France AFNOR NF A 32-056, Z8CN25-20M Specialsteel Foundry products. Austenitic and austeno-ferritic stainless cast steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Standard | Country | Application |
|---|---|---|---|---|---|
| Steel Grades | Specialsteel | Z8CN25-20M | AFNOR | France | Foundry products. Austenitic and austeno-ferritic stainless cast steel |
| C | Si | Mn | P | S | Cr | Mo | Ni |
|---|---|---|---|---|---|---|---|
| ≤0.080 | ≤0.75 | ≤2.00 | ≤0.040 | ≤0.015 | 24.00 -26.00 | ≤ ≥ | 19.00 -21.00 |
| Yield Rp0.2 (MPa) |
Tensile Rm (MPa) |
Impact KV/Ku (J) |
Elongation A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 363 (≥) | 192 (≥) | 33 | 44 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 322 |
| Temperature (°C) |
Modulus of elasticity (GPa) |
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C) |
Specific thermal capacity (J/kg·°C) |
Specific electrical resistivity (Ω mm²/m) |
Density (kg/dm³) |
Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 31 | - | - | 0.31 | - | |||
| 989 | 654 | - | 44.3 | 123 | - | ||
| 166 | - | 21 | 12.2 | 324 | 113 |
Heat treated : 1273°C - 1627°C
| NF A 32-056 | Foundry products. Austenitic and austeno-ferritic stainless cast steel | NF-A-32-056.pdf |
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