GH738 is a nickel-based superalloy reinforced by γ' phase precipitation. It has good gas corrosion resistance, high yield strength and fatigue performance, good process plasticity and stable structure. It is widely used in rotating parts of aero-engine, and the operating temperature is not higher than 815ºC. Cold-rolled and hot-rolled sheet, tube, strip, wire and forgings, castings, fasteners can be produced.
Chemical composition:
C Cr Ni Co Mo Al Ti
0.03~0.10 18.0~21.0 margin 12.0~15.0 3.5~5.0 1.2~1.6 2.75~3.25
B Zr Fe Mn Si P S Cu
0.003~0.01 0.02~0.08 ≤2.0 ≤0.10 ≤0.15 ≤0.015 ≤0.015 ≤0.1
Note: Trace impurities are ω(Pb)≤0.001%, ω(As)≤0.0025%, ω(Sn)≤0.0012%, ω(Sb)≤0.0025%, ω(Bi)≤0.0001%.
Density ρ=8.22g/cm3
Melting temperature range 1330~1360ºC
Magnetic energy type: Non-magnetic.
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