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GH708

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GH698 GH710
#GH708

Description

China GBT GH708 wrought Fe/Ni-base superalloy and GH708 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH708
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH708 GBT China wrought Fe/Ni-base superalloy
GH163
GH169
GH199
GH202
GH220
GH413
GH500
GH586
GH648
GH698

Chemical composition(mass fraction)(wt.%) of the GH708

C(％) Si(％) Mn(％) P(％) S(％) Cr(％) Ni(％) Mo(％) W(%) Co(%) B(%) Al(%) Ti(%) La(%) Fe(%)
0.05-0.10 0.40 0. 50 0*015 0.015 17.50-20.00 Bal 4.00-6.00 5. 50-7. 50 ≤0. 50 ≤0.008 1. 90-2. 30 1.00-1.40 - ≤4-00

Mechanical Properties of steel grade GH708

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)
824 (≥) 588 (≥) 43 32 31 Solution and Aging, Annealing, Ausaging, Q+T,etc 244

Physical Properties of steel grade GH708

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 - -     0.21 -  
479 817 - 43.3 144   -  
619 - 13 13.2   343 441

Heat Treatment of steel grade GH708

Heat treated : 1528°C - 1851°C

Technological Curves of steel grade GH708

Cross Reference Table (Equivalent Grade) of GH708

Grade Standard Country Application
GH708 GBT China wrought Fe/Ni-base superalloy
GH698 GH710
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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