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Haynes 188 sheet/bar/pipe

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Specification, Chemical & Mechanical Performance

Equivalent designations
UNS R30188

Chemical composition

%	Co	Ni	Cr	W	Fe	C	Mn	Si	P	S	La	B
min	balance	20.0	20.0	13.0		0.05		0.20			0.02
max	balance	24.0	24.0	16.0	3.0	0.15	1.25	0.50	0.020	0.015	0.12	0.015

Physical properties

Density	8.98 g/cm3
Melting range	1315-1410℃

Features: Haynes 188 combines excellent high temperature strength with very good resistance to oxidizing environments up to 1095℃ for prolonged exposure, and excellent resistance to sulfate deposit hot corrosion. It also has excellent resistance to molten chloride salts, and good resistance to gaseous sulfidation.

Applications: Military and commercial gas turbine engine combustion cans, transition ducts and after-burner components.