Isingeniso ku
I-Ti ye-321 insimbi engagqwali ikhona njengento eqinisayo, kodwa futhi iyinsimbi enamandla okushisa, engcono kakhulu kune-316L.Insimbi engagqwali engu-321 inokumelana okuhle nokuhuzuka kuma-asidi e-organic kanye nama-asidi we-inorganic wokugxila okuhlukile namazinga okushisa, ikakhulukazi emithonjeni ye-oxidizing, esetshenziselwa ukukhiqiza iziqukathi ze-asidi ezingagugi kanye nezinsimbi namapayipi angagugi.
I-321 insimbi engagqwali i-Ni-Cr-Ti austenitic insimbi engagqwali, ukusebenza kwayo kufana kakhulu no-304, kodwa ngenxa yokwengezwa kwe-titanium yensimbi, ukuze ibe nokugqwala okungcono komngcele wokusanhlamvu namandla okushisa aphezulu.Ngenxa yokwengezwa kwensimbi ye-titanium, ilawula ngempumelelo ukwakheka kwe-chromium carbide.
Insimbi engagqwali engu-321 inokushisa okuphezulu kakhulu kokusebenza kwe-Stress Rapture kanye nezinga lokushisa eliphezulu I-Creep Resistance stress mechanical properties zingcono kune-304 steel stainless.Ifanele izingxenye ze-welding ezisetshenziswa ekushiseni okuphezulu.
Ukwakheka kwamakhemikhali
C :≤0.08 Si:≤1.00 Mn：≤2.00 S ：≤0.030 P ：≤0.045 Cr:17.00～19.00
Inani:9.00-12.00 Ti:≥5×C%
Ukuminyana kokuminyana
Ukuminyana kwensimbi engagqwali 321 kungu-7.93g/cm3
Izakhiwo zemishini
σb (MPa):≥520 σ0.2 (MPa):≥205 δ5 (%)：≥40 ψ (%)：≥50
Ukuqina:≤187HB;≤90HRB;≤200HV
Isikhathi sokuthumela: Aug-03-2023
