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HAYNES^® 556^®alloy Information

An iron-nickel-chromium-cobalt alloy that combines effective resistance to sulfidizing,
carburizing and chlorine-bearing environments with good oxidation resistance,
fabricability and excellent high-temperature strength.

HAYNES^® 556^®alloy Site

Principal Features

Sulfidation Resistance

Carburization Resistance

Oxidation Resistance

Applications

Resistance to Chlorine-Bearing Environments

Other Environments

Physical Properties

Modulus of Elasticity

Tensile Properties

ASME Vessel Code

Creep and Rupture Properties

Impact Properties

Thermal Stability

Fabrication Characteristics

Welding

Health and Safety

Machining

HAYNES^®556 ^®alloy
Technical Briefs

HAYNES^®556 ^®alloy
Wire Information

Metallurgist Support

Sales Office Addresses

Tubular Products

Fittings & Flanges

Typical Impact Properties

	V-Notch Impact Strength¹ Room Temperature
Material	ft.-lb.	Joules

alloy 800H	239²	324²
alloy 600	180	244
556 alloy	177²	240²
188 alloy	143	194
S alloy	140	190
alloy 625	81	110
X alloy	54	73

¹ Average of 4 or more tests
² Samples did not break