What is DIN 17175 St45.8
DIN 17175 St45.8 is a German standard (DIN) for seamless, non-alloy steel tubes used for elevated temperatures, featuring minimum yield strength of 255 MPa and tensile strength of 410-530 MPa,making it ideal for boilers, pressure vessels,and pipelines in high-heat industrial applications up to 600°C.
What is the chemical composition of ST45 8?
| Standard:DIN 17175 | grade | Chemical composition | |||||
| C | Si | Mn | P,S | Cr | Mo | ||
| St45.8 | ≤0.21 | 0.10-0.35 | 0.40-1.20 | ≤0.030 | / | / | |
What is the Mechanical property of DIN 17175 St45.8
| Standard | grade | Tensile Strength(MPa) | Yield Strength(MPa) | Elongation(%) |
| DIN 17175 | St45.8 | 410-530 | ≥255 | ≥21 |
Size:
Hot-rolled: OD:51-508 mm; WT: 7-60 mm; L: Max 16000 mm
Cold-Drawn: OD: 10-50 mm; WT: 2-10 mm; L: Max 16000 mm
Specifications in accordance with customer requirements.
Test and inspection

Packaging and shipping


