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EN10216-2 / DIN17175 Heat Resistant Seamless Steel Pipe Grade ST35 ST45 ST52
DIN 17175 seamless boiler tubes are widely used in petroleum, boiler industry, heat preservation, chemical fiber, chemical industry, medicine, machinery, paper, mechanical equipment, refrigeration, food, electricity, water, aerospace, construction, aviation, marine, shipbuilding, environmental protection and boiler heat exchanger tubes.
DIN 17175 Seamless boiler tubes in the same way used for producing storage tanks of heat-resistant steels used in tool making and boiler making industries and for constructing pressure reservoirs.
Specifications:
Grade and Chemical Composition ( ％ ) and mechanical property
Standard | Grade |
|
| ||||||||
C | Si | Mn | P≤ | S≤ | Cr | Mo | Tensile Strength ( MPa ) | Yield Strength ( MPa ) | Elongation (%) | ||
DIN17175 | St35.8 | ≤ 0.17 | 0.10~ | 0.40~ | 0.030 | 0.030 | / | / | 360~480 | ≥ 235 | ≥ 25 |
St45.8 | ≤ 0.21 | 0.10~ | 0.40~ | 0.030 | 0.030 | / | / | 410~530 | ≥ 255 | ≥ 21 | |
15Mo3 | 0.12~ | 0.10 | 0.40~ | 0.030 | 0.030 | / | 0.25~ | 460~600 | ≥ 270 | ≥ 20 | |
