He aha nā ʻokoʻa ma waena o nā mea kila stainless maʻamau 304 a me 316?

I kēia mau lā, hoʻohana nui ʻia ke kila kila i ko mākou ola, mai nā lako aerospace i nā ipu a me nā pā. I kēia lā, e kaʻana like mākou i nā mea kila stainless 304 a me 316.
ʻO nā ʻokoʻa ma waena o 304 a me 316
ʻO 304 a me 316 nā kūlana ʻAmelika. 3 hōʻike 300 moʻo kila. ʻO nā huahelu hope ʻelua he mau helu serial. 304 ʻO 06Cr19Ni9 ka inoa Kina (ʻoi aku ma mua o 0.06% C, ʻoi aku ma mua o 19% chromium a ʻoi aku ma mua o 9% nickel); 316 ʻO 06Cr17Ni12Mo2 ka inoa Kina (ʻoi aku ka liʻiliʻi ma mua o 0.06% C, ʻoi aku ma mua o 17% chromium, ʻoi aku ma mua o 12% nickel a ʻoi aku ma mua o 2% molybdenum).
Manaʻo ʻia hiki iā mākou ke ʻike mai ka hōʻailona he ʻokoʻa ke ʻano kemika o 304 a me 316, a ʻo ka ʻokoʻa nui i hoʻokumu ʻia e nā haku mele ʻokoʻa ʻo ia ka ʻokoʻa o ka ʻakika a me ke kūpaʻa corrosion. Ke hoʻohālikelike ʻia me ka 304 phase, 316 ka piʻi ʻana o ka nickel a me ka nickel, ʻo ia hoʻi, ua hoʻohui ʻia ka molybdenum a me ka molybdenum. ʻO ka hoʻohui ʻana i ka nickel hiki ke hoʻomaikaʻi hou i ka lōʻihi, nā waiwai mechanical a me ke kūpaʻa ʻana o ke kila kila. Hiki i ka Molybdenum ke hoʻomaikaʻi i ka ʻinoʻino o ka lewa, ʻoi aku ka nui o ka corrosion i loko o ka chloride. No laila, ma ka hoʻohui ʻana i nā hiʻohiʻona hana o 304 stainless steel, 316 stainless steel ka mea kūʻē i ka corrosion o nā media kūikawā, hiki ke hoʻomaikaʻi i ke kūpaʻa corrosion o ka waika hydrochloric kemika a me ka moana, a hoʻomaikaʻi i ka pale ʻana o ka brine halogen solution.
ʻO ka laulā noi o 304 a me 316
Hoʻohana nui ʻia ʻo 304 stainless steel, e like me nā kīʻaha kīhini a me nā papa ʻaina, nā mea hoʻonaninani hale, nā ʻoihana meaʻai, ka mahiʻai, nā ʻāpana moku, ka lumi ʻauʻau, nā ʻāpana kaʻa, etc.
ʻOi aku ka kiʻekiʻe o ke kumukūʻai o 316 stainless steel ma mua o 304. Ke hoʻohālikelike ʻia me 304, 316 stainless steel he ikaika ikaika ke kūpaʻa a me ka paʻa. Hoʻohana nui ʻia ʻo 316 stainless steel i ka ʻoihana kemika, ka wai, ka hana pepa, ka acetic acid, ka mea hoʻomomona a me nā mea hana ʻē aʻe, ka ʻoihana meaʻai a me nā wahi kahakai, a me nā huahana me nā koi kūikawā no ke kū'ē ʻana i ka corrosion intergranular.
No ke ola o kēlā me kēia lā, hiki i ka 304 stainless steel ke hoʻokō i kā mākou mau pono, a ʻo 304 kekahi mea kila kila e kū pono ana i ke kūlana meaʻai.