GH30

HuaNickel GH30 is a Ni-Cr solution-strengthened deformed superalloy with a service temperature below 800°C. The alloy has good thermal strength and high plasticity, as well as resistance to cold and heat fatigue and oxidation, and has good cold stamping and welding process performance. The alloy is single-phase austenite after solution treatment, and the structure is stable during use.

GH30 Chemical composition：

	Ni	Cr	Ti	C	Al	Fe	S	P	Si	Mn	Cu
Min	Bal	19	0.15	≤
Max		22	0.35	0.12	0.15	1.5	0.02	0.03	0.8	0.7	0.2

GH30 Physical properties：

Density	8.4g/cm³
Melting point	1374℃~1420℃
Magnetic properties	not

Resilient performance

θ/℃	20	100	200	300	400	500	600	700	800
Ed/GPa	224	219	213	206	200	193	184
E/GPa	191						137	118	93

GH30 Mechanical properties：

Standard number	variety	Heat treatment	20℃Stretch		700℃Stretch
			σb/MPa	δ₅/%	σb/MPa	δ₅/%
			≥
GB/T 14995、GB/T 14996 GJB 1952A、GJB 3317A	Hot rolled plate Cold-rolled plate	(980～1020)℃/AC	685	30	295	30
GJB 3318	Cold-rolled strip	(980～1020)℃/AC	685	30
GJB 3165A	Cold-rolled strip			——	——
GJB 2611、GB/T 14994	Cold drawer	(980～1020)℃/WQ/AC	685	30	—
GJB 3167A	Cold heading wire	(980～1020)℃/WQ/AC	≤785	30	一
GJB 2297A	Cold-drawn tubes	(980～1020)℃/WQ	635	35	295	30
GB/T 15062	Pipe	(980～1020)℃/WQ	590	35	——
GJB 3020A	Ring blanks	(980～1020)℃/AC	635	30		30

GH30 Alloy properties：

GH30 alloy has excellent welding performance and can be used for argon arc welding, spot welding, seam welding or brazing. If the solution temperature is low during production, the old grain boundaries formed by the residual carbides will be retained.

GH30 Uses of alloys：

HuaNickel GH30 alloy is used to make parts such as aero engine combustion chamber, afterburner combustion chamber and casing mounting edge.

GH30 Process performance：

Welding process: the fluidity and forming properties of the molten pool are good during argon arc welding, and the crack tendency is small; Spot welding and seam welding have a wide range of specification parameters, the core shrinkage porosity is small, and generally not cracks and bonding lines extend in.

Relevant standards：

GB/T14994、GB/T14995、GB/T 14996、GB/T15062、GJB1952A、GJB 2297A、GJB 2611A、GJB 2612、GJB3020A、GJB3165A、GJB3167A、GJB 3317A、GJB 3318A、HB/Z140、YB/T 5245