Martensitic Chromium Free Machining Stainless Steel
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | 0.95 | 1.20 | ||
| Mn | - | 1.25 | ||
| Si | - | 1.00 | ||
| P | - | 0.04 | ||
| S | 0.10 | 0.35 | ||
| Cr | 16.00 | 18.00 | ||
| Ni | - | 0.75 | ||
| Mo | 0.40 | 0.60 | ||
| N | - | 0.08 |
Martensitic Chromium Free Machining Stainless Steel
| 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) |
|---|---|---|---|---|---|---|
| 287 (≥) | 786 (≥) | 44 | 41 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 |
| 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 |
|---|---|---|---|---|---|---|---|
| 452 (≥) | 873 (≥) | 32 | 12 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 411 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 239 | 373 | 344 |
We can customize the production of S44020 grade, contact us for the best solution.
–sales@specificsteel.com