USA UNS SAE AMS 6546F, HP 9-4-25 Specialsteel Steel Sheet, Strip, and Plate 0,48Cr - 8,0Ni - 4,0Co - 4,48Mo - 0,09V - (0,24 - 0,30C) Consumable Electrode Melted, Annealed and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
| Category | Class | Grade | Type | Standard | Country | Application | 
|---|---|---|---|---|---|---|
| Steel Grades | Specialsteel | HP 9-4-25 | Precipitation-Hardening | UNS | USA | Steel Sheet, Strip, and Plate 0,48Cr - 8,0Ni - 4,0Co - 4,48Mo - 0,09V - (0,24 - 0,30C) Consumable Electrode Melted, Annealed | 
| C | Si | Mn | Ni | Cr | Al | Cu | Ti | Fe | Mo | Co | V | P | S | 
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0.24 -0.30 | ≤0.10 | 0.10 -0.35 | 7.00 -9.00 | 0.35 -0.60 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤ ≥ | 0.35 -0.60 | 3.50 -4.50 | 0.06 -0.12 | ≤0.01 | ≤0.01 | 
| 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) | 
|---|---|---|---|---|---|---|
| 249 (≥) | 648 (≥) | 42 | 14 | 13 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 333 | 
| 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 | 
|---|---|---|---|---|---|---|---|
| 21 | - | - | 0.34 | - | |||
| 469 | 258 | - | 13.3 | 441 | - | ||
| 819 | - | 24 | 31.2 | 344 | 444 | 
Heat treated : 1914°C - 1213°C
| Grade | Standard | Country | Application | 
|---|---|---|---|
| HP-10 | |||
| 439 HP-10 | |||
| AL 441HP | |||
| HP 9-4-20 | |||
| HP 9-4-25 | |||
| HP 9-4-30 | |||
| A709 Gr.HPS50W | |||
| A709 Gr.HPS70W | |||
| A709 Gr.HPS100W | |||
| ASTM HP | |||
| ASTM HP | |||
| ASTM HP | |||
| ASTM HP | 
| SAE AMS 6546F | Steel Sheet, Strip, and Plate 0,48Cr - 8,0Ni - 4,0Co - 4,48Mo - 0,09V - (0,24 - 0,30C) Consumable Electrode Melted, Annealed | SAE-AMS-6546F.pdf | 
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