ʻO ka puna wai hoʻouka haʻahaʻa haʻahaʻa pae ʻano pale pale
A21F-16C, A21H-16C, A21H-40, A21H-64, A21Y-100, A21H-160
A21W-16P, A21W- 40P, A21F -40P, A21W-64P, A21W-100P, A21W-160P
KA21Y-16C, KA21Y-16P
A21Y-16R, A21Y-40R, A21 Y-64R, A21Y-100R, A21Y-160R
Hoʻohana ʻia ke ʻano A21F, A21H-C no nā lako a me ka pipeline o ka lewa, ammonia, petroleum gas, etc. medium he aha ka mahana hana ma lalo o 200°C. Hoʻohana ʻia ka ʻano A21W-P, R no nā mea hana a me ka pipeline o ka maikaʻi me ke kinoea corrode a me ka wai wai ka mea i emi iho ka mahana hana ma mua o 200 ° C. E lawe i nā mea pale kaomi ʻē aʻe.
Hoʻohana ʻia ka ʻano KA21 Y no ke kinoea ʻaila liquefied i ka emi o ka mahana hana ma mua o 100°C.