Steel AS40
Designation
| Name | The value |
|---|---|
| Designation GOST Cyrillic | АС40 |
| Designation GOST Latin | AC40 |
| Transliteration | AS40 |
| By chemical elements | - |
Description
Steel AS40 used: for the manufacture of hammer stamps, bandages and matrices.
Note
Lead-carbon steel high machinability.
Standards
| Name | Code | Standards |
|---|---|---|
| Bars and shapes | В32 | GOST 1414-75, GOST 14955-77 |
Chemical composition
| Standard | C | S | P | Mn | Cr | Si | Ni | Fe | Cu | Pb |
|---|---|---|---|---|---|---|---|---|---|---|
| GOST 1414-75 | 0.37-0.45 | ≤0.04 | ≤0.04 | 0.5-0.8 | ≤0.25 | 0.17-0.37 | ≤0.25 | Rest | ≤0.25 | 0.15-0.3 |
Fe is the basis.
In accordance with GOST 1414-75, by agreement with the consumer, replacement of lead with selenium is allowed. In this case, the amount of selenium should be 2.5 times less than that of lead.
In accordance with GOST 1414-75, by agreement with the consumer, replacement of lead with selenium is allowed. In this case, the amount of selenium should be 2.5 times less than that of lead.
Mechanical properties
| Section, mm | sT|s0,2, MPa | σU, MPa | d5, % | HB, MPa |
|---|---|---|---|---|
| Bars up to 100 mm. Normalization | ||||
| 25 | ≥335 | ≥570 | ≥19 | ≤187 |
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 |
| d5 | Elongation after rupture |
| HB | Brinell hardness number |
