ASTM A632 Stainless Steel Seamless Tube
ASTM A632 Seamless and Welded Austenitic Stainless Steel Tubing
ASTM A632 specification covers grades of stainless steel tubing for general corrosion-resisting and low or high-temperature service. Seamless and Welded Austenitic Stainless Steel Tubes shall be cold finished and shall be made by the seamless or welded process.ASTM A632 tainless steel tubing in sizes under 1/2 down to 0.050 in. (12.7 to 1.27 mm) in outside diameter and wall thicknesses less than 0.065 in. down to 0.005 in. (1.65 to 0.13 mm) for general corrosion-resisting and low- or high-temperature serviceAll material shall be furnished in the heat-treated condition. ASTM A632 stainless steel tubing heat-treatment procedure shall consist of heating the material and quenching in water or rapidly cooling by other means. ASTM A632 tp304 seamless and welded tubing tension tests, flaring tests, hydrostatic tests, air underwater pressure tests, and nondestructive electric tests shall be performed in accordance to the specified requirements. We have most reputed name as a ASTM A632 seamless and welded stainless steel tubing manufacturer in india. Our offered ASTM A632 seamless and welded austenitic tubing primarily consist of the austenitic grades of stainless steel including 304, 30l4, 316, 316L, 321, 347 and 348 with annealed and pickled, bright annealed mill finish, polished finish.
ASTM A632 Specification
| Specifications | ASTM A632/ ASME SA632 | |
| Grades | 304,304l,310,316,316l,317,321,347,348 | |
| O.D. | 12.7 – 102 MM | |
| Wall Thickness | 0.5 – 5 MM | |
| Length | Straight Lenghts upto 30 meters | |
| Schedule | SCH. 5, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, XXS. | |
| Welding Method | TIG or TIG + Plasma or Laser | |
| Finish | 2B MIll Finish , No.4 finish, BA Finish, 400 Grit Finish, 550 Grit Finish, 600 Grit Finish | |
| Types | Round, Square, Rectangle, Coil, "U" Shape, Hydraulic & Honed Tubes |
ASTM A632 Equivalent
| GRADE | UNS NO | DIN/WERKSTOFF |
|---|---|---|
| ASTM A632 304 | S30400 | 1.4301 |
| ASTM A632 304L | S30403 | 1.4306 |
| ASTM A632 310 | S31000 | 1.4845 |
| ASTM A632 316L | S31603 | 1.4404 |
| ASTM A632 317L | S31703 | 1.4438 |
| ASTM A632 321 | S32100 | 1.4541 |
| ASTM A632 321H | S32109 | – |
| ASTM A632 347 | S34700 | 1.4550 |
| ASTM A632 348 | S34800 |
Dimensions of ASTM A632 Seamless and welded Stainless Steel Tubing
|
Ratio of Inside Diameter |
Minimum Expansion of |
|
to Outside Diameter |
Inside Diameter, % |
|
0.9 |
21 |
|
0.8 |
22 |
|
0.7 |
25 |
|
0.6 |
30 |
|
0.5 |
39 |
|
0.4 |
51 |
|
0.3 |
68 |
Chemical Composition Of ASTM A632
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Composition, % |
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Element |
Grade |
TP 304 |
TP 304L |
TP 310 |
TP 316 |
TP 316L |
TP 317 |
TP 321 |
TP 347 |
TP 348 |
|
UNS |
S30400 |
S30403 |
S31000 |
S31600 |
S31603 |
S31700 |
S32100 |
S34700 |
S34800 |
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DesignationA |
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Carbon, max |
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0.08 |
0.030 |
0.15 |
0.08 |
0.030 |
0.08 |
0.08 |
0.08 |
0.08 |
|
Manganese max |
|
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
2.00 |
|
Phosphorus, max |
|
0.045 |
0.045 |
0.045 |
0.045 |
0.045 |
0.045 |
0.045 |
0.045 |
0.045 |
|
Sulfur, max |
|
0.030 |
0.030 |
0.030 |
0.030 |
0.030 |
0.030 |
0.030 |
0.030 |
0.030 |
|
Silicon, max |
|
0.75 |
0.75 |
0.75 |
0.75 |
0.75B |
0.75 |
0.75 |
0.75 |
0.75 |
|
Nickel |
|
8.0±11.0 |
8.0±13.0 |
19.0±22.0 |
11.0±14.0C |
10.0±15.0 |
11.0±14.0 |
9.0±13.0 |
9.0±13.0 |
9.0±13.0 |
|
Chromium |
|
18.0±20.0 |
18.0±20.0 |
24.0±26.0 |
16.0±18.0 |
16.0±18.0 |
18.0±20.0 |
17.0±20.0 |
17.0±20.0 |
17.0±20.0 |
|
Molybdenum |
|
… |
… |
… |
2.00±3.00 |
2.00±3.00 |
3.00±4.00 … |
… |
… |
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Titanium |
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… |
… |
… |
… |
… |
… |
D |
… |
… |
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Columbium + tantalum |
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… |
… |
… |
… |
… |
… |
… |
E |
E |
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Tantalum, max |
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… |
… |
… |
… |
… |
… |
… |
… |
0.10 |
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ASTM A632 Mechanical Properties
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Tensile strength, min, ksi (MPa) |
75A (515)A |
|
Yield strength, min, ksi (MPa) |
30A,B (205)A,B |
|
Elongation in 2 in. or 50 mm, min, % |
35B |
Permissible Variations in ASTM A632 SS Welded Tube Dimensions
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Outside Diameter Range
|
Outside Diameter,in. (mm) |
Inside Diameter,in. (mm) |
Wall,plus and minus, %
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Up to, but not including 3¤32 |
+0.002 (0.05) |
+0.000 |
10 |
|
(0.094) in. (2.38 mm) |
−0.000 |
−0.002 (0.05) |
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3¤32 (0.094) in. (2.38 mm) but |
+0.003 (0.08) |
+0.000 |
10 |
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−0.000 |
−0.003 (0.08) |
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not including 3¤16(0.188) |
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in. (4.76 mm) |
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3¤16 to, but not including, 1¤2 |
+0.004 (0.10) |
+0.000 |
10 |
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(0.500) in. (12.70 mm) |
−0.000 |
−0.004 (0.10) |
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