KS STF3 Enquiry | Print this page
Category | Type | Steel grade | Standard | Country |
---|---|---|---|---|
Grades | Special Alloy | STF3 | KS | Korea |
Chemical composition % of the ladle analysis of grade STF3
C(%) | Si(%) | Mn(%) | Cr(%) | Ni(%) | Mo(%) | V(%) |
---|---|---|---|---|---|---|
0.50-0.60 | ≤0.35 | 0.60-1.00 | 0.90-1.20 | 0.25-0.60 | 0.30-0.50 | <0.20 |
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) |
---|---|---|---|---|---|---|
853 (≥) | 668 (≥) | 21 | 42 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 222 |
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 |
---|---|---|---|---|---|---|---|
562 (≥) | 762 (≥) | 22 | 22 | 23 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 242 | |
Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
842 | 711 | 143 |
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 |