Steel 40KHN2L
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | 40ХН2Л |
| Designation GOST Latin | 40XH2L |
| Transliteration | 40HN2L |
| By chemical elements | 40CrН2 |
Description
40KHN2L steel is used: for the manufacture of castings to various industrial purpose.
Standards
| Name | Code | Standards |
|---|---|---|
| Steel castings | В82 | GOST 977-88 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe |
|---|---|---|---|---|---|---|---|---|
| GOST 977-88 | 0.35-0.45 | ≤0.045 | ≤0.045 | 0.6-0.9 | 0.4-0.7 | 0.2-0.5 | 1.6-2 | Rest |
Fe is the basis.
Mechanical properties
| Section, mm | sT|s0,2, MPa | σU, MPa | d | y, % | KCU, kJ/m2 |
|---|---|---|---|---|---|
| Annealing in air from 830-870 °C + vacation at 550-650 °C, air cooling | |||||
| 100 | ≥540 | ≥785 | ≥12 | ≥20 | ≥334 |
| Normalization at 860-900 °C + vacation at 550-650 °C, air cooling | |||||
| 100 | ≥373 | ≥638 | ≥15 | ≥25 | ≥285 |
Description mechanical marks
| Name | Description |
|---|---|
| sT|s0,2 | Yield strength or limit of proportionality with a tolerance for residual deformation of 0.2% |
| σU | Limit short-term strength |
| d | Elongation after rupture |
| y | The relative narrowing |
| KCU | Toughness |
