He maeneene te mata o ngā pepa maitai kore waikura, he teitei te kirihou, he pakari, he kaha ā-mīhini hoki, ā, he ātete ki te waikura mai i ngā hau waikawa me ngā hau kawakore, ngā otinga, me ētahi atu mea. He maitai koranu tēnei e kore e waikura wawe, engari ehara i te mea tino ātete ki te waikura. Ko ngā pepa maitai kore waikura e pā ana ki ngā pepa maitai e ātete ana ki te waikura mai i ngā mea ngoikore pēnei i te hau, te mamaoa, me te wai, ko ngā pepa maitai ātete-waikawa ia e pā ana ki ngā pepa maitai e ātete ana ki te waikura mai i ngā mea waikura matū pēnei i te waikawa, te kawakore, me te tote.
He maha ngā momo o ngā pepa maitai kore waikura, ā, ko ngā raupapa tino nui o te ao hokohoko ko te austenitic, te ferritic, te duplex, me te martensitic. He āhuatanga ā-pūkaha motuhake tō ia momo, ā, he ātete ki te waikura, e tika ana mō ngā tono motuhake.
Kowiri tira Austenitic (300 Raupapa)
304/304L: He maitai kore waikura mō te nuinga o te wā. He ātete pai ki te waikura, he ngāwari ki te hanga, ā, he ngāwari ki te whakarewa.
316/316L: Mā te tāpiri i te 2-3% molybdenum, he tino ātete ki ngā pūhaumāota (wai moana, tote tango hukapapa).
321: Mā te tāpiri i ngā whakaū titanium, ka ārai i te pāwera i te wā e whakarewahia ana.
310S: Paemahana-teitei (tae atu ki te 1100°C), he pai mō ngā wāhanga oumu.
Kowiri tira Ferritic (raupapa 400, hei tauira, 430, 409, 439) Kei roto i ngā pepa kowiri tira Ferritic te 10.5%–27% chromium, he iti rawa te ihirangi waro (<0.1%), ā, he iti noa iho, kāore rānei he nikara. He aukume, ā, he pai te ātete ki te pakaru waikura ahotea, engari he iti iho te kaha o te hanga me te pakari i te kowiri tira austenitic. Kāore e taea te whakakaha mā te whakamahana. Ngā whakamahinga noa: ngā pūnaha putanga hau motuka, ngā panera whare, me ngā taputapu hiko o roto. I roto i ngā taiao ngawari, ko te kounga 430 he huarahi utu iti noa hei whakakapi i te kounga 304.
Kowiri tira takirua (hei tauira, 2205, 2507) He hanganga iti tō te kowiri tira takirua, he ranunga o ngā rauemi austenitic me te ferritic (tata ki te 50/50). Nā te nui o te chromium (21-26%), te nui o te nickel (4-7%), me te nui o te molybdenum (0-4%), he rua te kaha o te kowiri tira 2205 i tō te kowiri tira austenitic, me te pupuri tonu i te ātete pai ki te pakaru waikura i te ahotea chloride. He whānuitia te whakamahinga o te kowiri tira 2205 i roto i ngā kaipuke matū, te tango tote wai moana, me ngā mīhini keri penupenu. Nā tōna kaha nui ake ka taea te whakamahi i ngā pepa angiangi, ā, ka whakaitihia te taumaha me te utu.
Kei roto i te maitai kore waikura martensitic (hei tauira, 410, 420) te 11-17% o te chromium me te nui ake o te waro (0.1-1.2%), ā, ka taea te whakapakeke mā te whakamahana. He aukume, he kaha, he ātete ki te kakahu, engari he iti ake te ātete ki te waikura i ērā o ngā maitai kore waikura austenitic, takirua rānei.
Ko te rerekētanga matua i waenga i ngā pereti maitai kore waikura 304 me te 316: ko te maitai kore waikura 304, e tūtakihia ana e tātou i ia rā, koia te paearu mō te maitai kore waikura kounga kai, me te kingi hoki o te whai huatanga utu i roto i ngā tono whare. He tino pai tōna ātete ki te waikura, te ārai waikura, me te ātete ki te pāmahana teitei. Mō ngā kapu whakamahana, ngā taputapu kai, ngā totohu kīhini, ngā taputapu tukatuka kai, me ngā taputapu kaukau, ko te 304 te whiringa tino pai. He haumaru, kāore he paitini, ā, he ātete ki te waikura mō te whakamahinga o ia rā, he pai mō te nuinga o ngā āhuatanga kāinga, ā, he tino pakari.
Ko te maitai kore waikura 316, i tētahi atu taha, he rauemi kounga hauora/teitei-ahumahi. Ka tāpirihia e ia te molybdenum ki te 304, ka whakapai ake i tōna ātete ki te waikura, te ātete ki te waikawa me te kawakore, ā, ka nui ake tōna ātete ki ngā pāmahana teitei me te waikura o te wai moana. He whānuitia te whakamahinga i roto i ngā taputapu kīhini papai, ngā taputapu hauora, ngā paipa matū, me ngā whakaurunga takutai o waho. Ahakoa ehara i te mea nui mō te whakamahinga o ia rā, ko te 316 te otinga tino pai mō ngā tono e hiahia ana ki te ātete ki te waikura teitei.
Ko tētahi atu rerekētanga nui ko te utu; nā te nui ake o te nikara me te molibdenum i roto, he nui ake te utu o te maitai kore waikura 316 i te maitai kore waikura 304. Nō reira, ko te whiriwhiri i waenga i ēnei maitai e rua ka whakawhirinaki ki ngā whakaritenga tono motuhake, tae atu ki ngā here tahua me ngā āhuatanga taiao.
He rauemi hangarau tino maha ngā whakamahinga o te kowiri tira, inā koa ko ngā momo 304 me te 316, he mea nui ēnei i roto i ngā momo ahumahi nā ō rātou āhuatanga ahurei me ngā whakamahinga. Ahakoa i roto i ngā ahumahi tukatuka kai, hangahanga, motuka, hauora, matū, pūngao rānei, he whiringa pono tonu ngā pepa kowiri tira mō ngā miihini me ngā kaihanga. I te whanaketanga tonu o ngā ahumahi, me te tipu haere tonu o te hiahia mō ngā rauemi pakari, ātete-waikura, ka piki ake te hiranga o ngā pepa kowiri tira.
Mena kei te hiahia koe ki te hoko hua pepa maitai kore waikura, pāwhiri mai ki te whakapā mai ki a mātou mō te kōrero. Mā Jindalai Steel Group Co., Ltd. koe e whakarato ki ngā whakautu ngaio rawa atu.
Wā tuku: Mei-11-2026
