C-22 yog ib txoj kev xaiv zoo thaum SuperaiTenitic stainless hlau (al-6xn, 904L, thiab 2507) yuav tsis withstand tsis tshua muaj kev tawm tsam. Qhov no yog vim tias nws yog npib tsib xee-molybdenum-tungsten alloy nrog rau lwm yam ni-mo angle alloy, zoo li Hastelloy C-27, C-4, thiab Alloy 625.