Carbon Steel Heat Exchanger Tubes , DIN17175 Steam Boiler Seamless Steel Tubes
Seamless Steam Boiler Steel Tubes DIN17175 Pressure Vessels and Boilers
Seamless steel tubes for pressure purposes-Technical delivery conditions
Non-alloy steel tubes with specified elevated temperature properties
Applications: for pipelines of boilers industry, vessel equipment
Size range: O.D.:6-323mm W.T.:1-30mm L: according to customer requirement
Chemical composition
| Chemical composition | |||||||||
| Steel grade | C | Si | Mn | P | S | Cr | Mo | ||
| Steel name |
|
|
| max | max |
|
| ||
| St35.8 | 0.17 | 0.10-0.35 | 0.40-0.80 | 0.003 | 0.003 | / | / | ||
| St45.8 | 0.21 | 0.10-0.35 | 0.40-1.20 | 0.003 | 0.003 | / | / | ||
| 15Mo3 | 0.12-0.20 | 0.10-0.35 | 0.40-0.80 | 0.003 | 0.003 | / | 0.25-0.35 | ||
| Note: Special steel grade is also available, according to customer request. | |||||||||
| Mechanical properties | |||
| Steel Grade | Tensile properties | Tensile | Elongation A min.% |
| Mpa | Mpa | ||
| St35.8 | ≥235 | 350-480 | ≥25 |
| St45.8 | ≥255 | 410-530 | ≥21 |
| 15Mo3 | ≥270 | 460-600 | ≥20 |
"Other Steel Grade:
14CrMo44, 10CrMo910, 14MoV63, X20CrMoV121"
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