GH139

Hua Nickel GH139 alloy is a high-temperature special alloy with excellent high-temperature strength and corrosion resistance, good durability and oxidation resistance, and is widely used in various industrial fields.

GH139 Chemical composition：

	Fe	Cr	Ni	Mn	N	C	B	Si	S	P
Min	Bal	23	15	5	0.3	≤
Max		26	18	7	0.45	0.12	0.01	1	0.02	0.035

GH139 Physical properties：

Density

7.83g/cm³

Thermal conductivity

θ/℃	100	200	300	400	500
α/[W/(m·℃)]	15.1	16.3	17.6	19.3	20.9
θ/℃	600	700	800	900
α/[W/(m·℃)]	22.3	23.9	25.5	27.6	—

Coefficient of linear expansion

θ/℃	25～100	25～200	25～300	25～400
α/(10-5℃-I)	15.39	16.13	16.83	17.80
θ/℃	25～500	25～600	25～700	25～800
α/(10-*℃-¹)	18.26	18.63	18.87	19.07

Resilient performance

θ/℃	20	100	300	400
E/GPa	209.8	200.6	193.5	185.2
θ/℃	500	600	700
E/GPa	155.5	140.7	126.4	—

GH139 Mechanical properties：

Standard number	Variety	heat treatment	θ/℃	Tensile properties				HB	Long-lasting performance
				σb/MPa	σp0.2/MPa	δ₅/%	ψ/%		σ/MPa	τ/h
Q/3B 1063 QJ/DT 0160006 Q/GYB 05003	Hot rolled andforged bars	Standard heattreatment	20	≥740	≥345	≥45	≥45	217～163
			900	≥180	—	≥15	≥20		49	≥50
									39	≥100

GH139 Alloy properties：

High temperature strength: GH139 alloy has excellent high temperature strength, which ensures stability in high temperature environment.

Creep resistance: GH139 alloy has good creep resistance and can maintain stable mechanical properties at high temperature and long-term operation.

Corrosion resistance: Hua Nickel GH139 alloy has excellent corrosion resistance in high temperature and corrosive media, and can resist the corrosion of corrosive media such as acid, alkali and salt.

GH139 Uses of alloys：

It is widely used in aerospace, petrochemical and other fields.Hua Nickel  GH139 alloy has been used to make aero engine mounts, pipe joints, crosses, housings and rotating sleeves.

GH139 Process performance：

Welding process: GH139 alloy has good welding performance and can be welded by argon arc welding.

Relevant standards：

GB/T14992 、Q/3B1063、QJ/DT 0160006 、Q/GYB 05003