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Description

China GBT GH2018 Age hardening type iron base alloy and GH2018 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH2018
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH2018 GBT China Age hardening type iron base alloy
GH1016
GH1035
GH1040
ASTM A638 Grade 660B 660D Alloy A286
GH1015
GH1016
GH1035
GH1040
GH1131
GH1140

Chemical composition(mass fraction)(wt.%) of the GH2018

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) Al(%) Ti(%) Other(%)
≤0.06 0.6 0.5 0.02 0.015 18.0-21.0 40.0-44.0 3.70-4.30 1.80-2.20 0.35-0.75 1.80-2.20 B≤0.015,Ce≤0.02,Zr≤0.05

Mechanical Properties of steel grade GH2018

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)
352 (≥) 143 (≥) 22 14 41 Solution and Aging, Annealing, Ausaging, Q+T,etc 331

Physical Properties of steel grade GH2018

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 - -     0.41 -  
263 892 - 24.3 322   -  
348 - 31 33.2   333 314

Heat Treatment of steel grade GH2018

Heat treated : 1858°C - 1314°C

Technological Curves of steel grade GH2018

Cross Reference Table (Equivalent Grade) of GH2018

Grade Standard Country Application
GH2018 GBT China Age hardening type iron base alloy

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