- Main
- Brand
- Germany
- 1.7000 - 1.7999 (Structural, Pressure Vessel and Engineering Steels)
- 1.7200 - 1.7299 (Cr-Mo with Mo < 0.35% , Cr-Mo-B)
1.7225 (42CrMo4)
Classification
Chemical composition
Information on suppliers
Mechanical properties at 20 °C
Brinell hardness number
Твёрдость по Викерсу
Technological Properties
Analogues
CIS, Russia, Ukraine |
---|
38HM |
Standards
Standard | Description |
---|---|
EN 1008З-1 | |
EN 10132-3 |
Description of chemical elements
Description of mechanical properties
Parameter | Units of measurement | Description |
---|---|---|
$$\sigma_{0.2}$$ | $$MPa$$ | Tensile stress required to produce a total elongation of 0.2% |
$$\sigma _{U}$$ | $$MPa$$ | Ultimate tensile strength |
$$\epsilon_L$$ | % | Elongation at break (longitudinal) |
$$\epsilon_{L (L_0 = 80 mm)}$$ | % | Elongation at break (longitudinal) (for L0 = 80 mm) |
$$\epsilon_{L (L_0 = 5.65\sqrt{S_o})}$$ | % | Elongation at break (longitudinal) (for L0 = 5.65√So) |
$$\epsilon_T$$ | % | Elongation at break (transverse) |
$$R_{eH}$$ | $$MPa$$ | Upper yield point |
$$\psi$$ | % | Reduction in cross section on fracture |
$$KV_{L}$$ | $$J$$ | Impact energy (longitudinal) |
$$KV_{T}$$ | $$J$$ | Impact energy (transverse) |
Designation of types of weldability
Parameter | Units of measurement | Description |
---|---|---|
no limits | Welding is performed without heating and without subsequent heat treatment | |
Boundedly welded | Welding is possible with heating up to 100–120 °C and subsequent heat treatment | |
Difficult to weld | For obtaining quality welded joints, additional operations are required: heating up to 200–300 °C for welding, heat treatment after welding — annealing | |
Not applicable for welded structures |