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Steel Pipe ASTM A 268/A 268M-03

Steel Pipe ASTM A 268 A 268M 03
  • Material: 304, 304L, 310, 321, 316, 316L, 403 L
  • Standard: Pipes / Tubes ASTM
  • Pressure: SCH5, SCH10, SCH20, SCH30, SCH40, SCH60, SCH80, SCH100, SCH120, SCH160, XXS
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Description

ASTM A 268/A 268M-03 steel pipe is a type of stainless steel pipe manufactured according to ASTM A 268/A 268M-03 standard. This standard applies to seamless or welded steel pipes used in high temperature and corrosive environment applications.

Applications

Steel Pipe ASTM A 268/A 268M-03 is commonly used in industries such as:

  • Chemical industry
  • Oil and gas industry
  • Food and beverage industry
  • Pulp and paper industry
  • Applications requiring high strength and corrosion resistance.

Standards

ASTM A 268/A 268M-03 covers the technical and material requirements for stainless steel pipe, including:

  • Dimensions and tolerances
  • Mechanical properties (tensile strength, elongation, hardness)
  • Chemical properties (content of alloying elements such as Cr, Ni, Mo, C)
  • Inspection and testing procedures (non-destructive testing, pressure testing, dimensional testing)
  • Regulations on packaging, labeling and transportation.

The table below shows the corresponding thickness and weight for different SCH grades:

Size (inch) Outside Diameter (mm) Wall Thickness SCH 10 (mm) Weight SCH 10 (kg/m) Wall Thickness SCH 20 (mm) Weight SCH 20 (kg/m) Wall Thickness SCH 40 (mm) Weight SCH 40 (kg/m)
1/8 10.3 1.24 0.292 1.73 0.399 1.73 0.399
1/4 13.7 1.65 0.506 2.24 0.669 2.24 0.669
3/8 17.1 1.65 0.639 2.31 0.890 2.31 0.890
1/2 21.3 1.65 0.820 2.77 1.338 2.77 1.338
3/4 26.7 1.65 1.048 2.87 1.822 2.87 1.822
1 33.4 2.77 2.256 3.38 2.722 3.38 2.722
1 1/4 42.2 2.77 2.876 3.56 3.796 3.56 3.796
1 1/2 48.3 2.77 3.317 3.68 4.498 3.68 4.498
2 60.3 2.77 4.152 3.91 6.028 3.91 6.028
2 1/2 73.0 3.05 6.315 5.16 10.685 5.16 10.685
3 88.9 3.05 7.732 5.49 13.825 5.49 13.825
4 114.3 3.05 10.065 6.02 19.905 6.02 19.905
5 141.3 3.40 14.203 6.55 26.864 6.55 26.864
6 168.3 3.40 16.957 7.11 34.238 7.11 34.238
8 219.1 4.19 26.701 8.18 53.984 8.18 53.984
10 273.0 4.78 38.548 9.27 76.120 9.27 76.120
12 323.8 4.78 45.988 10.31 94.225 10.31 94.225
14 355.6 6.35 72.672 11.13 123.300 11.13 123.300
16 406.4 6.35 83.410 12.70 155.866 12.70 155.866
18 457.2 6.35 94.148 14.27 183.421 14.27 183.421
20 508.0 6.35 104.885 15.09 222.730 15.09 222.730
22 558.8 6.35 115.623 16.66 250.133 16.66 250.133
24 609.6 6.35 126.361 17.12 289.150 17.12 289.150
26 660.4 6.35 137.098 18.26 320.526 18.26 320.526

Next SCH classes:

Size (inch) Outside Diameter (mm) Wall Thickness SCH 80 (mm) Weight SCH 80 (kg/m) Wall Thickness SCH 160 (mm) Weight SCH 160 (kg/m)
1/8 10.3 2.41 0.469 3.73 0.604
1/4 13.7 3.02 0.795 4.78 1.051
3/8 17.1 3.20 1.097 4.78 1.452
1/2 21.3 3.73 1.616 5.56 2.158
3/4 26.7 3.91 2.197 6.35 3.187
1 33.4 4.55 3.237 7.62 4.844
1 1/4 42.2 4.85 4.467 8.56 7.101
1 1/2 48.3 5.08 5.414 9.53 9.111
2 60.3 5.54 7.481 11.07 13.439
2 1/2 73.0 7.01 11.407 12.70 18.885
3 88.9 7.62 15.273 14.27 26.262
4 114.3 8.56 22.321 17.12 41.027
5 141.3 9.53 30.967 19.05 57.430
6 168.3 10.97 42.561 21.95 79.217
8 219.1 12.70 64.641 25.40 121.327
10 273.0 15.09 95.973 28.58 172.263
12 323.8 17.48 132.041 33.32 238.679
14 355.6 19.05 158.102 36.53 287.428
16 406.4 21.95 208.098 40.49 365.355
18 457.2 23.83 254.669 44.45 452.431
20 508.0 26.19 311.175 47.63 540.730
22 558.8 28.58 373.690 52.37 654.026
24 609.6 30.96 441.776 55.55 758.973
26 660.4 33.32 515.254 59.54 882.217

Pressure

  • Pipe types : Can include seamless and welded pipes.
  • Working Pressure : Depending on the size and thickness of the pipe, working pressure can range from several hundred to thousands of psi.

Material

Steel Pipe ASTM A 268/A 268M-03 is made from stainless steels such as:

  • Ferritic stainless steel : 409, 430, 439, 444
  • Martensitic stainless steel : 403, 410, 416, 420
  • Austenitic stainless steels : 304, 316 (although less common in this standard)

ASTM A 268/A 268M-03 provides detailed specifications to ensure that steel pipe meets performance and strength requirements for various industrial applications.

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