HITEALLOY

GH5188 is a Co Ni Cr based solid solution strengthened deformed high-temperature alloy with a service temperature of less than 1100 degrees Celsius. The addition of W to the alloy for solid solution strengthening results in good comprehensive performance. The addition of a high content of chromium and trace amounts of lanthanum results in good high-temperature performance of the alloy. The alloy has good cold and hot working plasticity and welding process properties. Used for producing high-temperature components such as combustion chamber tubes and guide vanes in aircraft engines.

Corresponding brand:

New Grade	Old Grade	ASTM	UNS、SAE
GH5188	GH188	N0188	30188

Chemical composition:

%	C	Si	Mn	P	S	Cr	Ni	La	Cu	Fe	B	W	Co
Min	0.05	0.2	-	-	-	20	20	0.03			-	13	-
Max	0.15	0.5	1.25	0.02	0.015	24	24	0.12	0.07	3	0.015	16	Remainder

Physical performance:

density g/cm³	magnetism	Thermal conductivity/w/(m.k)	resistivity	Specific heat capacity	linear expansion coefficient
		200~900℃	C)/(0.mm2/m)	℃)/kg/(kg.k)℃	/(10-6/k)
			20~900℃	100~900℃	20~900℃
9.09	None	12.23-29.06	1.051-1.213	208-588	15.7
temperature 0/℃	20	100	200	300	400
Elastic modulus E/GPa	237	234	227	221	213