B.S. HFS 304S31 Enquiry | Print this page
B.S. HFS 304S31 Details
Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes
B.S. HFS 304S31 Standard Download
HFS 304S31 Datasheet
B.S. HFS 304S31| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Stainless Steels | HFS 304S31 | UK - B.S. , BS 3605-1 - Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.07 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.045 | ||
| S | - | 0.03 | ||
| Cr | 17.00 | 19.00 | ||
| Mo | - | - | ||
| Ni | 8.00 | 11.00 |
| 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) |
|---|---|---|---|---|---|---|
| 875 (≥) | 173 (≥) | 34 | 41 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 411 |
| 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 |
|---|---|---|---|---|---|---|---|
| 972 (≥) | 798 (≥) | 32 | 44 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 211 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 578 | 991 | 438 |
| 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 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes |
| HFS 304S31 | B.S. | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes |
| LW 304S31 | B.S. | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes |
| 304 S31 | B.S. | UK | Specification for wrought steels for mechanical and allied engineering purposes. Bright bars for general engineering purposes |
| HFS304 S31 | B.S. | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for seamless tubes |
| LW304 S31 | B.S. | UK | Austenitic stainless steel pipes and tubes for pressure purposes. Specification for longitudinally welded tubes |