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Description

China GBT GH4220 wrought Fe/Ni-base superalloy and GH4220 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH4220
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH4220 GBT China wrought Fe/Ni-base superalloy
GH4099
GH4105
GH4133
GH4133B
GH4141
GH4145
GH4163
GH4169
GH4199
GH4202

Chemical composition(mass fraction)(wt.%) of the GH4220

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Mo(%) V(%) W(%) Cu(%) Co(%) B(%) Nb(%) Al(%) Ti(%) Mg(%) Fe(%)
≤0.08 0.35 0.50 0.015 0.009 9.00-12.00 5.00-7.00 0. 250-0.800 5.00-6. 50 0.070 14.00-15.50 ≤0.020 - 3. 90 -4. 80 2+20-2. 90 ≤0.010 ≤3.00

Mechanical Properties of steel grade GH4220

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)
594 (≥) 177 (≥) 22 43 24 Solution and Aging, Annealing, Ausaging, Q+T,etc 434

Physical Properties of steel grade GH4220

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
24 - -     0.43 -  
568 164 - 44.3 343   -  
576 - 31 14.2   124 422

Heat Treatment of steel grade GH4220

Heat treated : 1835°C - 1693°C

Technological Curves of steel grade GH4220

Cross Reference Table (Equivalent Grade) of GH4220

Grade Standard Country Application
GH4220 GBT China Nickel base superalloy
GH4220 GBT China wrought Fe/Ni-base superalloy

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