1. Basic properties
Standard system: ST35.8 is a carbon steel grade in the German Industrial Standard (DIN), belonging to the category of non-alloy steel.
Chemical composition: mainly low carbon (usually carbon content ≤ 0.17%), containing a small amount of manganese (Mn), silicon (Si) and other elements, sulphur (S), phosphorus (P) content is strictly limited to improve processing performance.
2. Application areas
Seamless steel pipe manufacturing: ST35.8 is mainly used in the production of seamless steel pipe, applicable to petroleum casing, fluid transport pipelines and other scenarios.
Industrial equipment: It can be processed into boiler tubes, mechanical structural parts, etc., and is suitable for pressure-bearing needs in medium and low temperature environments.
3. Performance characteristics
Mechanical properties:
| parameters | range |
|---|---|
| tensile strength(MPa) | 340~470 |
| yield strength(MPa) | ≥245 |
Process adaptability: good weldability, cold forming, suitable for stamping, welding and other processing technology.
4. Counterpart materials
Similar to ST37 (DIN standard), but the carbon content of ST35.8 is slightly lower, suitable for more demanding pressure resistance scenarios.
In summary, ST35.8 is the German standard for carbon.
ST35.8 is a German standard carbon steel, specialised in the manufacture of seamless steel pipes, widely used in the petroleum, machinery and other industries in the medium and low pressure needs.
