JIS JIS SMn 2 H Alloy Steel and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | Alloy Steel | JIS SMn 2 H | JIS | ||
| JIS SCM 5 H | |||||
| JIS SCMn 2 | |||||
| JIS SCMn 3 | |||||
| JIS SCPH 11 | |||||
| JIS SCr 2 | |||||
| JIS SCr 2 H | |||||
| JIS SCr 3 H | |||||
| JIS SCr 4 H | |||||
| JIS SMn 1 H | |||||
| JIS SMn 2 | 
| Element | Weight % | 
| C | 0.33-0.38 | 
| Mn | 1.60-1.90 | 
| P | 0.035 (max) | 
| S | 0.04 (max) | 
| Si | 0.15-0.30 | 
| 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) | 
|---|---|---|---|---|---|---|
| 775 (≥) | 478 (≥) | 22 | 12 | 41 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 411 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 41 | - | - | 0.14 | - | |||
| 329 | 613 | - | 13.3 | 324 | - | ||
| 776 | - | 31 | 21.2 | 412 | 124 | 
Heat treated : 1458°C - 1737°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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