Nickel Alloy 400 na monel 400, makwaara dị ka N044400, bụ Alcoy Nickel-Copper-Copper nke sitere na ọla atọ na ọla kọpa. A maara Nickel Alloy 400 maka iguzogide ụdị ọnọdụ ya, gụnyere alkalis (ma ọ bụ acid), mmiri nnu, na sulfuric acid. Ebe ọ bụ na Monel 400 ma ọ bụ alloy 400 bụ oyi na-arụ ọrụ na-arụ ọrụ, Alloy nwere oke isi ike, ike na ike. Site na oyi na-arụ ọrụ ASTM B164 na-enweghị isi N04400 Bark, a na-edo onwe ya ọkwa dị elu nke nrụgide nke ọma, nke na-ebute mgbanwe na microy.