BS B.S. 410 S 21 Stainless Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Stainless Steel | B.S. 410 S 21 | BS | ||
| B.S. 321 S 49 | 
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| B.S. 321 S 50 | 
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| B.S. 321 S 59 | 
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| B.S. 321 S 87 | 
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| B.S. 347 S 17 | 
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| B.S. 347 S 18 | 
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| B.S. 347 S 40 | 
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| B.S. 403 S 17 | 
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| B.S. 405 S 17 | 
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| B.S. 409 S 17 | 
                                
| Element | Weight % | 
| C | 0.15 | 
| Mn | 1.00 | 
| Si | 1.00 | 
| Cr | 11.5-13.0 | 
| P | 0.04 | 
| S | 0.03 | 
| Yield Rp0.2 (MPa)  | 
                                            Tensile Rm (MPa)  | 
                                            Impact KV/Ku (J)  | 
                                            Elongation A (%)  | 
                                            Reduction in cross section on fracture Z (%)  | 
                                            As-Heat-Treated Condition | Brinell hardness (HBW) | 
|---|---|---|---|---|---|---|
| 179 (≥) | 855 (≥) | 23 | 21 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 232 | 
| Temperature (°C)  | 
                                        Modulus of elasticity (GPa)  | 
                                        Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and | Thermal conductivity (W/m·°C)  | 
                                        Specific thermal capacity (J/kg·°C)  | 
                                        Specific electrical resistivity (Ω mm²/m)  | 
                                        Density (kg/dm³)  | 
                                        Poisson’s coefficient, ν | 
|---|---|---|---|---|---|---|---|
| 12 | - | - | 0.22 | - | |||
| 327 | 543 | - | 44.3 | 424 | - | ||
| 111 | - | 43 | 11.2 | 414 | 311 | 
Heat treated : 1716°C - 1724°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| Q195 | China | Engineering and welding | |
| Q215 | China | Engineering and welding | |
| Q215 B | China | Engineering and welding | |
| Q235 | China | Engineering and welding | |
| Q235 B | China | Engineering and welding | |
| Q235 C | China | Engineering and welding | |
| Q235 D | China | Engineering and welding | |
| Q255 A | China | Engineering and welding | |
| Q255 B | China | Engineering and welding | |
| Q275 | China | Engineering and welding | |
| Q235q C | China | Bridge structure with steel | |
| Q235q D | China | Bridge structure with steel | |
| Q345q E | China | Bridge structure with steel | |
| Q345q C | China | Bridge structure with steel | |
| ASTM 1030 | ASTM | USA | General use carbon steel bar | 
| UNS G10300 | UNS | USA | General use carbon steel bar | 
| ASTM 1005 | ASTM | USA | General use carbon steel bar | 
| UNS G10050 | UNS | USA | General use carbon steel bar | 
| ASTM 1006 | ASTM | USA | General use carbon steel bar | 
| UNS G10060 | UNS | USA | General use carbon steel bar | 
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