickness (min). Wall Thickness Tolerance in (-0, +20%) for OD 1-1/2″ [38.1mm] and under, in (-0, +22%) for OD over 1-1/2″ [38.1mm]. AW is Average Wall Thickness (avg). Wall Thickness Tolerance in (-10%, +10%) for OD 1-1/2″ [38.1mm] and under, in (-11%, +11%) for OD over 1-1/2″ [38.1mm]. According to ASME SA213 Permissible Variations from the Specified Wall Thickness: 13.1 Permissible variations from the specified minimum wall thickness shall be in accordance with Specification A1016/A1016M.13.2 Permissible variations from the specified average wall thickness shall be +/-10 % of the specified average wall thickness for cold formed tubes and, unless otherwise specified by the purchaser.

TP321 TP321H stainless steel is basically from 304 stainless steel. They different by a very very small addition of Titanium. The real difference is their carbon content. The higher the carbon content the greater the yield strength. 321 stainless steel has advantages in a high temperature environment due to its excellent mechanical properties. Compared with 304 alloy, 321 stainless steel has better ductility and resistance to stress fracture. In addition, 304L can also be used for anti-sensitization and intergranular corrosion. Grade TP304L is more readily available in most product forms, and so is generally used in preference to 321 if the requirement is simply for resistance to intergranular corrosion after welding. However 304L Stainless Steel Tubes has lower hot strength than 321 stainless steel tube and so is not the best choice if the requirement is resistance to an operating environment over about 500°C. However, 321 is a much better…

What are the main factors that affect the price of stainless steel tubes? We analyze from the production process, inspection requirements, raw materials and other factors. 1. Production process. Due to the higher production cost of bright annealing, the price of bright annealed tubes will be higher than that of pickling annealed tubes. Because the heat treatment speed of the bright annealing furnace is slow, the number of stainless steel tubes passing through each time is smaller, and additional electricity and ammonia will be consumed. Since there are more production passes for small-diameter steel tubes, the price of small-diameter stainless steel tubes will be higher than that of large-diameter stainless steel pipes. In addition, polishing stainless steel tubing and U bend tube will also incur additional costs. 2. Inspection requirements According to ASME SA213 requirements, Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The…

904L stainless steel main components: 20Cr-24Ni-4.3Mo-1.5Cu Grade – C Mn Si P S Cr Mo Ni Cu N ASTM A213N08904 904L min. max. – 0.020 – 2.00 – 1.00 – 0.040 – 0.030 19.0 23.0 4.0 5.0 23.028.0 1.02.0 –0.10 EN 10216-5 1.4539 min. max. – 0.020 – 2.00 – 0.70 – 0.030 – 0.010 19.0 21.0 4.0 5.0 24.026.0 1.22.0 –0.15 904L N08904 stainless steel is a low-carbon, high-alloyed austenitic stainless steel designed for environments with harsh corrosion conditions. It has better corrosion resistance than 316L and 317L, and at the same time, it takes into account both price and performance, and is extremely cost-effective . Because of the addition of 1.5% copper, it has very good corrosion resistance for reducing acids such as sulfuric acid and phosphoric acid. 904L super austenitic stainless steel also has excellent corrosion resistance to stress corrosion, pitting corrosion and crevice corrosion caused by chloride…

According to Harmonized Tariff Schedule of the United States, (HTSUS)， Chapter 73. HS Code Description Tariff 7304 4130 Cold Drawn Stainless Steel Tubes and Pipe, Hollow Profiles, SeamlessOD less than 19mm. 36% 7304 4160 OD larger than 19mm 36% 7304 4900 Stainless Steel Hollow Bar 36%

In the field of stainless steel, usually 304 is called TP304, 304L is called 304L, 316L is called TP316L. For example: ASTM A312 TP304, ASME SA213 TP304L, ASME SA213 TP316L. So what does “TP” mean? TP stands for Type. The reason is AISI(American Iron and Steel Institute) Classifies Stainless Steel in Type. For the same reason, sometimes 304, 304, L316L, will be called AISI 304, AISI 304L, AISI 316L.

OD: 17.15 – 508mm (3/8 INCH to 20 INCH)WT: 0.5 – 60 mm, Schedule 10s, 20, 40s, 40, 60, 80s, 80, 100, 120, 140, 160, XXH.Production Capacity: 500 MT/Month Guanyu Tube is specialized manufacturer of ASTM A312 TP304, ASTM A312 TP304L, ASTM A312 TP316, ASTM A312 TP316L, ASTM A312 TP321, ASTM A312 TP310S, ASTM A312 TP304 TP304L TP304H TP316 TP316L TP317L TP321 TP316Ti TP347 TP347H TP310S TP309S Stainless Steel Pipe Supplier. This is issued under the fixed designation ASTM A312; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon indicates an editorial change since the last revision or reapproval. This covers seamless, straight-seam and heavily cold worked welded austenitic stainless steel pipe for high-temperature and general corrosive service. When the impact test criterion for a low-temperature service would be…

According to ASME B36.10 and ASME B 36.19. The weight result base on Calculate of “Weight= 0.02507×T (D – T )”. ASTM A312 TP316L Schdule | ASTM A312 TP316L Weight | ASTM A312 TP316 Size NPS DN ODinch ODmm SCH5Smm SCH10Smm SCH10mm SCH20mm SCH30mm STDmm SCH40Smm SCH40mm SCH60mm XSmm SCH80Smm SCH80mm SCH100mm SCH120mm SCH140mm SCH160mm XXSmm   1/8 6 0.405 10.3 　 1.24 1.24 　 1.45 1.73 1.73 1.73 　 2.41 2.41 2.41 　 　 　 　 　 kgs/m 　 　 　 　 0.282 0.282   0.322 0.372 0.372 0.372   0.477 0.477 0.477 　 　 　 　 　   1/4 8 0.540 13.7 　 1.65 1.65 　 1.85 2.24 2.24 2.24 　 3.02 3.02 3.02 　 　 　 　 　 kgs/m 　 　 　 　 0.498 0.498   0.550 0.644 0.644 0.644   0.809 0.809 0.809 　 　 　 　 　   3/8 10 0.675 17.1 　 1.65 1.65…

According to ASME B36.10 and ASME B 36.19. The weight result base on Calculate of “Weight= 0.02491 ×T (D – T )”. ASTM A312 TP304 Schdule | ASTM A312 TP304 Weight | ASTM A312 TP304 Size. ASTM A312 TP304 TP304L TP304H TP321 TP321H Stainless Steel Pipe Size and Weight NPS DN ODinch ODmm SCH5Smm SCH10Smm SCH10mm SCH20mm SCH30mm STDmm SCH40Smm SCH40mm SCH60mm XSmm SCH80Smm SCH80mm SCH100mm SCH120mm SCH140mm SCH160mm XXSmm   1/8 6 0.405 10.3 　 1.24 1.24 　 1.45 1.73 1.73 1.73 　 2.41 2.41 2.41 　 　 　 　 　 kgs/m 　 　 　 　 0.280 0.280   0.320 0.369 0.369 0.369   0.474 0.474 0.474 　 　 　 　 　   1/4 8 0.540 13.7 　 1.65 1.65 　 1.85 2.24 2.24 2.24 　 3.02 3.02 3.02 　 　 　 　 　 kgs/m 　 　 　 　 0.495 0.495   0.546 0.639 0.639 0.639   0.803 0.803…

ASTM A213 Tubing Working Pressure Rating OD inches Ave. Wall inches Min Yield Strength (PSI) Min Tensile Strength (PSI) Theoretical Burst Pressure * (PSI) Working Pressure (PSI) 25% of Burst Theoretical Yield Point ** (PSI) Collapse Pressure *** (PSI) 0.250 0.020 30,000 75,000 14,286 3,571 5,714 4,416 0.250 0.028 30,000 75,000 21,649 5,412 8,660 5,967 0.250 0.035 30,000 75,000 29,167 7,292 11,667 7,224 0.250 0.049 30,000 75,000 48,355 12,089 19,342 9,455 0.250 0.065 30,000 75,000 81,250 20,313 32,500 11,544 0.375 0.020 30,000 75,000 8,955 2,239 3,582 3,029 0.375 0.028 30,000 75,000 13,166 3,292 5,266 4,145 0.375 0.035 30,000 75,000 17,213 4,303 6,885 5,077 0.375 0.049 30,000 75,000 26,534 6,634 10,614 6,816 0.375 0.065 30,000 75,000 39,796 9,949 15,918 8,597 0.500 0.020 30,000 75,000 6,522 1,630 2,609 2,201 0.500 0.028 30,000 75,000 9,459 2,365 3,784 3,172 0.500 0.035 30,000 75,000 12,209 3,052 4,884 3,906 0.500 0.049 30,000 75,000 18,284 4,571 7,313…

Many pharmaceutical and biotech applications require that product-contact surfaces be electropolished. Therefore, the ability to provide a high-quality electropolished surface is an important material property. 2205 duplex stainless steel can be electropolished to a finish of 0.38 microns or better, a finish that meets or exceeds ASME BPE standard surface finish requirements for electropolished surfaces. Although 2205 duplex stainless steel can easily meet the surface finish requirements of the pharmaceutical and biotech industries, the electropolished 2205 stainless steel surface is not as bright as the electropolished 316L stainless steel surface. This difference is due to the slightly higher metal dissolution rate of the ferrite phase compared to the austenite phase during electropolishing. Surface | Polishing Tube | Tubes Roughness Review | Bright Annealing Tubes | China USA Roughness Standard | EDM | EDM Roughness Comparator | Post Weld Cleaning | Cleaning of Tubes | Cleaning methods | Roughness Conversion Chart | Tube Surface Finish Types | Care Maintenance Stainless Steel | British American Standards For Tolerances Surface Finish Testing | Surface Finish Notes | Surface Texture Parameters | Measuring Surface Finish | Surface Finish…

2205 Duplex Stainless Steel Machining characteristics The machining of 2205 duplex stainless steel is similar to that of 316L, but there are still some differences. Cold forming operations must take into account the higher strength and higher work hardening properties of duplex stainless steels. Forming equipment may require higher load capacities, and in forming operations, 2205 stainless steel will exhibit higher resilience than standard austenitic stainless steels. The higher strength of 2205 duplex stainless steel makes it more difficult to machine than 316L. The welding of 2205 duplex stainless steel can use the welding method of 316L stainless steel. However, heat input and interpass temperature must be tightly controlled to maintain the desired austenite-ferrite phase ratio and avoid precipitation of detrimental intermetallic phases. A small amount of nitrogen in the welding gas helps avoid these problems. When performing welding procedure qualification for duplex stainless steels, the commonly used method is…

Chemical Composition of ASTM A213 / ASME SA 213 317 317L 317LM 317LMN Stainless Steel Grade C Mn P Sulphur Si Cr Nickel Mo N Cu Weight % 317 S31700 18.00 11.00 3.00 Min.   0.08 2.00 0.045 0.030 1.00 20.00 15.00 4.00 Max. 317L S31703 18.00 11.00 3.00 Min. 0.035 2.00 0.045 0.030 1.00 20.00 15.00 4.00   Max. 317LM S31725 18.00 13.50 4.00   Min.   0.03 2.00 0.045 0.030 1.00 20.00 17.50 5.00 0.20 0.75 Max 317LMN S31726 17.00 13.50 4.00 0.10   Min. 0.03 2.00 0.045 0.030 1.00 20.00 17.50 5.00 0.20 0.75 Max. EN 10216-5 1.4439 16.50 12.50 4.00     Min. 0.030 2.00 0.040 0.015 1.00 18.50 14.50 5.00     Max. EN 10217-7 1.4438 17.50 13.00 3.00     Min. 0.030 2.00 0.045 0.030 1.00 19.50 16.00 4.00     Max. Mechanical Properties of 317 317L Stainless Steel Tubes       Tensile…

ASTM A213 347/347H / 347HFG Stainless Steel Tubes Chemical Composition Grade 347 347H 347HFG UNS Designation S34700 S34709 S34710 Carbon (C) Max. 0.08 0.04–0.10 0.06–0.10 Manganese (Mn) Max. 2.00 2.00 2.00 Phosphorous (P) Max. 0.04 0.04 0.04 Sulphur (S) Max. 0.03 0.03 0.03 Silicon (Si) Max. 0.75 0.75 0.75 Chromium (Cr) 17.0–20.0 17.0–20.0 17.0–20.0 Nickel (Ni) 9.0–13.0 9.0–13.0 9.0–13.0 Molybdenum (Mo) — — Nitrogen (N) — — — Iron (Fe) Bal. Bal. Bal. Other Elements Cb+Ta=10xC-1.0 Cb+Ta=8xC-1.0 Nb+Ta=8xC-1.0 347 347H 347HFG Stainless Steel Mechanical Properties Tensile Strength Tensile Strength Yield Strength Yield Strength Alloy UNS Spec MPa ksi MPa ksi Elongation in 2 inches (min.) % HarndessHBW 347 S34700 ASTMA213 515 75 205 30 35 192 347H S34709 ASME SA 213 515 75 205 30 35 192 347HFG S34710 — 550 80 205 30 35 192 347 347H 347HFG Stainless Steel Physical Properties Alloy UNSDesign Density kgs/dm³ Modulus of Elasticity(x106 psi) Mean…

ASME SA213 TP310S TP310H Chemical Composition Grade UNS Designation C Mn P S Si Cr Ni   S31002 0.02 max 2.0 max 0.020 max 0.015 max 0.15 max 24.0 – 26.0 19.0 – 22.0 310S S31008 0.08 max 2.0 max 0.045 max 0.030 max 1.00 max 24.0 – 26.0 19.0 – 22.0 310H S31009 0.04-0.10 2.0 max 0.045 max 0.030 max 1.00 max 24.0 – 26.0 19.0 – 22.0 TP310S TP310H Stainless Steel Mechanical Properties 1. 310S Stainless Steel Pipe Mechanical Properties at Room Temperature   TP310H TP310H TP310S TP310S   Typical  Minimum Typical  Minimum Tensile Strength, MPa 645 515 595 515 Yield Stress (0.2 % offset), MPa 355 205 295 205 Elongation (Percent in 50mm) 52 35 52 35 Hardness (Rockwell) – 90 HRB Max – 90 HRB Max 310S Stainless Steel Physical Properties Alloy UNS Spec. Density Specific Gravity g/cm³ Modulus of Elasticity (x106 psi) Mean Coefficient of…

ASME SA 213 TP 316 / TP 316L EN 10216-5 1.4401 1.4404 Chemical Composition  Grade TP316 TP 316L 1.4401 1.4404 UNS Designation S31600 S31603     Carbon (C) Max. 0.08 0.035 0.07 0.030 Manganese (Mn) Max. 2.00 2.00 2.00 2.00 Phosphorous (P) Max. 0.045 0.045 0.040 0.040 Sulphur (S) Max. 0.030 0.030 0.015 0.015 Silicon (Si) Max. 1.00 1.00 1.00 1.00 Chromium (Cr) 16.0 – 18.0 16.0 – 18.0 16.5 – 18.5 16.5 – 18.5 Nickel (Ni) 10.0 – 14.0 10.0 – 14.0 10.0 – 13.0 10.0 – 13.0 Molybdenum (Mo) 2.0 – 3.0 2.0 – 3.0 2.0 – 2.5 2.0 – 2.5 Nitrogen (N) Max. – – 0.015 0.015 Iron (Fe) Remainder Remainder Remainder Remainder Other Elements – – – – * Maximum carbon content of 0.04% acceptable for drawn tubes General Properties 316 316L Stainless Steel Tubes Related Links 316L Chemical Composition316L Resistance to Corrosion316L Physical Properties316L Mechanical Properties316L Oxidation…

Checmical Composition of ASME SA213 304 304L 304H and EN 10216-5 1.4301 1.4307 1.4948 Grade – C Mn Si P S Cr Mo Ni N 304/S30400 min.max. -0.08 -2.0 -1.00 -0.045 -0.030 18.0-20.0 – 8.0-11.0 – EN 10216-5 1.4301 min.max. -0.07 -2.0 -1.00 -0.040 -0.015 17.00-19.5 – 8.0-10.5 -0.11 304L/S30403 min.max. -0.035 -2.0 -1.00 -0.045 -0.030 18.0-20.0 – 8.0-12.0 – EN 10216-5 1.4307 min.max. -0.030 -2.0 -1.00 -0.040 -0.015 17.5-19.5 – 8.0-10.0 -0.11 304H /S30409 min.max. 0.04-0.10 -2.0 -1.00 -0.045 -0.030 18.0-20.0 – 8.0-11.0 – EN 10216-5 1.4948 min.max. 0.04-0.08 -2.0 -1.00 -0.035 -0.015 17.0-19.0 – 8.0-11.0 -0.11 TP304L General PropertiesTP304L Chemical CompositionTP304L Resistance to CorrosionTP304L Physical PropertiesTP304L Mechanical PropertiesTP304L WeldingTP304L Heat TreatmentTP304L Cleaning304/304L/304LN/304H Tubing and Pipe304/304L Stainless Steel Tubing

We are specialized manufacturer of ASME SA249 ASTM A249 TP304, ASTM A249 TP304L, ASTM A249 TP304H, ASTM A249 TP316, ASTM A249 TP316L, ASTM A249 TP316H, ASTM A249 TP316Ti, ASTM A249 TP321 TP321H, ASTM A249 TP309H TP309S, ASTM A249 TP310S TP 310H, ASTM A249 TP347 Welded Tubes and ASTM A249 Welded Pipe. What is ASTM A249 ASME SA249? ASTM A249 is specifies standard specification for nomina wall thickness welded tubes and heavily cold worked welded tubes made from the austenitic steel with various grades intended for such use as a boiler, superheater, heat exchanger, or condenser tubes. Heat and product analysis shall conform to the requirements as to chemical composition for carbon, manganese, phosphorous, sulfur, silicon, chromium, nickel, molybdenum, nitrogen, copper, and others. All materials shall be furnished in the heat-treated condition in accordance with the required solution temperature and quenching method. ASTM A249 Tubing Test Items When the final heat treatment is in a continuous furnace, the number…

ASME SA 213 TP321 321H vs EN 10216-5 1.4541 Chemical Composition Grade 321 321H EN 10216-5 1.4541 UNS Designation S32100 S32109 Carbon (C) Max. 0.08 0.04–0.10 0.08 Manganese (Mn) Max. 2.00 2.00 2.00 Phosphorous (P) Max. 0.045 0.045 0.040 Sulphur (S) Max. 0.03 0.03 0.015 Silicon (Si) Max. 1.00 1.00 1.00 Chromium (Cr) 17.0–20.0 17.0–20.0 17.0-19.0 Nickel (Ni) 9.0–12.0 9.0–12.0 9.0–12.0 Molybdenum (Mo) — — Nitrogen (N) – – Iron (Fe) Bal. Bal. Bal. Other Elements Ti=5(C+N) to 0.70% Ti=4(C+N) to 0.70% Ti=5(C+N) to 0.70% General PropertiesChemical CompositionResistance to CorrosionPhysical PropertiesMechanical PropertiesHeat TreatmentFabricationElevated Temperature Oxidation ResistanceOxidation Behavior of Type 321 Stainless Steel Tube321 S32100 Chemical Composition Comparison Table Difference Between 321 and 347 Stainless Steel

ASTM A213 321 321H 347 347H Chemical Composition Grade 321 321H 347 347H UNS Designation S32100 S32109 S34700 S34709 Carbon (C) Max. 0.08 0.04–0.10 0.08 0.04-0.10 Manganese (Mn) Max. 2.00 2.00 2.00 2.00 Phosphorous (P) Max. 0.045 0.045 0.04 0.04 Sulphur (S) Max. 0.03 0.03 0.03 0.03 Silicon (Si) Max. 1.00 1.00 0.75 0.74 Chromium (Cr) 17.0–20.0 17.0–20.0 17.0–20.0 17.0–20.0 Nickel (Ni) 9.0–12.0 9.0–12.0 9.0–13.0 9.0–13.0 Molybdenum (Mo) – – – – Nitrogen (N) – – – – Iron (Fe) Bal. Bal. Bal. Bal. Other Elements Ti=5(C+N) to 0.70% Ti=4(C+N) to 0.70% Cb+Ta=10xC-1.0 Cb+Ta=10xC-1.0 A limitation with 321 is that titanium does not transfer well across a high temperature arc, so is not recommended as a welding consumable. In this case grade 347 is preferred – the niobium performs the same carbide stabilisation task but can be transferred across a welding arc. Grade 347 is therefore the standard consumable for welding 321. Grade…

Electroless nickel plating of stainless steel parts (drive shafts, meshing parts, moving parts, etc.) can improve the uniformity and self-lubricity of the plating, which is better than chromium plating. However, electroless nickel plating on stainless steel often results in unsatisfactory bonding between the plating layer and the substrate due to poor pretreatment, which has become an urgent problem in actual production. The original process: mechanical polishing→organic solvent degreasing→chemical degreasing→hot water washing→electrochemical degreasing→hot water washing→cold water washing→30%HCl→cold water washing→20%HCl(50℃)→cold water washing→flash plating Nickel → electroless nickel plating. Disadvantages of the original process: the effect of using HCL alone to remove the oxide scale is not good; the flash nickel plating of complicated shapes affects the uniformity of electroless nickel plating due to poor coverage; the longer process may cause the fresh surface of stainless steel to be re-oxidized. Film; flash nickel plating solution is easy to pollute chemical nickel plating solution,…

1. Difference in Chemical Composition: 316L is an ultra-low-carbon stainless steel, while 316 stainless steel is a low-carbon stainless steel, not an ultra-low-carbon stainless steel. Grade – C Mn Si P S Cr Mo Ni N TP316L min.max. -0.035 -2.0 -1.00 -0.045 -0.030 16.0-18.0 – 10.0-14.0 – 316 min.max. -0.08 -2.0 -1.00 -0.040 -0.030 16.0-18.0 – 10.0-14.0 – 2. Different in Yield Strength and Tensile Strength According to ASME SA213, for Tensile Strength, TP316L 485 min (N/MM2), 316 515 min (N/MM2). for Yield Strength, TP316L 170min (N/MM2), 316 205 min (N/MM2). Comparison of Composition Ranges of TP316 Stainless SteelSelection 316L Stainless Steel for High Purity Semiconductor Gas Filter AssembliesPipes Tubes Plates Bars Square Tubes Weight Calculation CalculatorPipe Working Pressure CalculationMetals Weight Calculator Calculation 316L Chemical Composition316L Resistance to Corrosion316L Physical Properties316L Mechanical Properties316L Oxidation Resistance316L Heat Treatment316L Fabrication

TP304 is equivalent to 06Cr19Ni10 (new GB standard 304), 304 is equivalent to 0Cr18Ni9(old GB standard 304). In terms of price, TP304 is also about USD 65 more expensive than 304 (per metric tons) What is the element content? The main difference between 304 and TP304 is its chromium content. The chromium content of TP304 is one higher, reaching more than 18, so its corrosion resistance and price are slightly higher than that of GB 304. Therefore, TP304 is more expensive than 304 in price, and the ingredients are as follows: Grade – C Mn Si P S Cr Mo Ni N TP304 min.max. -0.08 -2.0 -1.00 -0.045 -0.030 18.0-20.0 – 8.0-11.0 – 304 min.max. -0.08 -2.0 -1.00 -0.040 -0.015 17.00-19.5 – 8.0-10.5 – General PropertiesChemical CompositionResistance to CorrosionHeat ResistancePhysical PropertiesMechanical PropertiesWeldingHeat TreatmentCleaning304/304L/304LN/304H Tubing and PipeStainless Steel ” L” “H” GradeDifference Between 304H and 347HDifference Between 304 304L and 321304…

Test Items ASTM A312 / ASME SA312 ASTM A269 ASTM A213 / ASME SA213 or ASTM A213/A269 Tensile StrengthTest Lot≤100Pcs, 1Pcs Per LotLot＞100Pcs, 2 Pcs Per Lot no requirement Lot≤50Pcs, 1Pcs Per LotLot＞50Pcs, 2 Pcs Per Lot Hardness Test no requirement 2 Pcs 2 Pcs Flaring Test 5% of Each Lot no requirement Each end of one finihed tubes Flattening Test no requirement 1 Pcs each end of another finihed tubes Intergranular Test according to order according to order according to order Grain Size 304H/321H/316H/347H no requirement 304H/321H/316H/347H Eddy Current Test or Hydrostatic Test alternative alternative alternative Ultrasonic Test according to order according to order according to order

Material Form Type of Discontinuity Water-Washable Penetration Time* Aluminium Castings Porosity, Cold Shuts 5 to 15 min Aluminium Extrusions, Forgings Laps NR** Aluminium Welds Lack of Fusion, Porosity 30 Aluminium All Cracks, Fatigue Cracks 30, not recommended for fatigue crack Magnesium Castings Porosity, Cold Shuts 15 Magnesium Extrusions, Forgings Laps not recommended Magnesium Welds Lack of Fusion, Porosity 30 Magnesium All Cracks, Fatigue Cracks 30, not recommended for fatigue crack Steel Castings Porosity, Cold Shuts 30 Steel Extrusions, Forgings Laps not recommended Steel Welds Lack of Fusion, Porosity 60 Steel All Cracks, Fatigue Cracks 30, not recommended for fatigue crack Brass & Bronze Castings Porosity, Cold Shuts 10 Brass & Bronze Extrusions, Forgings Laps not recommended Brass & Bronze Brazed Parts Lack of Fusion, Porosity 15 Brass & Bronze All Cracks 30 Brass & Bronze       Plastics All Cracks 5 to 30 Glass All Cracks 5 to 30…

PT Test Standard International Organization for Standardization (ISO) ISO 3059, Non-destructive testing – Penetration testing and magnetic particle testing – Viewing conditions ISO 3452-1, Non-destructive testing. Penetrant testing. Part 1. General principles ISO 3452-2, Non-destructive testing – Penetrant testing – Part 2: Testing of penetrant materials ISO 3452-3, Non-destructive testing – Penetrant testing – Part 3: Reference test blocks ISO 3452-4, Non-destructive testing – Penetrant testing – Part 4: Equipment ISO 3452-5, Non-destructive testing – Penetrant testing – Part 5: Penetrant testing at temperatures higher than 50 °C ISO 3452-6, Non-destructive testing – Penetrant testing – Part 6: Penetrant testing at temperatures lower than 10 °C ISO 10893-4: Non-destructive testing of steel tubes. Liquid penetrant inspection of seamless and welded steel tubes for the detection of surface imperfections. ISO 12706, Non-destructive testing – Penetrant testing – Vocabulary ISO 23277, Non-destructive testing of welds – Penetrant testing of welds – Acceptance levels European Committee for Standardization (CEN) EN 1371-1, Founding – Liquid penetrant inspection…

What is ASTM A269 and ASTM A312 / ASME SA312? ASTM A269 / A269M Standard Specification for Seamless and Welded Austenitic Stainless Steel Tubing for General Service ASTM A312 / A312M Standard Specification for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipe StandardItem ASTM A213 ASTM A269 ASTM A312 Grade 304  304L 304H   304N  304LN316  316L 316Ti   316N  316LN321  321H   310S   310H  309S317  317L 347 347H 304  304L 304H 304N 304LN316  316L 316Ti 316N  316LN321 321H  310S 310H  309S317  317L 347 347H 304  304L 304H   304N  304LN316  316L 316Ti   316N  316LN321  321H  310S   310H  309S317  317L  347 347H Yield Strength(Mpa) ≥170；≥205 ≥170；≥205 ≥170；≥205 Tensile Strength(Mpa) ≥485；≥515 ≥485；≥515 ≥485；≥515 Elongation(%) ≥35 ≥35 ≥35 Hydrostatic Test OD(mm) Pressure max(MPa) OD(mm) Pressure max(MPa) OD(mm) Pressure max(MPa) D<25.4, 7Mpa D<25.4, 7Mpa D≤88.9, 17MPa 25.4≤D<38.1, 10Mpa 25.4≤D<38.1, 10Mpa 38.1≤D<50.8, 14Mpa 38.1≤D<50.8, 14Mpa 50.8≤D<76.2， 17MPa 50.8≤D<76.2， 17MPa D>88.9, 19MPa 76.2≤D<127， 24MPa 76.2≤D<127， 24MPa D≥127, 31Mpa D≥127, 31Mpa P=220.6t/D…

Stainless steel pipe is curved in the length direction, and the degree of curve is called the degree of curvature (Straightness). The curvature specified in the standard is generally divided into the following two types: A. Local curvature: Use a one-meter straight ruler to lean on the maximum bend of the stainless steel pipe, and measure the chord height (mm), which is the value of the local curvature. The unit is mm/m, and the expression is 2.5mm/m. . This method is also suitable for tube end curvature. B. Total curvature of the total length: Use a thin rope to tighten from both ends of the pipe, measure the maximum chord height (mm) at the bend of the steel pipe, and then convert it into a percentage of the length (in meters), which is the length of the stainless steel pipe The full-length curvature of the direction. For example: the length…

In the cross section of the stainless steel pipe, there is a phenomenon that the outer diameters are not equal, that is, there are maximum and minimum outer diameters that are not necessarily perpendicular to each other. The difference between the Maximum outer diameter and the minimum outer diameter is the Ovality (or out-of-roundness). In order to control the ovality, some stainless steel pipe standards stipulate the allowable tolerance of ovality, which is generally specified as not exceeding 80% of the outer diameter tolerance (implemented after negotiation between the supplier and the buyer). The general requirement standard for stainless steel pipe is ASTM A999. The OD under tolerance on all sizes is -0.031”. The over tolerance increases with OD size but for the range of 1-1/2 to 4 NPS the plus tolerance is also 0.031”. An additional ovality tolerance allowance is permitted for thin wall thickness pipe which is defined…

The wall thickness of stainless steel pipe cannot be the same everywhere, and there are objectively unequal wall thicknesses in the cross section and longitudinal pipe body, that is, uneven wall thickness. In order to control this non-uniformity, some stainless steel pipe standards such ASTM A312, ASTM A999 stipulate the allowable index of uneven wall thickness, which is generally specified not to exceed 80% of the wall thickness tolerance (implemented after negotiation between the supplier and the buyer). ASTM A269 Welded and Seamless General Service Tolerances, Inches Tolerances, Inches Tolerances, Inches Tolerances, Inches SizeInches OD,Inches Wall Ovality2 x Tol., In. Cut Length(b), In. Less than 1/2 ±0.005 ±15% —— +1/8–0 Over 1/2 to 1-1/2 ±0.005 ±10% –0.065 +1/8–0 Over 1-1/2 to 3-1/2 ±0.010 ±10% –0.095 +3/16–0 Over 3-1/2 to 5-1/2 ±0.015 ±10% –0.150 +3/16–0 Over 5-1/2 to 8 ±0.030 ±10% —— +3/16–0 Related References:Weight of SteelsStainless Steel Density Calculation MethodsCalculate…

Delivery length is also called the length required by the user or the length of the order. The standard has the following regulations on delivery length: A. Normal length / Random Length (also called non-fixed-length length): Any stainless steel tube whose length is within the length range specified by the standard and has no fixed length requirement is called normal length. For example, the structural stainless steel pipe standard stipulates: hot-rolled (extruded, expanded) steel pipe 3000mm ~ 12000mm; cold drawn (rolled) steel pipe 2000mm ~ 10500mm. B. Fixed Length: The fixed-length should be within the usual length range, which is a certain fixed-length dimension required in the contract. However, it is impossible to cut out the absolute fixed-length length in actual operation, so the standard stipulates the allowable positive deviation value for the fixed-length length. Take the structural stainless steel pipe standard as: The yield rate of production of fixed-length…

Deviation In the production process, because the actual size is difficult to meet the nominal pipe size requirement, that is, it is often larger or smaller than the nominal size, so the standard stipulates that there is a difference between the actual size and the nominal size of the stainless steel pipe. A positive difference is called a positive deviation, and a negative difference is called a negative deviation. Tolerance The standard stipulates that the sum of the absolute value of the positive and negative deviations of stainless steel pipes is called tolerance, also called “tolerance zone”. For wall thickness we have two choices, Minimum Wall Thickness and Average Wall Thickness. Difference Standard Specifications have different tolerance requests. Mainly specify in ASTM A999 or ASTM A1016 or EN 10216-5 Related References:Pipe ScheduleStainless Steel Tube SizeASME B36.10M – 2015 Welded and Seamless Wrought Steel PipeASME B36.19M – 2004 Stainless Steel Pipe…

A. Nominal Pipe size: It is the nominal size specified in the standard such ASME B36.10m, ASME B36.19m, the ideal size that users and manufacturers hope to obtain, and the order size specified in the contract. B. Actual Pipe size: It is the actual size obtained during the production process, which is often larger or smaller than the nominal size. This phenomenon of being larger or smaller than the nominal size is called deviation. Related References:Pipe ScheduleStainless Steel Tube SizeASME B36.10M Welded and Seamless Wrought Steel PipeASME B36.19M Stainless Steel Pipe Pipe ScheduleGauge SizeNominal Pipe SizeStainless Steel Pipe DimensionsSheet Metal GaugeStainless Steel Pipe SizeStainless Steel Tube SizeANSI Standard Pipe ChartInch to mm ChartB.W.G. – Birmingham Wire GaugeA.S.W.G. American Standard Wire GaugeGauge Tolerances of Stainless SteelConversion Table of Temperatue, Length,Mass,PressureNPS-Nominal-Pipe-Size and DN – Diametre NominalISO Tolerances For FastenersISO Tolerance Chart|Machining Process associated with ISO IT Tolerance GradeStainless Steel Thickness Weight TableGalvanized…