Chemical compositions of SAE wrought stainless steels
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.12 | ||
| Si | 0.30 | 1.00 | ||
| Mn | 14.5 | 16.0 | ||
| P | - | 0.045 | ||
| S | - | 0.03 | ||
| Cr | 17.0 | 18.5 | ||
| Ni | - | 1.00 | ||
| N | - | 0.35 |
S21400
| 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) |
|---|---|---|---|---|---|---|
| 479 (≥) | 187 (≥) | 12 | 43 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 421 |
| 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 |
|---|---|---|---|---|---|---|---|
| 323 (≥) | 554 (≥) | 12 | 23 | 14 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 142 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 441 | 361 | 552 |
We can customize the production of S21400 grade, contact us for the best solution.
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