1: He tino tika ngā waitohu hinu e whakakīia ana e mātou (pērā i a ExxonMobil me Shell) me te rahinga whakakī. Kua whakamahia e mātou te hangarau pauna me te werohanga hinu tika (kia kore ai e kore e ōrite te werohanga hinu me te whakaputa wera).
2: Te maimoatanga wera me te whakarerekētanga mata (te whakatau i te ātete kakahu), te pakeke me te hohonu o te paparanga whakapakeke
Mā ngā tukanga whakamahana (pēnei i te martensitic me te bainitic quenching) ka whakarite kia ōrite te pakeke (HRC 61-65) me te paparanga whakapakeke hohonu me te whai hua. Te pumau o ngā āhuatanga. Mō ngā āhuatanga mahi pāmahana teitei (pēnei i ngā rango whakamaroke me ngā motuka), kua whakahaerehia e mātou he maimoatanga whakau motuhake. Kāore te rahi o ngā peera e tino rerekē i ngā pāmahana teitei, ā, ka ārai i te hopu.