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55X20Γ9AH4

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36X18H25C2 07X21Γ7AH5
#55X20Γ9AH4

Description

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.

Datasheet for: Steel Grades:Specialsteel: 55X20Γ9AH4
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel 55X20Γ9AH4 Austenite GOST Russia Russia GOCT standard stainless steel and heat resistant steel steel grade and chemical composition

Chemical composition(mass fraction)(wt.%) of the 55X20Γ9AH4

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

Mechanical Properties of steel grade 55X20Γ9AH4

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)
338 (≥) 749 (≥) 43 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 211

Physical Properties of steel grade 55X20Γ9AH4

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
22 - -     0.44 -  
754 878 - 12.3 442   -  
151 - 22 12.2   323 222

Heat Treatment of steel grade 55X20Γ9AH4

Heat treated : 1816°C - 1847°C

Technological Curves of steel grade 55X20Γ9AH4

36X18H25C2 07X21Γ7AH5
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Jiangyou Longhai Special Steel Co.,Ltd.
Jiangyou Longhai Special Steel Co.,Ltd.

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...

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