Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.15 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.04 | ||
| S | 0.12 | 0.25 | ||
| Cr | 17.0 | 19.0 | ||
| Ni | 8.00 | 10.0 | ||
| Mo | - | 0.60 | ||
| Pb | 0.12 | 0.30 |
Steel, Corrosion-Resistant, Bars, Wire, and Forgings 18Cr - 9Ni - 0.21Pb (303Pb) Free-Machining, Solution Heat Treated
| 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) |
|---|---|---|---|---|---|---|
| 556 (≥) | 171 (≥) | 33 | 31 | 32 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 312 |
| 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 |
|---|---|---|---|---|---|---|---|
| 142 (≥) | 472 (≥) | 41 | 13 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 131 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 953 | 377 | 278 |
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