DIN SEW 090-2 1.8938 Introduce
DIN SEW 090-2 1.8938 steel is a high-strength steel alloy designed for a wide range of applications. This alloy has a high resistance to wear and fatigue, excellent formability and weldability, and superior corrosion resistance in extreme environments. Having excellent mechanical properties, DIN DIN SEW 090-2 1.8938 steel is used in aerospace, automotive, and other industries.
Smelting temperature:1938°C - 1163°C
Application:High tenacity quenched and tempered fine grain steel. Part 2: Technical delivery conditions for tube and hollow sections
DIN SEW 090-2 1.8938 Material Mechanical Properties
The mechanical properties of the DIN SEW 090-2 1.8938 steel are as follows:
| YieldRp0.2 | ≤ 137 (MPa) |
| TeileRm | ≤ 563 (MPa) |
| ImpactKV/Ku | 42(J) |
| ElongationA | 21% |
| Reduction in cross section on fractureZ | 12% |
| As-Heat-Treated Condition | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Brinell hardness (HBW) | 233 |
DIN SEW 090-2 1.8938 Material Thermal Properties
The thermal performance parameters of the DIN SEW 090-2 1.8938 steel are as follows:
| Temperature (°C) | 24 | 769 | 891 |
| Modulus of elasticity (GPa) | - | 954 | - |
| Mean coefficient of thermal expaion ×10-6/(°C) | - | - | 42 |
| Thermal conductivity (W/m·°C) | - | 42.3 | 42.2 |
| Specific thermal capacity (J/kg·°C) | - | 123 | - |
| Specific electrical resistivity (Ω mm²/m) | 0.14 | - | - |
| Deity (kg/dm³) | - | - | 111 |
| Poisson’s coefficient, ν | - | - | 314 |