Alloy C22 Fasteners

Alloy C22 resists both reducing and oxidizing acids. In some tests, it shows superior pitting resistance to Alloy C276 and Alloy 625. Alloy C22 is used in furnace scrubbers and phosphoric acid production. We have experienced little demand for Alloy C22 fasteners. Consequently, the quantities of hex bolts and hex nuts available from stock are not large. In many cases, Alloy C276 will work as a substitute.

Hastelloy C22 (® Haynes International)
AL 22 (® Allegheny Technologies)
Carpenter Alloy 22 (® Carpenter Technologies)
Inconel Alloy 22 (® Special Metals)
Nickelvac 22 (® Allegheny Technologies)
Nicrofer 5621 hMoW (® ThyssenKrupp VDM)

Primary Resistance

ASTM B574, ASME SB574 (Bar)
ASTM B575, ASME SB575 (Plate)
UNS N06022
W-Nr 2.4062

Typical Tensile Strength (at room temperature in KSI)

Typical Chemistry (% by weight)
C .005, Co 1.5, Cr 22, Fe 3, Mn .3, Mo 13, Ni 56, Si .05, V .25, W 3