Okwu mmalite
Ti nke 321 igwe anaghị agba nchara dị ka ihe na-eme ka ọ kwụsie ike, mana ọ bụkwa igwe na-ekpo ọkụ, nke dị mma karịa 316L.321 igwe anaghị agba nchara nwere ezigbo nguzogide abrasion na organic acids na inorganic acid nke dị iche iche na ọnọdụ okpomọkụ, karịsịa na mgbasa ozi oxidizing, nke a na-eji emepụta ihe mkpuchi acid na-eguzogide ọgwụ na ihe mkpuchi na-eguzogide ọgwụ na pipeline.
321 igwe anaghị agba nchara bụ Ni-Cr-Ti austenitic igwe anaghị agba nchara, ya arụmọrụ dị nnọọ ka 304, ma n'ihi na mgbakwunye na nke metal titanium, nke mere na ọ nwere mma ọka ókè corrosion iguzogide na elu okpomọkụ ike.N'ihi mgbakwunye nke titanium metal, ọ na-achịkwa nke ọma nguzobe nke chromium carbide.
321 igwe anaghị agba nchara nwere ọmarịcha okpomọkụ dị elu arụmọrụ mgbawa na oke okpomọkụ na-eguzogide nrụgide nrụnye akụrụngwa dị mma karịa igwe anaghị agba nchara 304.Ọ dabara maka ihe ịgbado ọkụ ejiri na oke okpomọkụ.
Ngwakọta kemịkalụ
C:≤0.08 Si:≤1.00 igwe:≤2.00 S ：≤0.030 P
Ni: 9.00 ~ 12.00 Ti：≥5×C%
Njupụta nke njupụta
Njupụta nke igwe anaghị agba nchara 321 bụ 7.93g / cm3
Ngwa igwe
σb (MPa): ≥520 σ0.2 (MPa):≥205 δ5 (%)：≥40 ψ (%)：≥50
Isi ike: ≤187HB;≤90HRB;≤200HV
Oge nzipu: Ọgọst-03-2023
