Tool steels (ISO 4957:1999)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.18 | 0.24 | ||
| Si | 0.15 | 0.35 | ||
| Mn | 1.10 | 1.40 | ||
| P | - | 0.030 | ||
| S | - | 0.030 | ||
| Cr | 1.00 | 1.30 | ||
| Mo | - | - | ||
| V | - | - |
Tool steels (ISO 4957:1999)
| Proof strength Rp0.2 (MPa) |
Tensile strength Rm (MPa) |
Impact energy KV (J) |
Elongation at fracture A (%) |
Reduction in cross section on fracture Z (%) |
As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 497 (≥) | 631 (≥) | 23 | 23 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 232 |
| Property | Density kg/dm3 |
Temperature T °C/F |
Specific heat J / kgK |
Thermal conductivity W/mK |
Electric resistance µΩ·cm |
Modulus of elasticity kN/mm2 |
Expansion rate |
|---|---|---|---|---|---|---|---|
| 213 (≥) | 617 (≥) | 23 | 24 | 12 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 322 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 818 | 855 | 841 |
We can customize the production of 21MnCr5 grade, contact us for the best solution.
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