Umahluko phakathi kwe-304 kunye ne-321 yensimbi engenasici
Umahluko omkhulu phakathi kwe-304 kunye ne-321 yensimbi engenasici kukuba i-304 ayinayo i-Ti, kwaye i-321 iqulethe i-Ti. I-Ti inokukuphepha ukuvuselela insimbi engenasici. Ngamafutshane, kukuphucula ubomi benkonzo yensimbi engenasici kwiqondo lokushisa eliphezulu. Oko kukuthi, kwindawo yokushisa ephezulu, i-321 ipleyiti yensimbi engenasici Ifaneleka ngakumbi kune-304 yensimbi engenasici. Zombini i-304 kunye ne-321 ziyi-austenitic stainless steels, kwaye ukubonakala kwazo kunye nemisebenzi yomzimba ifana kakhulu, kunye nentlukwano encinci yokwakheka kweekhemikhali.
Okokuqala, i-321 insimbi engenasici iyadingeka ukuba iqulethe ixabiso elincinci le-titanium (Ti) element (ngokwemigaqo ye-ASTMA182-2008, umxholo wayo we-Ti akufanele ube ngaphantsi kwe-5 amaxesha ekhabhoni (C), kodwa ungabi ngaphantsi kwe-0.7 I-% Qaphela, i-304 kunye ne-321 Umxholo we-carbon (C) ngu-0.08%), ngelixa i-304 ingenayo i-titanium (Ti).
Okwesibini, iimfuno zomxholo we-nickel (Ni) zihluke kancinci, i-304 iphakathi kwe-8% kunye ne-11%, kwaye i-321 iphakathi kwe-9% kunye ne-12%.
Okwesithathu, iimfuno zomxholo we-chromium (Cr) zahlukile, i-304 iphakathi kwe-18% kunye ne-20%, kwaye i-321 iphakathi kwe-17% kunye ne-19%.
Ixesha lokuposa: Jan-19-2020