ASTM A179/(ASME SA179)
High pressure boiler carbon steel seamless pipe
OD:6-273MM.W.T:1.24-15MM.LENGTH:12000MM MAX
Grade and Chemical Composition (%)
| Chemical | C | Mn | P≤ | S≤ | Si≤ |
| Composition | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 | 0.25 |
Tolerance(SA-450/SA-450M):
| OD In (mm) | + | - | WT In(mm) | + | - |
| <1(25.4) | 0.10 | 0.10 | ≤1.1/2(38.1) | 20% | 0 |
| 1~1.1/2(25.4~38.1) | 0.15 | 0.15 | >1.1/2(38.1) | 22% | 0 |
| >1.1/2~<2(38.1~50.8) | 0.20 | 0.20 | |||
| 2~<2.1/2(50.8~63.5) | 0.25 | 0.25 | |||
| 2.1/2~<3(63.5~76.2) | 0.30 | 0.30 | |||
| 3~4(76.2~101.6) | 0.38 | 0.38 | |||
| >4~7.1/2(101.6~190.5) | 0.38 | 0.64 | |||
| >7.1/2~9(190.5~228.6) | 0.38 | 1.14 |
ASTM A192/A192M-02
High pressure boiler carbon steel seamless pipe
OD:6-273MM,W.T:1.24-15MM.LENGTH:12000MM MAX
Grade and Chemical Composition (%)
| Chemical | C | Mn | P≤ | S≤ | Si≤ |
| Composition | 0.06-0.18 | 0.27-0.63 | 0.035 | 0.035 | 0.25 |
Tolerance(SA-450/SA-450M):
| OD In (mm) | + | - | WT In(mm) | + | - |
| <1(25.4) | 0.10 | 0.10 | ≤1.1/2(38.1) | 20% | 0 |
| 1~1.1/2(25.4~38.1) | 0.15 | 0.15 | >1.1/2(38.1) | 22% | 0 |
| >1.1/2~<2(38.1~50.8) | 0.20 | 0.20 | |||
| 2~<2.1/2(50.8~63.5) | 0.25 | 0.25 | |||
| 2.1/2~<3(63.5~76.2) | 0.30 | 0.30 | |||
| 3~4(76.2~101.6) | 0.38 | 0.38 | |||
| >4~7.1/2(101.6~190.5) | 0.38 | 0.64 | |||
| >7.1/2~9(190.5~228.6) | 0.38 | 1.14 |