inconel 690

Alloy 690 has outstanding resistance to oxidizing chemicals and to high-temperature oxidizing gases. And it has resistance to stress corrosion cracking in chloride-containing environments as well as to sodium hydroxide solutions. Alloy 690 is used for applications such as coal-gasification units, burners and ducts for processing sulfuric acid, furnaces for petrochemical processing, incinerators and so on.

Specifications

UNS	W.Nr
N06690	2.4642

Chemical composition

Grade	%	Ni	Cr	Fe	C	Mn	Si	Cu	S
690	Min	58.0	27.0	7.0	0.05
	Max		31.0	11.0		0.5	0.5	0.5	0.015

Mechanical properties(Minimum value at 20℃)