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B.S. 1.4303 Details
B.S. 1.4303 Standard Download
| Category | Type | Grade | Microstructure | Designations |
|---|---|---|---|---|
| Grades | Stainless Steels | 1.4303 | Austenite | UK - B.S. , BS EN 10088-1 - Stainless steels - Part 1: List of stainless steels BS EN 10088-2 - Stainless steels - Part 2: Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes BS EN 10088-3 - Stainless steels - Part 3: Technical delivery conditions for semi-finished products, bars, rods, wire, sections and bright products of corrosion resisting steels for general purposes BS EN 10263-5 - Steel rod, bars and steel wire for cold heading and cold extrusion - Part 5: Technical delivery conditions for stainless steels BS EN 10264-4 (2002) - Steel wire and wire products - Steel wire for ropes - Part 4: Stainless steel wire BS EN 10269 - Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| Elements | Min.（≥） | Max.（≤） | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.06 | ||
| Si | - | 1.00 | ||
| Mn | - | 2.00 | ||
| P | - | 0.045 | ||
| S | - | 0.015 | ||
| Cr | 17.00 | 19.00 | ||
| Ni | 11.00 | 13.00 | ||
| Mo | - | - | ||
| N | - | 0.11 |
| 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) |
|---|---|---|---|---|---|---|
| 256 (≥) | 929 (≥) | 31 | 22 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 321 |
| 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 |
|---|---|---|---|---|---|---|---|
| 456 (≥) | 263 (≥) | 31 | 12 | 34 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 342 | |
| Temp. °C/°F |
Creep strain limit (10000h) (Rp1,0) N/mm2 |
Creep rupture strength (10000h) (Rp1,0) N/mm2 |
|||||
| 567 | 529 | 962 |
| 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 |
|---|---|---|---|
| X4CrNi18-12 | AWS | Germany | Stainless steels - Technical delivery conditions for drawn wire |
| 1.4303 | AWS | Germany | Stainless steels - Technical delivery conditions for drawn wire |
| X4CrNi18-12 | B.S. | UK | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| 1.4303 | B.S. | UK | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| X4CrNi18-12 | AFNOR | France | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |
| 1.4303 | AFNOR | France | Steels and nickel alloys for fasteners with specified elevated and/or low temperature properties |