United States · ACI
CN7MS
-- — -
Chemical composition
wt% · log scale- min – max range
- typical value
Mechanical properties
value range by conditionChemical composition
| Element | min | max | Similar | Remarks |
|---|---|---|---|---|
| C | 0.07 | |||
| Cr | 18 | 20 | ||
| Cu | 1.5 | 2 | ||
| Mn | 1 | |||
| Mo | 2.5 | 3 | ||
| Ni | 22 | 25 | ||
| P | 0.04 | |||
| S | 0.03 | |||
| Si | 2.5 | 3.5 |
Mechanical properties
| Heat treatment / condition | Yield strength | Tensile strength | Elongation | Reduction of area | Impact energy | Hardness |
|---|---|---|---|---|---|---|
| castings | ≥205 | ≥485 | ≥35 Lo=50mm;Amin=8% in Lo=25mm |