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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.


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ASTM A312 TP304L Austenitic Stainless Steel Pipes for Seamless, Welded, and Heavily Cold Worked


ASTM A312 TP304L Stainless Steel for Seamless, Welded, and Heavily Cold Worked Austenitic Stainless Steel Pipes 1.1 This specification2 covers seamless, straight-seam welded, and heavily cold worked welded austenitic stainless steel pipe intended for high-temperature and general corrosive service.

Grade

 

Tensile Strength (MPa)

 

Yield Strength 0.2% Proof (MPa)

 

Elongation (% in 50mm)

 

Hardness

Rockwell (HR B)

Brinell (HB)

304

515

205

40

92

201

304L

485

170

40

92

201

304H

515

205

40

92

201

ASTM A312 TP304L Stainless Steel for Seamless pipes

ASTM A312 TP304L Stainless Steel for Seamless pipes


NPS Outside Diameter Nominal Wall Thickness
    Sch5s Sch10s Sch40s Sch80s
1/8″ 10.3 1.24 1.73 2.41
1/4″ 13.7 1.65 2.24 3.02
3/8″ 17.1 1.65 2.31 3.2
1/2″ 21.3 1.65 2.11 2.77 3.73
3/4″ 26.7 1.65 2.11 2.87 3.91
1″ 33.4 1.65 2.77 3.38 4.55
11/4″ 42.2 1.65 2.77 3.56 4.85
11/2″ 48.3 1.65 2.77 3.68 5.08
2″ 60.3 1.65 2.77 3.91 5.54
21/2″ 73 2.11 3.05 5.16 7.01
3″ 88.9 2.11 3.05 5.49 7.62
31/2″ 101.6 2.11 3.05 5.74 8.08
4″ 114.3 2.11 3.05 6.02 8.56
5″ 141.3 2.77 3.4 6.55 9.53
6″ 168.3 2.77 3.4 7.11 10.97
8″ 219.1 2.77 3.76 8.18 12.7
10″ 273 3.4 4.19 9.27 12.7
12″ 323.9 3.96 4.57 9.53 12.7
14″ 355.6 3.96 4.78
16″ 406.4 4.19 4.78
18″ 457 4.19 4.78
20″ 508 4.78 5.54
22″ 559 4.78 5.54
24″ 610 5.54 6.35
30″ 762 6.35 7.92

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