Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels - Special Steels | SUS420F | Martensite | Japan - JIS , G 4318 (2007) - Cold finished stainless steel bars |
Chemical composition(wt.%) of SUS 420F grade: G 4318 (2007)
Elements Min.(≥) Max.(≤) C 0.26 0.40 Si - 1.00 Mn - 1.00 P - 0.06 S - 0.15 Cr 12.00 14.00 Ni - 0.60 Mo - 0.60 N - -
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) |
---|---|---|---|---|---|---|
597 (≥) | 442 (≥) | 42 | 31 | 11 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 443 |
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 |
---|---|---|---|---|---|---|---|
463 (≥) | 242 (≥) | 14 | 32 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 244 | |
Temp. °C/°F | Creep strain limit (10000h) (Rp1,0) N/mm2 | Creep rupture strength (10000h) (Rp1,0) N/mm2 | |||||
638 | 729 | 659 |
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