USA UNS SAE J 775 (2004), Pyromet 31V Specialsteel Engine poppet valve information report and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | Pyromet 31V | Precipitation-Hardening | UNS | USA | Engine poppet valve information report |
C | Si | Mn | Cr | Ni | Mo | Co | W | Al | Cu | Ti | Fe | B | P | S |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.03 -0.06 | ≤0.20 | ≤0.20 | 22.00 -23.00 | 55.00 -58.00 | 1.70 -2.30 | ≤ ≥ | ≤ ≥ | 1.00 -1.70 | 0.60 -1.20 | 2.10 -2.60 | ≤remaining | 0.003 -0.007 | ≤0.015 | ≤0.015 |
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) |
---|---|---|---|---|---|---|
178 (≥) | 238 (≥) | 41 | 13 | 31 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 123 |
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 |
---|---|---|---|---|---|---|---|
42 | - | - | 0.43 | - | |||
541 | 861 | - | 32.3 | 443 | - | ||
885 | - | 13 | 21.2 | 314 | 433 |
Heat treated : 1513°C - 1142°C
SAE J 775 (2004) | Engine poppet valve information report | SAE-J-775-(2004).pdf |
Our main peoducts of steel are many kinds of special steel, like tool steel, mould steel, alloy steel, alloy constructural steel, heat-resistant steel, high speed tool steel,spring steel and bearing steel , stainless steel and so on, which have formed 12 series and more than 350 varieties with n...
Rfq.: sales@longhaisteel.com