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 | - | - | ||
| 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) |
|---|---|---|---|---|---|---|
| 438 (≥) | 758 (≥) | 32 | 44 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 143 |
| 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 |
|---|---|---|---|---|---|---|---|
| 421 (≥) | 766 (≥) | 23 | 24 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 311 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 651 | 628 | 997 |
We can customize the production of S44020 grade, contact us for the best solution.
–sales@specificsteel.com