Paipu kila kila 321

ʻO ka paipu kila kila 310S he kila poepoe lōʻihi hakahaka, i hoʻohana nui ʻia i ka ʻaila, kemika, lāʻau lapaʻau, meaʻai, ʻoihana māmā, nā mea hana mīkini, a pēlā aku. Ke like ka ikaika o ke kūlou a me ka torsion, ʻoi aku ka māmā o ke kaumaha, a hoʻohana nui ʻia i ka hana ʻana i nā ʻāpana mīkini a me nā ʻano hana ʻenekinia. Hoʻohana pinepine ʻia hoʻi e like me nā mea kaua maʻamau, nā barela, nā pūpū, a pēlā aku.

ʻO 310s he kila kila austenitic chromium-nickel me ke kūpaʻa maikaʻi i ka oxidation a me ke kūpaʻa i ka corrosion. Ma muli o ka pakeneka kiʻekiʻe o ka chromium a me ka nickel, ʻoi aku ka maikaʻi o ka ikaika kolo o 310s, hiki ke hana mau i nā mahana kiʻekiʻe, a he kūpaʻa wela kiʻekiʻe maikaʻi.

Loaʻa iā ia ke kūpaʻa maikaʻi i ka oxidation, ke kūpaʻa i ka corrosion, ke kūpaʻa i ka waikawa a me ka paʻakai, a me ke kūpaʻa i ka mahana kiʻekiʻe. Hoʻohana kūikawā ʻia ka paipu kila kūpaʻa wela kiʻekiʻe no ka hana ʻana i nā paipu umu uila. Ma hope o ka hoʻonui ʻia ʻana o ke kalapona o ke kila kila austenitic, hoʻomaikaʻi ʻia ka ikaika ma muli o kona hopena hoʻoikaika paʻa. Hoʻokumu ʻia ka hoʻohuihui kemika o ke kila kila austenitic ma ka chromium a me ka nickel me nā mea e like me ka molybdenum, tungsten, niobium a me ka titanium. No ka mea, he ʻano cubic maka-kikowaena kona ʻano, he ikaika kiʻekiʻe kona a me ka ikaika kolo i nā mahana kiʻekiʻe.