ASTM A53 specification also covers seamless steel pipe. The pipe is intended for pressure and mechanical applications and is also acceptable for ordinary uses in oil, gas, steam, water and air lines. It is suitable for welding, bending and flanging.
Available size for Sch40 pipe
| Size | Thickness (mm) | Test pressure (MPa) | Ref. No. |
|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 2.77 | 4.8 | P1201 (UL) |
| 3/4″ / DN20 / 26.7mm | 2.87 | 4.8 | P1202 (UL) |
| 1″ / DN25 / 33.4mm | 3.38 | 4.8 | P1203 (UL) |
| 1-1/4″ / DN32 / 42.2mm | 3.56 | 9 | P1204 (UL) |
| 1-1/2″ / DN40 / 48.3mm | 3.68 | 9 | P1205 (UL) |
| 2″ / DN50 / 60.3mm | 3.91 | 17.2 | P1206 (UL) |
| 2-1/2″ / DN65 / 73.0mm | 5.16 | 17.2 | P1207 (UL) |
| 3″ / DN80 / 88.9mm | 5.49 | 17.2 | P1208 (UL) |
| 4″ / DN100 / 114.3mm | 6.02 | 15.2 | P1209 (UL) |
| 5″ / DN125 / 141.3mm | 6.55 | 13.4 | P1210 (UL) |
| 6″ / DN150 / 168.3mm | 7.11 | 12.3 | P1211 (UL) |
| 8″ / DN200 / 219.1mm | 8.18 | 10.8 | P1212 (UL) |
| 10″ / DN250 / 273.0mm | 9.27 | 9.9 | P1213 (UL) |
| 12″ / DN300 / 323.8mm | 10.31 | 9.2 | P1214 (UL) |
| 14″ / DN350 / 355.6mm | 11.13 | 9.0 | P1215 (UL) |
| 16″ / DN400 / 406.4mm | 12.7 | 9.0 | P1216 (ISO) |
| 18″ / DN450 / 457.0mm | 14.27 | 9.0 | P1217 (ISO) |
| 20″ / DN500 / 508.0mm | 15.09 | 8.6 | P1218 (ISO) |
| 24″ / DN600 / 610.0mm | 17.48 | 8.3 | P1220 (ISO) |
Available size for Sch80 pipe
| Size | Thickness (mm) | Test pressure (MPa) | Ref. No. |
|---|---|---|---|
| 1/2″ / DN15 / 21.3mm | 3.73 | 5.9 | P1221 (ISO) |
| 3/4″ / DN20 / 26.7mm | 3.91 | 5.9 | P1222 (ISO) |
| 1″ / DN25 / 33.4mm | 4.55 | 5.9 | P1223 (UL) |
| 1-1/4″ / DN32 / 42.2mm | 4.85 | 13.1 | P1224 (UL) |
| 1-1/2″ / DN40 / 48.3mm | 5.08 | 13.1 | P1225 (UL) |
| 2″ / DN50 / 60.3mm | 5.54 | 17.2 | P1226 (UL) |
| 2-1/2″ / DN65 / 73.0mm | 7.01 | 17.2 | P1227 (UL) |
| 3″ / DN80 / 88.9mm | 7.62 | 17.2 | P1228 (UL) |
| 4″ / DN100 / 114.3mm | 8.56 | 19.3 | P1229 (UL) |
| 5″ / DN125 / 141.3mm | 9.53 | 19.3 | P1230 (UL) |
| 6″ / DN150 / 168.3mm | 10.97 | 18.9 | P1231 (UL) |
| 8″ / DN200 / 219.1mm | 12.7 | 16.8 | P1232 (UL) |
| 10″ / DN250 / 273.0mm | 15.09 | 16 | P1233 (ISO) |
| 12″ / DN300 / 323.8mm | 17.48 | 15.7 | P1234 (ISO) |
| 14″ / DN350 / 355.6mm | 19.05 | 15.5 | P1235 (ISO) |
| 16″ / DN400 / 406.4mm | 21.44 | 15.3 | P1236 (ISO) |
| 18″ / DN450 / 457.0mm | 23.83 | 15.1 | P1237 (ISO) |
| 20″ / DN500 / 508.0mm | 26.19 | 15.0 | P1238 (ISO) |
| 22″ / DN550 / 559.0mm | 28.58 | 14.7 | P1239 (ISO) |
| 24″ / DN600 / 610.0mm | 30.96 | 14.7 | P1240 (ISO) |
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