Chemical Composition, %
Ni	Fe	C	S	Co	Nb + Ta	Cr	Mn	Si	Mo	Ti	Al
58.0 min	5.0 max	0.1 max	0.15 max	1.0 max	3.15 - 4.15	20 - 23.0	0.5 max	0.5 max	8 - 10.0	0.4 max	0.4 max

 

Characteristics

• Excellent mechanical properties at both extremely low and extremely high temperatures.
• Outstanding resistance to pitting, crevice corrosion and intercrystalline corrosion.
• Almost complete freedom from chloride induced stress corrosion cracking.
• High resistance to oxidation at elevated temperatures up to 1050C.
• Good resistance to acids, such as nitric, phosphoric, sulfuric and hydrochloric, as well as to alkalis makes possible the construction of thin structural parts of high heat transfer.

 

Applications

• Components where exposure to sea water and high mechanical stresses are required.
• Oil and gas production where hydrogen sulfide and elementary sulfur exist at temperature in excess of 150C.
• Components exposed to flue gas or in flue gas desulfurization plants.
• Flare stacks on offshore oil platforms.
• Hydrocarbon processing from tar-sand and oil-shale recovery projects.

 

Mechanical Properties
Condition	Solution Annealed	Hot Worked
Tensile Strength ( Mpa )	931	980
0.2% Yield Strength ( Mpa )	539	588
Elongation ( % )	45	45
Hardness ( HB )	180	210