He hononga, he rerekētanga hoki tō te ngongo koranu me te ngongo tuimotu, kāore e taea te whakapoauau. Ko te paipa koranu he paipa rino e hanga ana i runga i te rauemi hanga (arā, te rauemi), e ai ki te ingoa he paipa koranu te mea hanga; ko te paipa tuimotu e hanga ana i runga i te tukanga hanga (tuimotu) o te paipa rino, he rerekē tēnei i te paipa tuimotu he paipa whakarewa, tae atu ki te paipa whakarewa hononga tika me te paipa porowhita.

No te paipa maitai koranu A335P5 te paipa koranu e whakamahia ana mō te nuinga o te wākōhua ​​pēhanga iti me te pēhanga waenga(ko te pēhanga mahi kāore i te neke atu i te 5.88Mpa, ko te pāmahana mahi i raro iho i te 450℃) he paipa mata whakamahana; Whakamahia mōpūwero pēhanga teitei(ko te pēhanga mahi te tikanga kei runga ake i te 9.8Mpa, ko te pāmahana mahi kei waenganui i te 450℃ ~ 650℃) ngā paipa mata whakamahana, te economizer, te superheater, te reheater, te paipa ahumahi petrochemical, me ētahi atu.

Ko ētahi atu rauemi ko: 16-50Mn, 27SiMn, 40Cr, Cr5Mo, 12Cr1MoV, 12Cr1MovG, 15CrMo, 15CrMoG, 15CrMoV, 13CrMo44, T91, 27SiMn, 25CrMo, 30CrMo, 35CrMo, 35CrMoV, 40CrMo, 45CrMo, Cr9Mo, 10CrMo910, 15Mo3,A335P11P22, P91, T91.