ALLOY 904L • UNS N08904 • WNR 1.4539

ʻO UNS NO8904, i ʻike nui ʻia ʻo 904L, he haʻahaʻa carbon high alloy austenitic stainless steel i hoʻohana nui ʻia i nā noi kahi i lawa ʻole ai nā waiwai corrosion o AISI 316L a me AISI 317L.

ʻO ka hoʻohui ʻana o ke keleawe i kēia papa e hāʻawi iā ia i nā waiwai kū i ka corrosion i ʻoi aku ka maikaʻi o ka chrome nickel stainless steels, ʻo ia hoʻi i ka sulfuric, phosphoric a me ka acetic acids. Eia nō naʻe, he palena iki ka hoʻohana ʻana me nā waikawa hydrochloric. He kūpaʻa kiʻekiʻe nō hoʻi ia i ka luaʻi ʻana i loko o nā hāʻina chloride, kahi kūʻē kiʻekiʻe i ka crevice a me ke koʻikoʻi corrosion māhā. ʻOi aku ka maikaʻi o ka Alloy 904L ma mua o nā mea kila kila austenitic ʻē aʻe ma muli o ka hoʻohui kiʻekiʻe o ka nickel a me ka molybdenum.