Germany · DIN
60 SiCr 7
DIN 17221:1988 — DIN 17221
Chemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.57 | 0.65 | ||
| Cr | 0.2 | 0.4 | ||
| Mn | 0.7 | 1 | ||
| P | 0.03 | |||
| S | 0.03 | |||
| Si | 1.5 | 1.8 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| +C | HB ≤280 | |||||
| +G | HB ≤248 | |||||
| +GKZ | HB ≤230 |
Heat treatment
| Type | 1 |
|---|---|
| Heat-treatment curve | Hardness-Tempering |
| Heat-treatment curve | TTT |
| Heat-treatment curve | CCT |
| Heat-treatment curve | 淬透性 |
| Heat-treatment curve | Tempered |