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GH738(GH684)

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GH710 GH742
#GH738(GH684)

Description

China GBT GH738(GH684) wrought Fe/Ni-base superalloy and GH738(GH684) Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH738(GH684)
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH738(GH684) GBT China wrought Fe/Ni-base superalloy
GH199
GH202
GH220
GH413
GH500
GH586
GH648
GH698
GH708
GH710

Chemical composition(mass fraction)(wt.%) of the GH738(GH684)

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) Cu(%) Co(%) B(%) Nb(%) Al(%) Ti(%) La(%) Fe(%)
0.03-0.10 0.15 0.10 0.015 0.015 18.00-21.00 Bal 3.50-5.00 0.100 12.00-15.00 0.003 -0.010 - 1.20 -1.60 2.75 -3.25 - ≤2.00

Mechanical Properties of steel grade GH738(GH684)

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)
492 (≥) 876 (≥) 12 13 33 Solution and Aging, Annealing, Ausaging, Q+T,etc 242

Physical Properties of steel grade GH738(GH684)

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
31 - -     0.33 -  
338 663 - 33.3 131   -  
692 - 32 12.2   224 141

Heat Treatment of steel grade GH738(GH684)

Heat treated : 1499°C - 1787°C

Technological Curves of steel grade GH738(GH684)

Cross Reference Table (Equivalent Grade) of GH738(GH684)

Grade Standard Country Application
GH738(GH684) GBT China wrought Fe/Ni-base superalloy
GH710 GH742
Available Suppliers
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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