ASTM A632 Stainless Steel Seamless Tube




ASTM A632 Seamless and Welded Austenitic Stainless Steel Tubing

ASTM A632 Seamless and Welded Austenitic Stainless Steel Tubing Manufacturer in India

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

 

 

 

 

 

Composition, %

 

 

 

 

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

 

DesignationA

Carbon, max

 

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   …

Titanium

 

D

 

 

Columbium + tantalum

 

E

E

 

 

 

Tantalum, max

 

0.10

 

 

 

 

 

 

 

 

 

 

 

ASTM A632 Mechanical Properties

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

Outside Diameter Range

 

Outside Diameter,in. (mm)

Inside Diameter,in. (mm)

Wall,plus and minus, %

 

   

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)

 

3¤32 (0.094) in. (2.38 mm) but

+0.003 (0.08)

+0.000

10

 

−0.000

−0.003 (0.08)

 

not including 3¤16(0.188)

 

 

 

in. (4.76 mm)

 

 

 

3¤16 to, but not including, 1¤2

+0.004 (0.10)

+0.000

10

(0.500) in. (12.70 mm)

−0.000

−0.004 (0.10)

 

 

 

 

 

Top