USA UNS SAE AMS 6438F (2001), D6AC Specialsteel Steel, Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.45 - 0.50C) Consumable Electrode Vacuum Melted and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | D6AC | Precipitation-Hardening | UNS | USA | Steel, Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.45 - 0.50C) Consumable Electrode Vacuum Melted |
C | Si | Mn | P | S | Ni | Cr | Al | Cu | Ti | Fe | Mo | Co | V |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
≤0.47 | ≤0.22 | ≤0.75 | ≤ ≥ | ≤ ≥ | ≤0.55 | ≤1.05 | ≤ ≥ | ≤ ≥ | ≤ ≥ | ≤remaining | ≤1.00 | ≤ ≥ | ≤0.10 |
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) |
---|---|---|---|---|---|---|
821 (≥) | 498 (≥) | 12 | 14 | 33 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 134 |
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 |
---|---|---|---|---|---|---|---|
34 | - | - | 0.32 | - | |||
669 | 371 | - | 12.3 | 443 | - | ||
624 | - | 13 | 41.2 | 132 | 211 |
Heat treated : 1647°C - 1499°C
SAE AMS 6438F (2001) | Steel, Sheet, Strip, and Plate 1.05Cr - 0.55Ni - 1.0Mo - 0.12V (0.45 - 0.50C) Consumable Electrode Vacuum Melted | SAE-AMS-6438F-(2001).pdf |
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