HP 9-4-20 High Alloy and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Type | Steel Grade | Standard | Country | Application | 
|---|---|---|---|---|---|
| Steel Grades | High Alloy | HP 9-4-20 | |||
| HAYNES alloy 230 | |||||
| HAYNES alloy 230-W | |||||
| HAYNES alloy 242 | |||||
| Havar | |||||
| HAYNES alloy 556 | |||||
| HAYNES alloy 589 | |||||
| HAYNES alloy HR120 | |||||
| HAYNES alloy HR160 | |||||
| HAYNES stel.star.JMetal PM | |||||
| HNM | 
| C ≤ | Si ≤ | Mn ≤ | P ≤ | S ≤ | Cr | Ni | 
|---|---|---|---|---|---|---|
| 0.17-0.23 | 0.1 | 0.2 | 0.01 | 0.01 | ≤0.4 | 0.65 | 
| Mo | Al | Cu | Nb | Ti | V | Ce | 
| ≤0.85 | 4.25-4.75 | 0.06-0.12 | ||||
| N | Co | Pb | B | Other | ||
| 8.5-9.5 | W0.9-1.1 | |||||
| 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) | 
|---|---|---|---|---|---|---|
| 996 (≥) | 994 (≥) | 21 | 44 | 42 | 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 | 
|---|---|---|---|---|---|---|---|
| 12 | - | - | 0.32 | - | |||
| 538 | 158 | - | 24.3 | 422 | - | ||
| 674 | - | 14 | 14.2 | 424 | 213 | 
Heat treated : 1771°C - 1649°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| ASTM HP | AISI | USA | |
| HP | ASTM | USA | Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General Application | 
| HP | ASTM | USA | Steel Castings, Iron-Chromium and Iron-Chromium-Nickel,Heat Resistant, for General 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 | 
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