ʻO 304 a me 316 nā ʻano kila kila, a ʻo kā lākou "hoʻopau" pili i ke ʻano o ka ʻili a i ʻole ke ʻano o ke kila. ʻO ka ʻokoʻa ma waena o kēia mau ʻano ʻelua aia i kā lākou haku mele ʻana a me nā waiwai hopena:

Huina:

304 Ke kila kila:

Aia ma kahi o 18-20% chromium a me 8-10.5% nickel.
Hiki ke loaʻa i nā mea liʻiliʻi ʻē aʻe e like me ka manganese, silika, a me ke kalapona.

316 Ke kila kila:

Aia ma kahi o 16-18% chromium, 10-14% nickel, a me 2-3% molybdenum.
ʻO ka hoʻohui ʻana o ka molybdenum e hoʻonui i kona kūpaʻa ʻana i ka corrosion, ʻoi aku hoʻi i nā chlorides a me nā mea hoʻoheheʻe ʻoihana ʻē aʻe.

Nā waiwai a me nā noi:

304 Ke kila kila:

Pale ʻino: Maikaʻi, ʻaʻole naʻe i ʻoi aku ka kiʻekiʻe e like me 316, ʻoi aku ka nui ma nā wahi chloride.

Ka ikaika: ʻO ka ikaika kiʻekiʻe a me ka paʻakikī, maikaʻi no nā kumu maʻamau.

Nā noi: Hoʻohana nui ʻia i nā lako kīhini, ka hoʻoponopono ʻana i ka meaʻai, ka ʻokiʻoki hale, nā ipu kemika, a me nā mea hou aku ma muli o kona kūpaʻa maikaʻi ʻana a me ka maʻalahi o ka hoʻomaʻemaʻe.

316 Ke kila kila:

Pale ʻino: ʻOi aku ma mua o 304, ʻoi aku ka maikaʻi ma ka wai paʻakai a i ʻole ka moana, a ma ke alo o nā chlorides.

Ka ikaika: E like me 304 akā me ke kūʻē pitting ʻoi aku ka maikaʻi.

Nā noi: He kūpono no ka hoʻohana ʻana i nā kaiapuni moana, nā lako lāʻau lapaʻau, nā mea kanu lāʻau, ka hoʻoponopono kemika, a me nā wahi āpau kahi e koi ʻia ai ke kūpaʻa kiʻekiʻe.

Hoʻopau:

ʻO ka "hoʻopau" o ke kila kila, inā he 304 a i ʻole 316, e pili ana i ka hoʻopau ʻana i ka ʻili, hiki ke ʻokoʻa ma muli o ke kaʻina hana. Loaʻa nā hoʻopau maʻamau:

1, ʻAʻole. 2B: ʻO kahi hoʻopau maʻemaʻe a palupalu i hana ʻia e ka ʻōwili anu a ukali ʻia e ka annealing a me ka descaling.

2, ʻAʻole. 4: ʻO kahi hoʻopau palaki ʻia, i loaʻa ma ka hoʻomaʻamaʻa ʻana i ka ʻili me ka hana ʻana i ke ʻano o nā laina maikaʻi e like me ke kuhikuhi o ka palaki ʻana.

3, ʻAʻole. 8: ʻO kahi hoʻopau e like me ke aniani i hana ʻia ma ka hoʻoliʻiliʻi ʻana me nā abrasive ʻoi aku ka maikaʻi a me ka buffing.

Hiki i nā kila kila 304 a me 316 ke hoʻopau like, akā ʻo ke koho ʻana ma waena o 304 a me 316 e hilinaʻi ʻia i nā kūlana kūlohelohe kūikawā a me nā waiwai e pono ai no ka noi.

ʻOi aku ke kumukūʻai o 316 a i ʻole 304?

ʻO ka maʻamau, ʻoi aku ka pipiʻi o 316 stainless steel ma mua o 304 stainless steel. ʻO ke kumu nui o kēia ʻokoʻa kumukūʻai ʻo ia ka hoʻokumu ʻana o 316 stainless steel, kahi i loaʻa i kahi pākēneka kiʻekiʻe o ka nickel a me ka hoʻohui ʻana o ka molybdenum. Hoʻonui kēia mau mea i ka pale ʻana i ka corrosion o 316 stainless steel, ʻoi aku ka nui o ka chloride a me ke kai moana, akā hāʻawi pū lākou i nā kumukūʻai kiʻekiʻe.

Eia ka hōʻuluʻulu manaʻo o nā kumu i ka ʻokoʻa o ke kumukūʻai:

Huina Mea:

304 Ke kila kila: Aia ma kahi o 18-20% chromium a me 8-10.5% nickel.
316 Ke kila kila: Aia ma kahi o 16-18% chromium, 10-14% nickel, a me 2-3% molybdenum.

Pale ʻino:

316 Ke kila kila: Hāʻawi i ka pale ʻino ʻoi aku ka maikaʻi, kūʻē i nā chlorides a me nā kaiapuni kai, ma muli o ka loaʻa ʻana o ka molybdenum.
304 Ke kila kila: Loaʻa i ka pale ʻino maikaʻi akā ʻaʻole i like ka maikaʻi ma nā wahi ʻino loa i hoʻohālikelike ʻia me 316.

Nā koina hana:

ʻO ka nui o ka nickel a me ka hoʻohui ʻana o ka molybdenum i ka 316 stainless steel ka hopena i ka hoʻonui ʻana i nā kumukūʻai maka.
ʻOi aku paha ke kiʻekiʻe o nā kumukūʻai hoʻoili a me ka hana ʻana no ka 316 stainless steel ma muli o kāna ʻano paʻakikī paʻakikī.

No laila, no nā noi kahi i koi ʻole ʻia ai ka pale corrosion kiʻekiʻe o 316 stainless steel, koho pinepine ʻia ʻo 304 stainless steel ma ke ʻano he kumu kūʻai.