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GH188

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GH742 GH605
#GH188

Description

China GBT GH188 wrought Co-base superalloy and GH188 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH188
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH188 GBT China wrought Co-base superalloy
GH220
GH413
GH500
GH586
GH648
GH698
GH708
GH710
GH738(GH684)
GH742

Chemical composition(mass fraction)(wt.%) of the GH188

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) W(%) Cu(%) Co(%) B(%) Nb(%) La(%) Fe(%)
0.05 -0.15 0. 20-0. 50 <1.25 0,020 0.015 20.00-24.00 20.00-24.00 13.00 -16, 00 0.070 Bal <0.015 — 0.030 -0.120 <3.00

Mechanical Properties of steel grade GH188

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)
758 (≥) 921 (≥) 24 31 32 Solution and Aging, Annealing, Ausaging, Q+T,etc 133

Physical Properties of steel grade GH188

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
41 - -     0.24 -  
381 298 - 22.3 232   -  
589 - 21 32.2   411 424

Heat Treatment of steel grade GH188

Heat treated : 1623°C - 1919°C

Technological Curves of steel grade GH188

Cross Reference Table (Equivalent Grade) of GH188

Grade Standard Country Application
GH188 GBT China wrought Co-base superalloy
GH742 GH605
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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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