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| Category | Type | Steel grade | Country |
|---|---|---|---|
| Grades | Special Alloy | 304S31 | UK |
Chemical composition%of the ladle analysis of grade304S31
| C(％) | Si(％) | Mn(％) | P(％) | S(％) | Cr(％) | Ni(％) |
|---|---|---|---|---|---|---|
| Max 0.07 | Max 1.00 | Max 2.00 | Max 0.045 | Max 0.03 | 17.0-19.0 | 8.00-11.0 |
| 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) |
|---|---|---|---|---|---|---|
| 727(≥) | 423(≥) | 21 | 14 | 13 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 143 |
| 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 |
|---|---|---|---|---|---|---|---|
| 362(≥) | 585(≥) | 24 | 14 | 31 | Solution and Aging,Annealing,Ausaging,Q+T,etc | 213 | |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0)N/mm2 | Creep rupture strength (10000h) (Rp1,0)N/mm2 | |||||
| 748 | 691 | 751 |
| 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 |
|---|---|---|---|
| 304S31 | UK | Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes | |
| HFS 304S31 | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes | |
| LW 304S31 | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes | |
| 304 S31 | UK | Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes | |
| HFS304 S31 | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes | |
| LW304 S31 | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes |