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B.S. 3S.61 Details
B.S. 3S.61 Standard Download
3S.61 Application:Specification for aircraft material. 12 per cent chromium corrosion-resisting steel (35/45 tonf/sq in: limiting ruling section 6 in)
| Category | Type | Grade | Designations |
|---|---|---|---|
| Grades | Stainless Steels | 3S.61 | UK - B.S. , BS 3S 61 (1964) - Specification for aircraft material. 12 per cent chromium corrosion-resisting steel (35/45 tonf/sq in: limiting ruling section 6 in) |
Chemical composition(wt.%) of 3S.61 grade: BS 3S 61 (1964)
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.12 | ||
| Si | - | 0.80 | ||
| Mn | - | 1.00 | ||
| P | - | 0.030 | ||
| S | - | 0.025 | ||
| Cr | 11.50 | 13.50 | ||
| Ni | - | 1.00 | ||
| Mo | - | - | ||
| Nb/Ti | - | - |
Mechanical properties of grade 3S.61 BS 3S 61 (1964)
| 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) |
|---|---|---|---|---|---|---|
| 387 (≥) | 285 (≥) | 21 | 22 | 22 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 432 |
Physical properties of grade 3S.61 BS 3S 61 (1964)
| 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 |
|---|---|---|---|---|---|---|---|
| 421 (≥) | 188 (≥) | 24 | 14 | 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 |
|||||
| 621 | 719 | 834 |
3S.61 - Form of Supply
| 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 |
Cross Reference Table(Equivalent Grade)
| Grade | Standard | Country | Application |
|---|---|---|---|
| 3S.61 | B.S. | UK | Specification for aircraft material. 12 per cent chromium corrosion-resisting steel (35/45 tonf/sq in: limiting ruling section 6 in) |
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