GH3625、GH625

GH625 corrosion-resistant alloy overview:
GH625 is a solid solution strengthened nickel-based deformed superalloy with molybdenum and niobium as the main strengthening elements. It has excellent corrosion resistance and oxidation performance. It has good tensile properties and fatigue properties from low temperature to 980 ℃, and is salt resistant Stress corrosion in a foggy atmosphere. Therefore, it can be widely used to manufacture aero engine parts, aerospace structural parts and chemical equipment. The alloy has good processing and welding performance, and can supply various plates, bars, pipes, wires, strips and forgings.
GH625 alloy is a corrosion-resistant, oxidation-resistant nickel-based alloy. The excellent strength and toughness of GH625 alloy in the low temperature-1093 ° C temperature range are derived from the solid solution effect of the refractory metal colium and molybdenum in the nickel-chromium matrix. The excellent fatigue strength and resistance to stress corrosion cracking of GH625 alloy benefit from the chloride ion in the material.

Chemical composition of GH625 corrosion-resistant alloy:

%	Ni	Cr	Mo	Nb+Ta	Fe	Al	Ta	C	Mn	Si	Cu	P	S	Co
Min.	58	20	8	3.15
Max.		23	10	4.15	5	0.4	0.4	0.1	0.5	0.5	0.5	0.015	0.015	1

 

GH625 corrosion resistance alloy physical properties:

Density	8.4 g/cm3
Melting point	1290-1350 ℃

 

The minimum value of the mechanical properties of the GH625 corrosion-resistant alloy at room temperature:

tensile strength Rm N/mm2	yield strength RP0.2N/mm2	Elongation A5 %	Brinell hardness HB
760	345	30	≤220

 

GH625 corrosion resistant alloy applications:
GH625 alloy is mostly used in the manufacture of heat shields, turbine engine air ducts, internal combustion tubes, fuel injection rods, chemical industry equipment and special seawater applications.

Corrosion resistance of GH625 corrosion resistant alloy:
GH625 alloy can withstand a variety of corrosive environments. In alkaline solutions, sea water, fresh water, neutral salts and air, the material has little corrosion. Nickel and chromium components provide antioxidant capacity. Nickel and molybdenum provide resistance to corrosion by non-oxidizing gases. Molybdenum can effectively prevent pitting and crevice corrosion. The resistance to chloride stress corrosion cracking is particularly prominent. At high temperatures, GH625 alloy is not prone to flaking or oxidation.