What is the material of JIS G3456
JIS G3456 is a carbon steel pipe for high-temperature equipment made of the following materials:
Standard Name: JIS G3456
Publication history: The latest version is JIS G3456:2024.
Material Classification: It belongs to the category H48, i.e. steel pipes and cast iron pipes, and is also classified under 23.040.10 (Iron and steel pipes) and 77.140.10 (Heat-treated steel).
This type of steel pipe is mainly used in high temperature environments, such as in steam or hot water systems, and is suitable for conditions ranging from low to medium pressures.
JIS G3456 carbon steel pipe contains three grades: STPT370, STPT410, STPT480.
STPT 370 Chemical composition (%)
| composition | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Min | - | 0.1 | 0.3 | - | - |
| Max | 0.25 | 0.35 | 0.9 | 0.035 | 0.035 |
STPT 410 Chemical composition (%)
| composition | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Min | - | 0.1 | 0.3 | - | - |
| Max | 0.3 | 0.35 | 1 | 0.035 | 0.035 |
STPT 480 Chemical composition (%)
| composition | C | Si | Mn | P | S |
|---|---|---|---|---|---|
| Min | - | 0.1 | 0.3 | - | - |
| Max | 0.33 | 0.35 | 1 | 0.035 | 0.035 |
