He ʻili laumania ko nā pepa kila kila, he plasticity kiʻekiʻe, he paʻakikī, a he ikaika mechanical, a he kūpaʻa i ka pala mai nā kinoea acidic a me alkaline, nā hopena, a me nā media ʻē aʻe. He kila alloy ia ʻaʻole e maʻalahi ka popo, akā ʻaʻole ia he pale loa i ka popo. Pili nā pepa kila kila i nā pepa kila e kūpaʻa ana i ka pala mai nā media nāwaliwali e like me ka lewa, ka mahu, a me ka wai, ʻoiai ʻo nā pepa kila kūpaʻa waikawa e pili ana i nā pepa kila e kūpaʻa ana i ka pala mai nā media corrosive kemika e like me nā waikawa, alkalis, a me nā paʻakai.
Loaʻa nā pepa kila kila i nā papa like ʻole, me nā moʻo koʻikoʻi loa e pili ana i ka austenitic, ferritic, duplex, a me martensitic. Loaʻa i kēlā me kēia papa nā waiwai mechanical kūikawā a me ke kūpaʻa i ka pala, e kūpono ai no nā noi kikoʻī.
Ke kila kila Austenitic (300 Series)
304/304L: Kila kila no ke kumu maʻamau. Loaʻa iā ia ke kūpaʻa maikaʻi i ka pala, ka hiki ke hoʻopili ʻia, a me ka hiki ke hoʻopili ʻia.
316/316L: Me ka hoʻohui ʻana o 2-3% molybdenum, he kūpaʻa maikaʻi loa ia i nā chlorides (wai kai, paʻakai de-icing).
321: Me ka hoʻohui ʻana o nā mea hoʻopaʻa titanium, pale ia i ka sensitization i ka wā o ka hoʻopili ʻana.
310S: Papa wela kiʻekiʻe (a hiki i 1100°C), kūpono no nā ʻāpana umu.
Ke kila kila Ferritic (moʻo 400, e.g. 430, 409, 439) Loaʻa i nā pepa kila kila Ferritic he 10.5%–27% chromium, haʻahaʻa loa ka nui o ke kalapona (<0.1%), a he kakaikahi a ʻaʻohe nickel. He magnetic lākou a he kūpaʻa maikaʻi i ka haki ʻana o ka corrosion stress, akā ʻoi aku ka haʻahaʻa o ko lākou ʻano a me ka paʻakikī ma mua o ke kila kila austenitic. ʻAʻole hiki ke hoʻoikaika ʻia e ka mālama wela. Nā noi maʻamau: nā ʻōnaehana hoʻopau kaʻa, nā panela hale, a me nā mīkini uila o loko. I nā wahi akahai, ʻo ka papa 430 kahi koho haʻahaʻa haʻahaʻa maʻamau i ka papa 304.
Ke kila kila kila Duplex (e.g. 2205, 2507) Loaʻa i ke kila kila kila Duplex kahi microstructure i haku ʻia me ka hui ʻana o nā mea austenitic a me ferritic (ma kahi o 50/50). Ma muli o kona nui o ka chromium (21-26%), ka nui o ka nickel maʻamau (4-7%), a me ka nui o ka molybdenum (0-4%), ʻoi aku ka ikaika o ka kila kila kila 2205 ma mua o ka kila kila austenitic, me ka mālama ʻana i ke kūpaʻa maikaʻi loa i ka haki ʻana o ka chloride stress corrosion. Hoʻohana nui ʻia ke kila kila kila 2205 i nā moku lawe kemika, ka desalination wai kai, a me nā mea hoʻoheheʻe pulp. ʻO kona ikaika kiʻekiʻe e ʻae ai i ka hoʻohana ʻana i nā pepa lahilahi, no laila e hōʻemi ana i ke kaumaha a me ke kumukūʻai.
ʻO ke kila kila Martensitic (e laʻa, 410, 420) he 11-17% chromium a me kahi ʻoi aku ka nui o ke kalapona (0.1-1.2%), no laila e ʻae ai i ka paʻakikī ma o ka mālama wela. He magnetic lākou, ikaika, a kūpaʻa i ke komo ʻana, akā ʻoi aku ka haʻahaʻa o ko lākou kūpaʻa i ka pala ma mua o nā kila kila austenitic a duplex paha.
ʻO ka ʻokoʻa nui ma waena o nā papa kila kila 304 a me 316: ʻo ke kila kila 304, ka mea a mākou e ʻike pinepine ai i kēlā me kēia lā, ʻo ia ka pae hoʻohālikelike no ke kila kila kila ʻai a me ke aliʻi o ke kumukūʻai kūpono i nā noi hale. He kūpaʻa maikaʻi loa ia i ka pala, ka pale ʻana i ka popo, a me ke kūpaʻa wela kiʻekiʻe. No nā kīʻaha insulated, nā mea ʻaina, nā poho holoi kīhini, nā lako hana meaʻai, a me nā lako lumi ʻauʻau, ʻo 304 ke koho kūpono loa. He palekana, ʻaʻohe ʻawahia, a kūpaʻa i ka popo no ka hoʻohana ʻana i kēlā me kēia lā, kūpono no ka hapa nui o nā kūlana home, a hāʻawi i ka lōʻihi loa.
ʻO ke kila kila 316, ma ka ʻaoʻao ʻē aʻe, he mea lapaʻau/ʻoihana kiʻekiʻe. Hoʻohui ia i ka molybdenum i ka 304, e hoʻomaikaʻi nui ana i kona kūpaʻa i ka pala, ka waikawa a me ka alkali, a e ʻoi aku ka kūpaʻa i nā mahana kiʻekiʻe a me ka pala o ka wai kai. Hoʻohana nui ʻia ia i nā lako kīhini kiʻekiʻe, nā mea lapaʻau, nā paipu kemika, a me nā hale kahakai waho. ʻOiai ʻaʻole pono no ka hoʻohana ʻana i kēlā me kēia lā o ka home, ʻo 316 ka hopena kūpono loa no nā noi e koi ana i ke kūpaʻa kiʻekiʻe i ka pala.
ʻO kekahi ʻokoʻa koʻikoʻi e pili ana i ke kumukūʻai; ma muli o kona nui o ka nickel a me ka molybdenum, ʻoi aku ke kumukūʻai o ke kila kila 316 ma mua o ke kila kila 304. No laila, ʻo ke koho ma waena o kēia mau kila ʻelua e pili pinepine ʻia i nā koi noi kikoʻī, me nā palena kālā a me nā kumu kaiapuni.
He mea hana ʻenekinia maʻalahi loa ke kila kila, ʻoi aku hoʻi nā papa 304 a me 316, nona kahi kuleana koʻikoʻi i nā ʻoihana like ʻole ma muli o ko lākou mau waiwai kū hoʻokahi a me nā noi. Inā paha ma ka hana ʻana i ka meaʻai, ke kūkulu ʻana, nā kaʻa, nā lāʻau lapaʻau, nā kemika, a i ʻole ka ikehu, ua lilo mau nā pepa kila kila i koho hilinaʻi no nā ʻenekinia a me nā mea hana. I ka hoʻomau ʻana o nā ʻoihana e ulu a me ka ulu ʻana o ke koi no nā mea paʻa a pale i ka palaho, e hoʻonui wale ʻia ke koʻikoʻi o nā pepa kila kila.
Inā pono ʻoe e kūʻai i nā huahana pepa kila kila, e kaomi e hoʻokaʻaʻike mai iā mākou no ke kūkākūkā ʻana. E hāʻawi ʻo Jindalai Steel Group Co., Ltd. iā ʻoe i nā pane ʻoihana loa.
Ka manawa hoʻouna: Mei-11-2026
