Waxaa jira shan nooc oo aasaasi ahBir daxal laheyn:austenitic, ferritic, martensitic, duplex, iyo adkaanta roobabka.
(1) Biraha birta ah ee Austenitic maaha magnetic, iyo darajooyinka birta wakiilka waa 18% chromium oo lagu daray iyo xaddi nikkel ah oo lagu daray si loo kordhiyo caabbinta daxalka.Waxaa si weyn loo isticmaalaa darajooyinka birta.
(2) Ferrite waa birlab, curiyaha chromium-na waa maadada ugu weyn, oo leh saami dhan 17%.Qalabkani wuxuu leeyahay iska caabin oksaydh oo wanaagsan.
(3) Martensitic steel steel sidoo kale waa magnetic, waxa ku jira chromium inta badan waa 13%, waxaana ku jira qayb habboon oo kaarboon ah, kaas oo lagu adkeyn karo deminta iyo xanaaqa.
(4) Duplex steel steel wuxuu leeyahay qaab-dhismeed isku dhafan oo ah ferrite iyo austenite, waxa ku jira chromium waa inta u dhaxaysa 18% iyo 28%, iyo nuxurka nikelku waa inta u dhaxaysa 4.5% iyo 8%.Waxay aad ugu adkaysanayaan daxalka chloride.Natiijooyin wanaagsan
(5)Maaddada caadiga ah ee chromium ee birta aan roobka lahayn ee roobabku waa 17, waxaana lagu daraa qaddar go'an oo nikkel ah, naxaas ah iyo niobium, kuwaas oo lagu adkeyn karo roobka iyo gabowga.
Marka loo eego qaab-dhismeedka biraha, waxa loo qaybin karaa:
(1)Ferritic ahama (400 taxane), chromium ahama, inta badan matala Gr13, G17, Gr27-30;
(2)Austenitic ahama (300 taxane), chromium-nickel ahama, inta badan matala 304, 316, 321, iwm;
(3)Martensitic ahama birta (200 taxane), chromium-manganese ahama, content kaarboon sare, inta badan wakiil 1Gr13, iwm.
Waqtiga boostada: Seb-28-2022