Standard Grade

Trade Name

UNS No.

DIN

BS

JIS

French Specs

Hastelloy C-22

UNS N06022

WS 2.4602

-

-

-

Specification

ASTM B 622/B 829 & ASME SB 622/SB 829

Typical use

C- 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 C- 22 is particularly useful for resistance to pitting and crevice corrosion in acid-halide environments. Alloy C-22 is used in pickling chlorination, sulphonation plants, pollution control, chemical processing, marine and nuclear fuel reprocessing.

Weight Formula

Average Wall: (OD-WT) x WT x 0,0271 = Kg/m (all sizes in mm)
Minimum Wall: (OD-WT) x WT x 0,0282 = Kg/m (all sizes in mm)

Chemical Composition Limits

Weight %

Ni

Cr

Mo

Fe

W

Co

V

C

Mn

S

Si

P

C- 22 (N06022)

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

Material

Tensile Strength MPa

Yield Strength (0.2% Offset)

Elongation

Hardness

ksi

MPa

ksi

MPa

%

Rockwell

C- 22 (N06022)

100

690

45

310

45

-