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| Category | Type | Steel grade | Standard | Country |
|---|---|---|---|---|
| Grades | Special Alloy | STS3 | KS | Korea |
Chemical composition%of the ladle analysis of gradeSTS3
| C(％) | Si(％) | Mn(％) | Cr(％) | W(%) |
|---|---|---|---|---|
| 0.90-0.10 | ≤0.35 | 0.90-1.20 | 0.50-1.00 | 0.50-1.00 |
| 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) |
|---|---|---|---|---|---|---|
| 862(≥) | 649(≥) | 14 | 31 | 41 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 243 |
| 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 |
|---|---|---|---|---|---|---|---|
| 696(≥) | 776(≥) | 41 | 33 | 21 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 323 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
| 974 | 672 | 975 |
| 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 |
|---|---|---|---|
| STS301 | KS | Korea | Stainless steel bars |
| STS301CSP | KS | Korea | Cold rolled stainless steel strip for springs |
| STS302 | KS | Korea | Stainless steel bars |
| STS302FB | KS | Korea | Stainless steel blooms and billets for forgings |
| STS303 | KS | Korea | Free - machining stainless steel wire and wire rods |
| STS303Cu | KS | Korea | Stainless steel bars |
| STS303Se | KS | Korea | Free - machining stainless steel wire and wire rods |
| STS304 | KS | Korea | Special alloys steel for chemical plant |
| STS304L | KS | Korea | Special alloys steel for chemical plant |
| STS304LTB | KS | Korea | Stainless steel for boiler and heat exchanger tubes |
| STS304LTBS | KS | Korea | Stainless steel sanitary pipes |
| STS304LTPY | KS | Korea | Large diameter welded stainless steel pipes |
| STS304LWSA | KS | Korea | Stainless steel wires for cold heading and cold forging |
| STS304LWSB | KS | Korea | Stainless steel wires for cold heading and cold forging |
| STS304LCA | KS | Korea | Cold - rolled formed stainless steel equal leg angles |
| STS304LFB | KS | Korea | Stainless steel blooms and billets for forgings |
| STS304LTP | KS | Korea | Stainless lined steel pipe |
| STS304N1 | KS | Korea | Stainless steel bars |
| STS304N2 | KS | Korea | Stainless steel bars |
| STS304LN | KS | Korea | Stainless steel bars |