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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 Tensile Properties

Cold-Rolled and Solution Annealed Sheet, 0.033 to 0.109 in. (0.8 to 2.8 mm) Thick*

Test Temperature		Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2 in. (50.8 mm)
°F	°C	Ksi	MPa	Ksi	Mpa	%
Room	Room	118.1	815	59.5	410	47.7
1000	540	93.4	645	34.9	240	54.4
1200	650	85.4	590	32.8	225	52.4
1400	760	68.5	470	32.0	220	49.1
1600	870	47.6	330	28.6	195	52.6
1800	980	28.0	195	15.5	105	63.3
2000	1095	14.8	100	8.0	55	55.4
*Based upon 10 or more Tests per condition.

Comparative Yield Strengths (Sheet)

line graph

Hot-Rolled and Solution Annealed Plate, 0.250 to 0.500 in. (6.4 to 12.7 mm) Thick*

Test Temperature		Ultimate Tensile Strength		Yield Strength at 0.2% Offset		Elongation in 2 in. (50.8 mm)
°F	°C	Ksi	MPa	Ksi	Mpa	%
Room	Room	116.4	805	54.6	375	51.4
1000	540	90.3	625	30.6	210	60.3
1200	650	83.1	575	30.6	210	57.4
1400	760	68.5	470	29.3	200	52.6
1600	870	49.3	340	27.9	190	69.1
1800	980	30.7	210	18.5	130	83.9
2000	1095	16.1	110	8.7	60	95.2
*Based upon 56 Tests.