Ngā mara tono o ngā koranu motuhake i roto i te umanga hinu:
He umanga maha-mātauranga, he ahumahi hangarau-rahi, he ahumahi whakapaipai-rahi te tūhuratanga me te whakawhanaketanga hinu, e hiahia ana ki te whakamahi i te tini o ngā rauemi me ngā hua whakarewa me ngā āhuatanga me ngā whakamahinga rerekē. I te whanaketanga o ngā puna hinu me te hau tino hohonu me ngā puna tino piko me ngā mara hinu me te hau kei roto ko te H2S, te CO2 me te Cl-, kei te piki haere te tono o ngā rauemi kowiri tira me ngā whakaritenga mahi ārai-waikura.
Nā te whanaketanga o te umanga matū hinu me te whakahoutanga o ngā taputapu matū hinu kua piki ake ngā whakaritenga mō te kounga me te mahi a te maitai kore waikura. Kāore i te ngāwari ake ngā whakaritenga mō te ātete ki te waikura, te ātete ki te pāmahana teitei me te ātete ki te pāmahana iti o te maitai kore waikura, engari he tino pakari ake. I taua wā anō, he umanga pāmahana teitei, pēhanga teitei me te paitini hoki te umanga matū hinu, he rerekē i ētahi atu umanga. Kāore i te mārama ngā hua o te whakaranu rauemi. Ki te kore e taea te kī taurangi i te kounga o ngā rauemi maitai kore waikura i roto i te umanga matū hinu, ka kore e taea te whakaaro ngā hua. Nō reira, me whakapai ake ngā umanga maitai kore waikura o te whare, inā koa ngā umanga paipa maitai, i te ihirangi hangarau me te uara tāpiri o ngā hua i te wā e taea ai kia nohoia ai te mākete hua teitei.
E whakamahia whānuitia ana i roto i ngā tauhohenga i roto i ngā taputapu matū hinu, ngā ngongo puna hinu, ngā tokotoko oro i roto i ngā puna hinu waikura, ngā ngongo porowhita i roto i ngā oumu matū hinu, me ngā wāhanga me ngā wae o ngā taputapu keri hinu me te hau.
Ngā koranu motuhake e whakamahia whānuitia ana i roto i te umanga hinu:
Kowiri tira: 316LN, 1.4529, 1.4539, 254SMO, 654SMO, me ētahi atu
Tino koranu: GH4049
Ngā koranu i hangaia ki te nikara: Koranu 31, Koranu 926, Incoloy 925, Inconel 617, Nikara 201, me ētahi atu
Koranu ātete waikura: Incoloy 800H,Hastelloy B2, Hastelloy C, Hastelloy C276
