1 / 5
Seamless steel pipe with hollow section is extensively used for conveying fluid pipelines, such as oil, natural gas, gas, water, and some solid material pipelines.
Compared to solid steel like round steel, seamless steel pipe is lighter in weight while maintaining the same bending and torsional strength. It is an economic cross-section steel widely used in the manufacture of structural and mechanical parts, such as petroleum drill pipes, auto transmission shafts, bicycle frames, and steel scaffolding used in construction. Its use improves material utilization, simplifies manufacturing processes, and saves material and processing time.
ASTM Standards for Seamless Steel Pipe
| Executive Standard | Grade / Material | Product Name |
|---|---|---|
| ASTM A53 | A, B | Black and Hot-Dipped Zinc-Coated Steel Pipes Welded and Seamless |
| ASTM A106 | A, B | Seamless Carbon Steel for High Temperature Service |
| ASTM A179 | Low Carbon Steel | Seamless Cold-Drawn Heat Exchanger and Condenser Tubes |
| ASTM A192 | Low Carbon Steel | Seamless Carbon Steel Boiler Tubes for High Pressure |
| ASTM A210 | A1, C | Seamless Medium-Carbon and Alloy Steel Boiler and Superheater Tubes |
| ASTM A213 | T5, T11, T12, T22, TP 347H | Seamless Ferritic and Austenitic Alloy Steel Boiler and Heat Exchanger Tubes |
| ASTM A312 | TP304/304L, TP316/316L | Seamless Steel Pipe for Stainless Materials |
| ASTM A333 | Gr.6 | Seamless and Welded Steel Pipe for Low-Temperature Service |
| ASTM A335 | P9, P11, P22 | Seamless Ferritic Alloy Steel Pipe for High-Temperature Service |
| ASTM A519 | 4130, 4140 | Seamless Carbon and Alloy Steel for Mechanical Tubing |
API Standards for Seamless Steel Pipe
| Executive Standard | Grade / Material | Product Name |
|---|---|---|
| API Spec 5CT | J55, K55, N80, L80, C90, C95, T95, P110, M65 | Specification for Casing and Tubing |
| API Spec 5L PSL1 / PSL2 | A, B, X42, X46, X52, X56, X60, X65, X70 | Specification for Line Pipe |
| Standard | Grade | C | Mn | P | S | Tensile (min) | Yield (min) |
|---|---|---|---|---|---|---|---|
| API 5L PSL1 | B | 0.28 | 1.20 | 0.030 | 0.030 | 414 Mpa | 241 Mpa |
| API 5L PSL1 | X42 | 0.28 | 1.30 | 0.030 | 0.030 | 414 Mpa | 290 Mpa |
| API 5L PSL1 | X52 | 0.28 | 1.40 | 0.030 | 0.030 | 455 Mpa | 359 Mpa |
| API 5L PSL1 | X60 | 0.28 | 1.40 | 0.030 | 0.030 | 517 Mpa | 414 Mpa |
| API 5L PSL1 | X70 | 0.28 | 1.40 | 0.030 | 0.030 | 565 Mpa | 483 Mpa |