ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow Bar | Stainless Steel Hollow Tube
ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow bar
Guanyu Steel Tube is a leading Manufacturer and Supplier of ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow bar with wide range of Grades and Sizes. Hollow Bar is more economical to use rather than bore out solid stainless steel bar.
We choose the best raw material to produce ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow bar, make it have good Machinability and machining properties can increase the cutting speed, reduce the tool waste.
We offer good cutting service. We can cut the stainless steel hollow bar in any length according to the customer requirement.
ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow Tubes main application:
Chemical Industry, Petrochemical Industry, Automotive Production Industry, Pulp and Paper Make Industries, Textile Industry, Food processing industry Sanitary Tubes, Anti-friction and Slide Bearing.
ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow Tube Delivery Condition:
Annealed Pickled (AP)ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow Tube Specification:
ASTM A511 / A511M – 16 Standard Specification for Seamless Stainless Steel Mechanical Tubing and Hollow Bar
EN 10294 – 1 Hollow bars for machining — Technical delivery conditions — Part 1: Non alloy and alloy steel
EN 10294 – 2 Hollow Bars for Machining – Technical delivery conditions – Part 2: Stainless Steels with Specified Machinability Properties
EN 10297 – 2 Seamless circular steel tubes for mechanical and general engineering purposes – Technical delivery conditions – Part 2: Stainless steel
| ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow Tube Outside Diameter: | 31.75 – 323mm, 1 1/4″ – 12″ |
| ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow Tube Wall Thickness: | 1.24 – 50 mm etc, |
| ASTM A511 304 304L 309S 310S 316 316L 317 321 347 Stainless Steel Hollow bar Standards(Norm): | EN 10216-5, EN 10294-1, EN 10294-2, EN 10297-2, DIN 17456, DIN 17458, DIN 2462, DIN 17455 |
| GB/T14975, T14976, T13296, GB5310, | |
| ASTM A213, A269, A312, A511, A789, A790, A928, A999, A1016, ASTM B161, ASTM B163, ASTM B165, ASTM B167, ASTM B338, ASTM B407, ASTM B423, ASTM B444,ASTM B619, ASTM B622, ASTM B626, ASTM B668, ASTM B677, ASTM B829 | |
| JIS G3459, JIS G3463, JIS G3446, JIS G3447, JIS G3448, JIS G3468 | |
| GOST 9940, GOST 9941 |
ASTM A511 Chemical Composition:
| Grade | Carbon | Mn | P | S | Si, max | Ni | Cr | Mo | Ti | Columbium plus Tantalum | Se |
| max | max | max | |||||||||
| MT 302 | 0.08 to 0.20 | 2 | 0.04 | 0.03 | 1 | 8.0–10.0 | 17.0–19.0 | … | … | … | … |
| MT 303 | 0.15 max | 2 | 0.2 | 0.15 min | 1 | 8.0–10.0 | 17.0–19.0 | … | … | … | … |
| MT 303Se | 0.15 max | 2 | 0.04 | 0.04 | 1 | 8.0–11.0 | 17.0–19.0 | … | … | … | 0.12–0.2 |
| MT 304 | 0.08 max | 2 | 0.04 | 0.03 | 1 | 8.0–11.0 | 18.0–20.0 | … | … | … | … |
| MT 304L | 0.035 maxA | 2 | 0.04 | 0.03 | 1 | 8.0–13.0 | 18.0–20.0 | … | … | … | … |
| MT 305 | 0.12 | 2 | 0.04 | 0.03 | 1 | 10.0–13.0 | 17.0–19.0 | … | … | … | … |
| MT 309S | 0.08 max | 2 | 0.04 | 0.03 | 1 | 12.0–15.0 | 22.0–24.0 | … | … | … | … |
| MT 310S | 0.08 max | 2 | 0.04 | 0.03 | 1 | 19.0–22.0 | 24.0–26.0 | … | … | … | … |
| MT 316 | 0.08 max | 2 | 0.04 | 0.03 | 1 | 11.0–14.0 | 16.0–18.0 | 2.0–3.0 | … | … | … |
| MT 316L | 0.035 maxA | 2 | 0.04 | 0.03 | 1 | 10.0–15.0 | 16.0–18.0 | 2.0–3.0 | … | … | … |
| MT 317 | 0.08 max | 2 | 0.04 | 0.03 | 1 | 11.0–14.0 | 18.0–20.0 | 3.0–4.0 | … | … | … |
| MT 321 | 0.08 max | 2 | 0.04 | 0.03 | 1 | 9.0–13.0 | 17.0–20.0 | … | B | … | … |
| MT 347 | 0.08 max | 2 | 0.04 | 0.03 | 1 | 9.0–13.0 | 17.0–20.0 | … | … | C | … |
A For small diameter or thin wall tubing or both, where many drawing passes are required, a maximum of 0.040 % carbon is necessary in grades MT-304L and MT-316L. Small outside diameter tubes are defined as those under a 0.500 in. [12.7 mm] outside diameter and light-wall tubes as those under a 0.049 in. [1.2 mm] average wall thickness (0.044 in. [1.1 mm] min wall thickness).
B The titanium content shall be not less than five times the carbon content and not more than 0.60 %.
C The columbium plus tantalum content shall be not less than ten times the carbon content and not more than 1.00 %.
4. Permissible Variations in Outside Diameter, Ovality, Wall Thickness, and Cut-Length Variations
(Cold-Finished Round Tubing)A
| Outside Diameter,in. | Outside Diameter, Tolerance,B in. Over and Under | Ovality,B Double Outside Diameter Tolerance when wall is: | Wall Thickness in %C,D | Wall Thickness in %C,D | Permissible Variations in Cut Length, in.E | Permissible Variations in Cut Length, in.E |
| Over | Under | Over | Under | |||
| Under 1⁄2 | 0.005 | less than 0.015 in. | 15 | 15 | 1⁄8 | 0 |
| 1⁄2 to 11⁄2 , excl | 0.005 | less than 0.065 in. | 10 | 10 | 1⁄8 | 0 |
| 11⁄2 to 31⁄2 , excl | 0.01 | less than 0.095 in. | 10 | 10 | 3⁄16 | 0 |
| 31⁄2 to 51⁄2 , excl | 0.015 | less than 0.150 in. | 10 | 10 | 3⁄16 | 0 |
| 51⁄2 to 8, exc | 0.03 | less than 0.240 in. | 10 | 10 | 3⁄16 | 0 |
| 8 to 85⁄8 , excl | 0.045 | less than 0.300 in. | 10 | 10 | 3⁄16 | 0 |
| 85⁄8 to 123⁄4 , incl | 0.062 | less than 0.350 in. | 10 | 10 | 3⁄16 | 0 |
5. Permissible Variations in Outside Diameter, Wall Thickness, and Cut-Length Variations
(Hot-Finished Round Tubing)
A The usual procedure for measuring straightness is by means of a 3-ft (0.9 m) straight edge and feeler gage. If determined by the dial indicator method, the values obtained will be approximately twice those determined by the straightedge feeler gage method.
7. Permissible Variations in Outside Dimensions for Square and Rectangular Seamless Mechanical TubingAB
| Largest Outside Dimension Across Flats, in. | Tolerances, Outside Dimension Seamless Mechanical Tubing Plus and Minus, in. | Tolerances, Outside Dimension Seamless Mechanical Tubing Plus and Minus, in. |
| For Wall Thickness, Given, in. | Tolerance for Outside Dimension (Including Convexity or Concavity) Plus and Minus, in. | |
| To 3⁄4 , incl | 0.065 and lighter | 0.015 |
| To 3⁄4 , incl | over 0.065 | 0.01 |
| Over 3⁄4 to 11⁄4 , incl | all thicknesses | 0.015 |
| Over 11⁄4 to 21⁄2 , incl | all thicknesses | 0.02 |
| Over 21⁄2 to 31⁄2 , incl | 0.065 and lighter | 0.03 |
| Over 21⁄2 to 31⁄2 , incl | over 0.065 | 0.025 |
| Over 31⁄2 to 51⁄2 , incl | all thicknesses | 0.03 |
| Over 51⁄2 to 71⁄2 , incl | all thicknesses | 1% |
A The wall thickness tolerance is plus and minus 10 % of nominal wall thickness.
B The straightness tolerance is 0.075 in. 3 ft. using a 3-ft straight edge and feeler gage
Guanyu Steel Tube is well-known as one of the leading ASTM A511 seamless stainless steel mechanical tubing manufacturer and supplier in China for its reliable quality products and excellent service.
