Ma waena o nā mea kila kila, 304 kila kila a me 201 kila kila ʻelua mau ʻano maʻamau. Loaʻa iā lākou kekahi mau ʻokoʻa i ka haku melemele, nā waiwai kino, a me nā noi.

ʻO ka mea mua, ʻo ka 304 stainless steel he kila kila me ke kūpaʻa corrosion kiʻekiʻe, ʻo ia ka 18% chromium a me 8% nickel, a me kahi ʻāpana liʻiliʻi o nā mea e like me ke kalapona, silicon, a me ka manganese. Hāʻawi kēia mea hana kemika i ka 304 stainless steel maikaʻi i ka corrosion resistance, oxidation resistance, a me ke kūpaʻa wela kiʻekiʻe. Loaʻa iā ia ka ikaika kiʻekiʻe a me ka ductility, no laila hoʻohana pinepine ʻia i ka hana ʻana i nā mea hana a me nā ʻāpana me nā koi kiʻekiʻe.

ʻO 201 ka mea kila kila he 17% a hiki i ka 19% chromium a me 4% a 6% nickel, a me kahi mea liʻiliʻi o ke kalapona, manganese, a me ka nitrogen. Ke hoʻohālikelike ʻia me 304 stainless steel, 201 stainless steel ka haʻahaʻa haʻahaʻa o ka nickel content, no laila ʻilihune kona kūpaʻa corrosion a me ke kūpaʻa wela kiʻekiʻe. Eia nō naʻe, ʻoi aku ka ikaika a me ka plasticity ʻo 201 stainless steel a kūpono ia no kekahi mau noi haʻahaʻa haʻahaʻa a me nā mea hoʻonaninani.

Ma nā ʻōlelo o nā waiwai kino, ʻoi aku ka nui o ka nui o ka 304 stainless steel, ma kahi o 7.93 grams / cubic centimeter, aʻo ka density o 201 stainless steel ma kahi o 7.86 grams / cubic centimeter. Eia kekahi, 304 stainless steel he maikaʻi ke kūpaʻa kino a hiki ke pale aku i ka corrosion mai ka lewa ākea, ka wai hou, ka mahu, a me ka media kemika; ʻoiai ʻo 201 hiki ke hoʻoulu ʻia ke kila kila ma kekahi mau wahi ʻino.

Ma keʻano o ka hoʻohanaʻana, hoʻohana pinepineʻia ka 304 stainless steel i ka hanaʻana i nā mea hana kemika, nā moku ikaika, nā mea hana meaʻai, a me nā māla'ē aʻe e pono ai ke kū'ēʻana i ka corrosion kiʻekiʻe a me ka pale wela kiʻekiʻe. Hoʻohana pinepine ʻia ʻo 201 stainless steel i ka hana ʻana i nā lako kīhini, nā mea hoʻonaninani hale, a me nā manawa ʻē aʻe e koi ai i ka ikaika kiʻekiʻe a me ka plasticity akā haʻahaʻa haʻahaʻa i ka corrosion.

Ma keʻano laulā, ʻoi aku ka maikaʻi o ka corrosion resistance 304, ke kūpaʻa wela kiʻekiʻe, a me ke kūpaʻa oxidation ma mua o ka 201 stainless steel, a ua kūpono ia no nā māla ʻoihana me nā koi kiʻekiʻe. ʻOi aku ka maikaʻi o ke kila kila 201 no nā noi me ka ikaika kiʻekiʻe a me nā koi plasticity akā haʻahaʻa haʻahaʻa nā koi kūpaʻa corrosion. Ke koho ʻana i nā mea kila kila, pono ke koho ʻia ma ke ʻano hoʻohana kikoʻī a me nā koi.