DIN 17155 13CrMo 4 4 steel grade is a kind of steel which with Cr., Mo.,Cr-Mo that mainly applied for high temperature and pressure vessels.The steel grade 13CrMo 4 4 is according to DIN 17155 standard which with the yield strength of 228MPa.
Applications
High-temperature structural steel: Collectors, water boiler and superheater tubes (530oC).
►Mechnical property for 13CrMo44 Boiler steel:
| Thickness (mm) | |||||
| 13CrMo44 | ≤ 16 | > 16 ≤ 40 | > 40 ≤ 60 | > 60 ≤ 100 | > 100 |
| Yield strength (≥Mpa) | 300 | 295 | 295 | 275 | 255 |
| ≤ 60 | > 60 ≤ 100 | > 100 | |||
| Tensile strength (Mpa) | 440-590 | 430-580 | 420-570 | ||
►Chemical composition for 13CrMo44 Boiler steel (Heat Analysis Max%)
| Main chemical elements composition of 13CrMo44 | |||||||
| C | Si | Mn | P | S | Cr | Cu | Mo |
| 0.08-0.18 | 0.10-0.35 | 0.40-1.00 | 0.035 | 0.030 | 0.70-1.10 | 0.30 | 0.40-0.60 |
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