Russia GOST 55X20Γ9AH4 Specialsteel Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.
Category | Class | Grade | Type | Standard | Country | Application |
---|---|---|---|---|---|---|
Steel Grades | Specialsteel | 55X20Γ9AH4 | Austenite | GOST | Russia | Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition |
C | Si | Mn | P | S | Cr | Ni | Mo | W | Ti | N |
---|---|---|---|---|---|---|---|---|---|---|
0.50 -0.60 | ≤0.45 | 8.00 -10.00 | ≤0.040 | ≤0.030 | 20.00 -22.00 | 3.50 -4.50 | ≤0.30 | ≤0.20 | ≤0.20 | 0.30 -0.60 |
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) |
---|---|---|---|---|---|---|
321 (≥) | 367 (≥) | 33 | 41 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 422 |
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 | - | - | 0.14 | - | |||
521 | 665 | - | 24.3 | 141 | - | ||
652 | - | 14 | 32.2 | 441 | 333 |
Heat treated : 1481°C - 1873°C
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