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Description

China GBT GH698 wrought Fe/Ni-base superalloy and GH698 Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Special Alloy: GH698
Category Type Steel Grade Standard Country Application
Steel GradesSpecial Alloy GH698 GBT China wrought Fe/Ni-base superalloy
GH145
GH163
GH169
GH199
GH202
GH220
GH413
GH500
GH586
GH648

Chemical composition(mass fraction)(wt.%) of the GH698

C(%) Si(%) Mn(%) P(%) S(%) Cr(%) Ni(%) Mo(%) W(%) Cu(%) B(%) Nb(%) Al(%) Ti(%) Fe(%)
≤0.08 0.60 0.40 0.015 0.007 13.00-16.00 Bal 2.80-3.20 - 0.070 ≤0.005 1.80 -2. 20 1. 30-1. 70 2. 35-2. 75 ≤2.00

Mechanical Properties of steel grade GH698

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)
877 (≥) 799 (≥) 13 13 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 422

Physical Properties of steel grade GH698

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
11 - -     0.21 -  
216 198 - 42.3 142   -  
227 - 31 41.2   434 341

Heat Treatment of steel grade GH698

Heat treated : 1448°C - 1539°C

Technological Curves of steel grade GH698

Cross Reference Table (Equivalent Grade) of GH698

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

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