2507 Tubes 2507 Super Duplex Pipes Manufacturer

Guanyu Tube is specialized manufacturer of 2507 Super Duplex Tubing and 2507 Super Duplex Tube, 2507 Tubes, 2507 Seamless Tubes. ASTM A789 ASME SA 789 SAF 2507 UNS S32750 , EN 10216-5 1.4410. Super Duplex 2507 Pipe Supplier, Manufacturer. We can manufacture both Seamless and Welded 2507 tubes. Please send your request to us for more details. Amazing price and good quality super duplex S32750 / SAF 2507 super duplex pipes. We have a large quantity of super duplex UNS S32750 / SAF 2507 Stainless steel pipes stock in China to support your urgent project.

2507 Super Duplex Tubes Properties and Character
2507 Super Duplex Tubing Sizes
ASME SA789 S32750 Chemical Composition
2507 Super Duplex Tube Mechanical Properties
2507 Super Duplex Tube Standard Specifications
Duplex Stainless Steel Comparison Chart
2507 Tubes Benefits
2507 Super Duplex Tube and Pipes Applications
2507 Super Duplex Tube Marking and Packing
2507 Super Duplex Tube Exported Countries
2507 Super Duplex Tube Related Links

2507 Super Duplex Tubes Properties and Character

2507 Tubes is super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion.

2507 Tubes have enhanced pitting and crevice corrosion resistance when compared with 300-series austenitic stainless steel or conventional duplex alloys. This can be attributed to the enhanced levels of chromium, molybdenum and nitrogen found in these materials. Alloy 2507 is the most common “super” duplex grade.

Usage of Duplex 2507 Pipe S32750 Stainless Steel should be limited to applications below 6000°F (3160°C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507.The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

S32750 Stainless Steel possesses excellent mechanical properties. Often a light gauge of S32750 Stainless Steel can be used to achieve the same design strength of a thicker nickel alloy. The resulting saving in weight can reduce the overall cost of fabrication.

The chemical composition of Super Duplex Tubing based on high contents of chromium, nickel and molybdenum improves intergranular and pitting corrosion resistance. Additions of nitrogen promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness. Moreover, the two-phase microstructure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steel. From the introduction of its first-generation, Duplex steel has seen a steady increase in popularity.

Recently, the production of high-strength, corrosion resistant Super Duplex Pipe has been implemented in the marine and chemical industries, architecture and mast riggings, wire lines, lifting and pulley equipment and well service strands. In fact, development of wire processing techniques has enabled the production of steel wires down to 1mm in diameter.

2507 Tubes Sizes

Outside Diameter: 6 – 530mm, Wall Thickness: 0.5 – 60mm. Length: 25000mm Maximum

2507 Tubes EN 10216-5 1.4507 Chemical Composition

ASTM A789 SAF 2507 Pipe Chemical Composition

C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %	N %	Cu %
0.03 max	0.8 max	1.2 max	0.035 max	0.02 max	24.0-26.0	6.0-8.0	3.0-5.0	0.24-0.32	0.50 max

EN 10216-5 1.4410 1.4507 Chemical Composition

Grade	C %	Si %	Mn %	P %	S %	Cr %	Ni %	Mo %	N %	Cu %
1.4507	0.030 max	0.70 max	2.00 max	0.035 max	0.015 max	24.0-26.0	5.50-7.50	2.70-4.00	0.15-0.30	1.00-2.50
1.4410	0.030 max	1.00 max	2.00 max	0.035 max	0.015 max	24.0-26.0	6.00- 8.00	3.00-4.5	0.20-0.35	–

Table.1 ASTM A789 Duplex Steel Chemical Composition

The steel shall conform to the chemical requirements prescribed in Table 1.

Designation	C	Mn	P	S	Si	Ni	Cr	Mo	N	Cu	Others
S31200	0.030	2.00	0.045	0.030	1.00	5.5–6.5	24.0–26.0	1.20–2.00	0.14–0.20	. . .	. . .
S31260	0.030	1.00	0.030	0.030	0.75	5.5–7.5	24.0–26.0	2.5–3.5	0.10–0.30	0.20 –0.80	W 0.10 –0.50
S31500	0.030	1.20 –2.00	0.030	0.030	1.40 –2.00	4.3–5.2	18.0–19.0	2.50–3.00	0.05–0.1	. . .	. . .
S31803	0.030	2.00	0.030	0.020	1.00	4.5–6.5	21.0–23.0	2.5–3.5	0.08–0.20	. . .	. . .
S32001	0.030	4.00 –6.00	0.040	0.030	1.00	1.0–3.0	19.5–21.5	0.60	0.05–0.17	1.00	. . .
S32003	0.030	2.00	0.030	0.020	1.00	3.0-4.0	19.5-22.5	1.50-2.00	0.14-0.20	. . .	. . .
S32101	0.040	4.0-6.0	0.040	0.030	1.00	1.35-1.70	21.0-22.0	0.10-0.80	0.20-0.25	0.10 -0.80	. . .
S32202	0.030	2.00	0.040	0.010	1.00	1.00–2.80	21.5–24.0	0.45	0.18–0.26	. . .	. . .
S32205	0.030	2.00	0.030	0.020	1.00	4.5–6.5	22.0–23.0	3.0–3.5	0.14–0.20	. . .	. . .
S32304	0.030	2.50	0.040	0.040	1.00	3.0–5.5	21.5–24.5	0.05–0.60	0.05–0.20	0.05 –0.60	. . .
S32506	0.030	1.00	0.040	0.015	0.90	5.5–7.2	24.0–26.0	3.0–3.5	0.08–0.20	. . .	W 0.05 –0.30
S32520	0.030	1.50	0.035	0.020	0.80	5.5–8.0	23.0–25.0	3.–5.	0.20–0.35	0.50 –3.00	. . .
S32550	0.04	1.50	0.040	0.030	1.00	4.5–6.5	24.0–27.0	2.9–3.9	0.10–0.25	1.50 –2.50	. . .
S32707	0.030	1.50	0.035	0.010	0.50	5.5–9.5	26.0–29.0	4.0–5.0	0.30–0.50	1.0 max	Co 0.5 –2.0
S32750	0.030	1.20	0.035	0.020	0.80	6.0–8.0	24.0–26.0	3.0–5.0	0.24–0.32	0.50	. . .
S32760	0.030	1.00	0.030	0.010	1.00	6.0–8.0	24.0–26.0	3.0–4.0	0.20–0.30	0.50 –1.00	W 0.50 –1.00
S32808	0.030	1.10	0.030	0.010	0.50	7.0–8.2	27.0–27.9	0.80–1.20	0.30–0.40	. . .	W 2.10 –2.50
S32900	0.08	1.00	0.040	0.030	0.75	2.5–5.0	23.0–28.0	1.00–2.00	. . .	. . .	. . .
S32906	0.030	0.80 –1.50	0.030	0.030	0.80	5.8–7.5	28.0 –30.0	1.50–2.60	0.30–0.40	0.80	. . .
S32950	0.030	2.00	0.035	0.010	0.60	3.5–5.2	26.0–29.0	1.00–2.50	0.15–0.35	. . .	. . .
S33207	0.030	1.50	0.035	0.010	0.80	6.0–9.0	29.0–33.0	3.0–5.0	0.40–0.60	1.0	. . .
S39274	0.030	1.00	0.030	0.020	0.80	6.0–8.0	24.0–26.0	2.5–3.5	0.24–0.32	0.20 –0.80	W 1.50 –2.50
S39277	0.025	0.80	0.025	0.002	0.80	6.5–8.0	24.0–26.0	3.00–4.00	0.23–0.33	1.20 –2.00	W 0.80 –1.21
S82011	0.030	2.0 –3.0	0.040	0.020	1.00	1.00–2.00	20.5–23.5	0.10–1.00	0.15–0.27	0.50	. . .
S82441	0.030	2.50 –4.00	0.035	0.005	0.70	3.0–4.5	23.0–25.0	1.00–2.00	0.20–0.30	0.10 –0.80

A Maximum, unless a range or minimum is indicated. Where ellipses (…) appear in this table, there is no minimum and analysis for the element need not be determined or reported.
B Designation established in accordance with Practice E527 and SAE J1086 PREN
C % Cr + 3.3 × % Mo + 16 × % N $ 41.
D % Cr + 3.3 × % Mo + 16 × % N $ 40.

2507 TubeS Mechanical Properties

ASTM A789 S32750SAF 2507 Pipe Mechanical Properties

Tensile Strength, Mpa	Yield Strength, MPa	Elongation, %	Hardness, HB
800 min	550 min	15 min	310 max

Tensile Strength and Hardness Requirements

11.1 The material shall conform to the tensile and hardness properties prescribed in Table 4.

Grade	Tensile strength, min., ksi [MPa]	Yield strength, min., ksi [MPa]	Elongation in 2 in., or 50mm, min, %	Hardness, Max Brinell
S31803	90 [620]	65 [450]	25	290
S32205	95 [655]	70 [485]	25	290
S31500	92 [630]	64 [440]	30	290
S32550	110 [760]	80 [550]	15	297
S31200	100 [690]	65 [450]	25	280
S31260	100 [690]	65 [450]	25	290
S32001	90 [620]	65 [450]	25	290
S32304	100 [690]	65 [450]	25	290
S32750	116 [800]	80 [550]	15	310
S32760	109 [750]	80 [550]	25	300
S32950	100 [690]	70 [480]	20	290
S32520	112 [770]	80 [550]	25	310

For tubing smaller than 1⁄2 in. [12.7 mm] in outside diameter, the elongation values given for strip specimens in Table 4 shall apply. Mechanical property requirements do not apply to tubing smaller than 1⁄8 in. [3.2 mm] in outside diameter or with walls thinner than 0.015 in. [0.4 mm].
Prior to A789/A789M–04, the values for S32003 were 90 ksi tensile strength and 65 ksi yield strength.

2507 Tubes 2507 Super Duplex Tube Standard Specifications

S32750 Stainless Steel Standard Specification:

Standard	ASTM A789, ASME SA789, ASTM A790, ASME SA790
Equivalent Standards	DIN 17458, GOST 9941-81, GOST 9940-81, EN 10216-5, ASTM A790, ASME SA790, DIN 17456
Material	S32750 2507 Pipe
Equivalent Materials	X2CrNiMoN25-7-4, 1.4410, SAF 2507, F53
Related Products	stainless steel tube, stainless steel pipe, heat exchanger tube, ASTM A789

Duplex Stainless Steel Comparison Chart

China GB	ISO Unified Digital Code	ASTM / ASME	UNS code	EN Code	Company Commercial Grade
022Cr23Ni4MoCuN	S23043	S32304	S32304	1.4362	SAF2304 (Sandvik)
022Cr22Ni5Mo3N	S22253	S31803	S31803	1.4462	–
022Cr23Ni5Mo3N	S22053	S32205	S32205	1.4462	SAF2205 (Sandvik)
022Cr25Ni7Mo4N	S25073	S32750	S32750	1.441	SAF2507(Sandvik)
022Cr25Ni7Mo3WCuN	S22583	S31260	S31260	–	–
03Cr25Ni6Mo3Cu2N	S25554	S32550	S32550	1.4507	UR52+
022Cr25Ni7Mo4WCuN	S27603	S32760	S32760	1.4501	Zeron100
00Cr27Ni7Mo5N	–	S32707	S32707	–	SAF2707(Sandvik)

2507 Super Duplex Tubes Benefits

High strength,
High resistance to pitting, crevice corrosion resistance.
High resistance to stress corrosion cracking, corrosion fatigue and erosion,
Excellent resistance to CSCC chloride stress-corrosion cracking
High thermal conductivity
Low coefficient of thermal expansion
Good sulfide stress corrosion resistance,
Low thermal expansion and higher heat conductivity than austenitic steels,
Good workability and weldability,
High energy absorption.

2507 Tubes and Pipes Applications

Super Duplex Tubing are mainly used in seawater environment, petrochemical industry, chemical fertilizer industry, petroleum refining industry, petroleum and gas industry, light industry, pulp industry, energy and environment protection industry.

Heat exchanger tubes and pipes for production and handling of gas and oil,
Heat exchanger and pipes in desalination plants,
Mechanical and structural components,
Power industry FGD systems,
Pipes in process industries handling solutions containing chlorides,
Utility and industrial systems, rotors, fans, shafts and press rolls where the high corrosion fatigue strength can be utilized,
Cargo tanks, vessels, piping and welding consumables for chemical tankers.
High-strength, highly resistant wiring.

The various Alloys Super-Duplex falls under the Duplex stainless steel grouping. Duplex stainless steel are graded for their corrosion performance depending on their alloy content. Today, modern Duplex stainless steel can be divided into four groups:

Lean Duplex such as 2304, which contains no deliberate Mo addition;
2205, the work-horse grade accounting for more than 80% of duplex usage;
25 Cr duplex such as Alloy 255 and DP-3;
Super-Duplex; with 25-26 Cr and increased Mo and N compared with 25 Cr grades, including grades such as 2507, Zeron 100, UR 52N+, and DP-3W

Composition of Duplex Stainless Steel The table lists the Super Duplex Pipe covered in ASTM specifications for plate, sheet, and bar products.

a Weight percent, maximum unless otherwise noted.
b Unless otherwise indicated, a common name, not a trademark, widely used, not associated with any one producer, as listed in ASTM A 240.
c W 0.50-1.00; Cr+3.3Mo+16N=40 min.
d AISI designation

2507 Super Duplex Tube Marking and Packing

ASTM-A790-2507-S32750-Stainless-Steel-Pipe-SMLS

ASTM A789 / ASME SA789 covers grades of average wall thickness, or, if specified on the order, minimum wall thickness, of stainless steel tubing for services requiring general corrosion resistance, with particular emphasis on resistance to stress corrosion cracking. These steels are suscep- tible to embrittlement if used for prolonged periods at elevated temperatures.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard. Within the text, the SI units are shown in brackets. The inch-pound units shall apply unless the M designation of this specification is specified in the order.

Referenced Documents

ASTM Standards:
A480/A480M Specification for General Requirements for Flat-Rolled Stainless and Heat-Resisting Steel Plate, Sheet, and Strip
A1016/A1016M Specification for General Requirements for Ferritic Alloy Steel, Austenitic Alloy Steel, and Stainless Steel Tubes
E527 Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)

SAE Standard:
SAE J 1086 Practice for Numbering Metals and Alloys (UNS)

2507 Tubes Ordering Information

Orders for product under this specification should in- clude the following, as required, to describe the desired material adequately:

Quantity (feet, metres, or number of lengths),

Name of product (seamless or welded tubes),

Grade

Size (outside diameter and average wall thickness, unless minimum wall thickness is specified),

Length (specific or random),

Optional requirements (for product analysis, see Section for hydrostatic or nondestructive electric test, see Section 10

Test report required (see the Inspection section of Specification A1016/A1016M

Specification designation, and

Special requirements.

General Requirements

Product furnished under this specification shall conform to the applicable requirements of specification A1016/ A1016M, unless otherwise provided herein.

Manufacture

The tubes shall be made by the seamless or welded process with no filler metal added.

Heat Treatment

All tubes shall be furnished in the heat-treated condition in accordance with the procedures shown in Table 2. For seamless tubes, as an alternate to final heat treatment in a continuous furnace or batch-type furnace, immediately follow- ing hot forming while the temperature of the tubes is not less than the specified minimum solution treatment temperature, tubes may be individually quenched in water or rapidly cooled by other means.

Product Analysis

1. An analysis of either one billet or one length of flat-rolled stock or one tube shall be made from each heat. The chemical composition thus determined shall conform to the requirements specified.

2. A product analysis tolerance (see the annex table on Chemical Requirements (Product Analysis Tolerances) in Specification A480/A480M) shall apply. The product analysis tolerance is not applicable to the carbon content for material with a specified maximum carbon of 0.04 % or less.

3. If the original test for product analysis fails, retests of two additional billets, lengths of flat-rolled stock, or tubes shall be made. Both retests for the elements in question shall meet the requirements of this specification; otherwise, all remaining material in the heat shall be rejected or, at the option of the producer, each billet or tube may be individually tested for acceptance. Billets, lengths of flat-rolled stock, or tubes that do not meet the requirements of this specification shall be re- jected.

NOTE 1—For flange and flaring requirements, the term lot applies to all tubes prior to cutting of the same nominal size and wall thickness that are produced from the same heat of steel. When final heat treatment is in a batch-type furnace, a lot shall include only those tubes of the same size and from the same heat that are heat treated in the same furnace charge. When the final heat treatment is in a continuous furnace, or when heat treated condition is obtained directly by quenching after hot forming, the number of tubes of the same size and from the same heat in a lot shall be determined from the size of the tubes as prescribed in Table 3.

NOTE 2—For tension and hardness test requirements, the term lot applies to all tubes prior to cutting, of the same nominal diameter and wall thickness that are produced from the same heat of steel. When final heat treatment is in a batch-type furnace, a lot shall include only those tubes of the same size and the same heat that are heat treated in the same furnace charge. When the final heat treatment is in a continuous furnace, or when heat treated condition is obtained directly by quenching after hot forming, a lot shall include all tubes of the same size and heat, heat treated in the same furnace at the same temperature, time at heat, and furnace speed, or all tubes of the same size and heat, hot formed and quenched in the same production run.

Mechanical Tests Required

1. Tension Tests—One tension test shall be made on a specimen for lots of not more than 50 tubes. Tension tests shall be made on specimens from two tubes for lots of more than 50 tubes (see Note 2).
2. Flaring Test (for Seamless Tubes)—One test shall be made on specimens from one end of one tube from each lot (see Note 1) of finished tubes. The minimum expansion of the inside diameter shall be 10 %.
3. Flange Test (for Welded Tubes)—One test shall be made on specimens from one end of one tube from each lot (see Note1) of finished tubes.
4. Hardness Test—Brinell hardness tests or Rockwell hardness tests shall be made on specimens from two tubes from each lot (see Note 2).
5. When more than one heat is involved, the tension, flaring, flanging, and hardness test requirements shall apply to each heat.
6. Reverse Flattening Test—For welded tubes, one reverse flattening test shall be made on a specimen from each 1500 ft [450 m] of finished tubing.

Hydrostatic or Nondestructive Electric Test

1 Each tube shall be subjected to the nondestructive electric test or the hydrostatic test. The type of test to be used shall be at the option of the manufacturer, unless otherwise specified in the purchase order.

2. The hydrostatic test shall be in accordance with Speci- fication A1016/A1016M, except that in the calculation of the hydrostatic test pressure 64000(441.2) shall be substituted for 32000(220.6).

Table.2 Heat Treatment

UNS Designation	Temperature	Quenching
S31803	1870-2010 °F [1020-1100°C]	Rapid cooling in air or water
S32205	1870-2010 °F [1020-1100°C]	Rapid cooling in air or water
S31500	1800-1900 °F [980-1040°C]	Rapid cooling in air or water
S32550	1900 °F [1040°C] min.	Rapid cooling in air or water
S31200	1920-2010 °F [1050-1100°C]	Rapid cooling in water
S31260	1870-2010 °F [1020-1100°C]	Rapid cooling in water
S32001	1800-1950 °F [982-1066°C]	Rapid cooling in air or water
S32003	1850-2050 °F [1010-1120°C]	Rapid cooling in air or water
S32101	1870 °F min	Quenched in water or Rapidly cooling in other means
S32202	1870-1975 °F [1020-1080°C]	Rapid cooling in air or water
S32506	1870-2050 °F [1020-1120°C]	Rapid cooling in air or water
S32304	1700-1920 °F [925-1050°C]	Rapid cooling in air or water
S32750	1880-2060 °F [1025-1125°C]	Rapid cooling in air or water
S32760	2010-2085 °F [1100-1140°C]	Rapid cooling in air or water
S32950	1820-1880 °F [990-1025°C]	Rapid cooling in water
S32520	1975-2050 °F [1080-1120°C]	Rapid cooling in air or water

Permissible Variations in Dimensions

1 Variations in outside diameter, wall thickness, and length from those specified shall not exceed the amounts prescribed in Table 5.
2 The permissible variations in outside diameter given in Table 5 are not sufficient to provide for ovality in thin-walled tubes, as defined in the table. In such tubes, the maximum and minimum diameters at any cross section shall deviate from the nominal diameter by no more than twice the permissible variation in outside diameter given in Table 5; however, the mean diameter at that cross section must still be within the given permissible variation.

Surface Condition

All tubes shall be free of excessive mill scale, suitable for inspection. A slight amount of oxidation will not be considered as scale. Any special finish requirements shall be subject to agreement between the manufacturer and the purchaser.

Product Marking

In addition to the marking prescribed in Specification A1016/A1016M, the marking shall indicate whether the tubing is seamless or welded and the wall designation (average wall or minimum wall).

2507 Tubes Export Record

Export ASTM A789 S32750 Stainless Steel Seamless Tubes finished in Pickling Annealing. Size with Outside Diameter in 38.1mm, Wall Thickness in 1.65mm Length in 8000mm. Total in 3000KGS.

2507 Super Duplex Pipe Export Countries

MIDDLE EAST
Saudi Arabia
  Iran
  Iraq
  UAE
  Qatar
  Bahrain
  Oman
  Kuwait
  Turkey
  Yemen
  Syria
  Jordan
  Cyprus

AFRICA
  Nigeria
  Algeria
  Angola
  South Africa
  Libya
  Egypt
  Sudan
  Equatorial Guinea
  The Republic Of Congo
  Gabon

NORTH AMERICA
  USA
  Canada
  Mexico
  Panama
  Costa Rica
  Puerto Rica
  Trinidad And Tobago
  Jamaica
  Bahamas
  Denmark

EUROPE
Russia
  Norway
  Germany
  France
  Italy
  UK
  Spain
  Ukraine
  Netherland
  Belgium
  Greece
  Czech Republic
  Portugal
  Hungary
  Albania
  Austria
  Switzerland
  Slovakia
  Finland
  Ireland
  Croatia
  Slovenia
  Malta

ASIA
India
  Singapore
  Malaysia
  Indonesia
  Thailand
  Vietnam
  South Korea
  Japan
  Sri Lanka
  Maldives
  Bangladesh
  Mayanmar
  Taiwan
  Cambodia
SOUTH AMERICA
Argentina
  Bolivia
  Brazil
  Chile
  Venezuela
  Colombia
  Ecuador
  Guyana
  Paraguay
  Uruguay

2507 Super Duplex Tube Related Links

ASTM A789 ASME SA 789 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Tubes
ASTM A790 ASME SA790 S31803 S32205 S32101 S32750 S32760 S32304 S31500 S31260 Seamless Pipe
EN 10216-5 1.4462 1.4362 1.4162 1.4410 1.4501 Seamless Tubes

2507 Tubes | 2507 Super Duplex Tube | 2507 Super Duplex Tubing