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KS STS420J2 Details
KS STS420J2 Standard Download
Category | Type | Grade | Microstructure | Designations |
---|---|---|---|---|
Grades | Stainless Steels | STS420J2 | Martensite | Korea - KS , D 3692 (2001) - Cold finished stainless steel bars D 3698 (2008) - Cold rolled stainless steel plates, sheets and strip D 3702 (2008) - Stainless steel wire rods D 3703 (2007) - Stainless steel wires D 3705 (2008) - Hot rolled stainless steel plates, sheets and strip D 3706 (2008) - Stainless steel bars D 3534 (2002) - Cold rolled stainless steel strip for springs |
Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
---|---|---|---|---|
C | 0.26 | 0.40 | ||
Si | - | 1.00 | ||
Mn | - | 1.00 | ||
P | - | 0.040 | ||
S | - | 0.030 | ||
Cr | 12.00 | 14.00 | ||
Ni | - | 0.60 | ||
Mo | - | - | ||
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) |
---|---|---|---|---|---|---|
111 (≥) | 757 (≥) | 32 | 34 | 44 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 441 |
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 |
---|---|---|---|---|---|---|---|
525 (≥) | 755 (≥) | 34 | 31 | 42 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 413 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
545 | 982 | 131 |
Product type | Products | Dimension | Processes | Deliver Status |
---|---|---|---|---|
Plates / Sheets | Plates / Sheets | 0.08-200mm(T)*W*L | Forging, hot rolling and cold rolling | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Steel Bar | Round Bar, Flat Bar, Square Bar | Φ8-1200mm*L | Forging, hot rolling and cold rolling, Cast | Black, Rough Turning, Shot Blasting, |
Coil / Strip | Steel Coil /Steel Strip | 0.03-16.0x1200mm | Cold-Rolled & Hot-Rolled | Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting |
Pipes / Tubes | Seamless Pipes/Tubes, Welded Pipes/Tubes | OD:6-219mm x WT:0.5-20.0mm | Hot extrusion, Cold Drawn, Welded | Annealed, Solution and Aging, Q+T, ACID-WASHED |
Grade | Standard | Country | Application |
---|---|---|---|
STS420J2 | KS | Korea | Stainless steel bars |
STS420J2TKA | KS | Korea | Stainless steel pipes for machine and structural purposes |
STS420J2FB | KS | Korea | Stainless steel blooms and billets for forgings |