- 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 |
---|
CIS, Russia, Ukraine |
38HM |
Standards
Standard | Description |
---|---|
Standard | Description |
EN 1008З-1 | |
EN 10132-3 |
Description of chemical elements
Description of mechanical properties
Parameter | Units of measurement | Description |
---|---|---|
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 |
---|---|---|
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 |