USA SAE A 791/A 791M, A 791 Grade 25-4-4 Specialsteel Aluminum-Zinc Alloy-Coated Wire Strand and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | A 791 Grade 25-4-4 | Precipitation-Hardening | SAE | USA | Aluminum-Zinc Alloy-Coated Wire Strand |
C | Si | Mn | P | S | Ni | Cr | Al | Cu | Ti | Fe | N | Mo |
---|---|---|---|---|---|---|---|---|---|---|---|---|
≤0.025 | ≤0.75 | ≤1.00 | ≤0.04 | ≤0.04 | 3.35 -4.50 | 24.50 -26.00 | ≤ ≥ | ≤0.50 | ≤ ≥ | ≤ ≥ | ≤0.035 | 3.50 -4.50 |
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) |
---|---|---|---|---|---|---|
342 (≥) | 847 (≥) | 24 | 11 | 41 | 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 |
---|---|---|---|---|---|---|---|
33 | - | - | 0.22 | - | |||
541 | 737 | - | 22.3 | 433 | - | ||
186 | - | 14 | 13.2 | 313 | 444 |
Heat treated : 1934°C - 1311°C
A 791/A 791M | Aluminum-Zinc Alloy-Coated Wire Strand | A-791-A-791M.pdf |
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