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Alloy 22 / Hastelloy C-22 (UNS N06022)

Technical Data Sheet

Alloy 22 (UNS N06022) is the most versatile Nickel-Chromium-Molybdenum-Tungsten alloy with controlled Iron. Due to Alloy 22's content this alloy exhibits excellent resistance to both oxidising and reducing acid environments as well as those containing mixed acids. Alloy 22 is particularly useful for resistance to pitting and crevice corrosion in acid-halide environments. Alloy 22 is used in pickling chlorination, sulphonation plants, pollution control, chemical processing, marine and nuclear fuel reprocessing.

Chemical Composition Limits

Weight %

Alloy 22

Bal

20-22

12.5-14.5

2-6

2.5-3.5

2.5 max

0.35 max

0.015 max

0.50 max

0.02 max

0.08 max

0.02 max

Typical Mechanical Properties

Material	Yield Strength (0.2% Offset)		Tensile Strength		Elongation (%)
Material	ksi	MPa	ksi	MPa	Elongation (%)
Alloy 22 Bar	55	379	115	793	60

Availability
Alloy 22 is available in Bar, Sheet, Plate, Forging Stock and Welding Wire. For all stock availability contact Sales.

Specifications

Alloy 22 Bar	ASTM B574, ASTM B462, DIN 17752, ISO 9724, ISO 9723
Alloy 22 Plate	ASTM B 575
Alloy 22 Sheet	ASTM B 575, ASTM B906, ASME SB 575 ASME SB 906, ASME Code Case 2226, ISO 6208, DIN 17750
Alloy 22 Strip	ASTM B 575, ASTM B906, ASME SB 575 ASME SB 906, ASME Code Case 2226, ISO 6208, DIN 17750
Alloy 22 Wire	ASTM B574, DIN 17753
Alloy 22 Forging	ASTM B564, ASTM SB564, DIN 17754
Alloy 22 Pipe	Seamless Pipe ASTM B622, Weld Pipe ASTM B619, ASTM B775
Alloy 22 Tube	Seamless Tube, ASTM B622, ASTM B829, Weld Tube ASTM B626, DIN 17751, ISO 6207
Alloy 22 Fitting	ASTM B366, ASME SB366
Alloy 22 Other	UNS N06022, Werkstoff Nr 2.4602

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Disclaimer
Every effort is made to ensure that technical specifications are accurate. However, technical specifications included herein should be used as a guideline only. All specifications are subject to change without notice.