Lapho imitha steel workpieces, ukukhethwa steel, ngokuvamile ukucatshangelwa okuyinhloko: izakhiwo mechanical (amandla, ukuqina, njll), ukucubungula ukusebenza kanye nezindleko.Kodwa ezingxenyeni zama-galvanized, ukwakheka kokukhethwa kwezinto zokwakha, ikhwalithi ye-hot-dip galvanizing inethonya elikhulu.

Enye yokugqwala kwendlela yokuvimbela ukugqwala kwensimbi yezindawo ezahlukahlukene kodwa kufanele inake ukusetshenziswa kwezici, cishe yonke insimbi ifaneleka ukufakwa uthayela oshisayo, njengensimbi egoqelwe ebandayo, egoqwe ngamakhaza, insimbi ecijile, insimbi eyakhiwe, izinto zensimbi ezisansimbi ezifana nensimbi, ikakhulukazi ezokulwa nokugqwala zingaba indlela yokufaka i-hot-dip galvanizing, ukuze kuthuthukiswe impilo.

Amanani asetshenziswa ikhabhoni ejwayelekile kanye nengxubevange ephansi enamandla aphezulu imikhiqizo yamagalani yensimbi evame kakhulu.Kodwa-ke, izithako zamakhemikhali eziyinhloko zokuthola ungqimba oluhle kakhulu lwensimbi yensimbi yilezi: okuqukethwe kwekhabhoni ≤0.25%, okuqukethwe kwe-phosphorus ≤0.04%, okuqukethwe kwe-manganese ≤1.35%, okuqukethwe kwe-silicon ≤0.03% noma 0.15% ~ 0.25 % (0.03% kuya ku-0.03% I-0.15% yokulahlekelwa kwensimbi enobudlova, isikhumba esimnyama sokusebenza, ukuxebuka).Ngokusobala, akuwona wonke ama-carbon ajwayelekile kanye nensimbi yesakhiwo sokuqina kwe-alloy ephezulu ehlangabezana nezimfuneko zalolu hlu lokubhaliwe.