ʻO 201 stainless steel he 200 series austenitic stainless steel i hoʻomohala ʻia e ka hoʻololi ʻana i ka manganese, nitrogen a me nā mea ʻē aʻe me ka nickel. Loaʻa iā ia ke kūpaʻa corrosion maikaʻi a me nā hana hoʻoili wela a me ke anuanu, i lawa e hoʻololi i nā kūlanakauhale o loko, uka a me ka hoʻohana waho. 304 huahana kila kuhiliʻole i hoʻohana 'ia i loko o ka haʻahaʻa corrosive kaiapuni.
No ka hoʻomau ʻana o ke kumukūʻai o ka nickel, nui nā mea hana e ʻimi nei i nā huahana ʻē aʻe o ka austenitic stainless steel me nā hana like me 304 stainless steel. I nā makahiki mua o 1930, ua hana ʻia ka chromium-manganese austenitic stainless steel, a ua hoʻololi ka manganese i ke kila i kahi nickel. Ma hope o kēlā, ua hana hou ʻia ka noiʻi ʻana ma ka māhele kikoʻī kikoʻī, ua hoʻohana ʻia ka nitrogen a me ke keleawe, a ua hoʻohana ʻia nā mea e like me ke kalapona a me ka sulfur, i hoʻopilikia nui i ka hana ʻikepili, etc.
I kēia manawa, ʻo nā ʻano nui o ka 200 series stainless steel: J1, J3, J4, 201, 202. Aia kekahi 200 mau māka kila i loaʻa ka mana haʻahaʻa o ka ʻike nickel. ʻO 201C, he 201 stainless steel extension steel grade i hoʻomohala ʻia e kahi mea kanu kila ma Kina i ka wā ma hope. ʻO ka hōʻailona maʻamau o 201 ka: 1Cr17Mn6Ni5N. Hoʻomau ka 201C ma ke kumu o 201 E ho'ēmi i ka maʻiʻo nickel a hoʻohui i ka mea manganese.
201 hoʻohana kila kuhiliʻole
No ka mea ʻo 201 stainless steel nā hiʻohiʻona o ke kūpaʻa waika, ke kūpaʻa alkali, ke kiʻekiʻe kiʻekiʻe, ka polishing me ka ʻole o nā ʻōpū, a ʻaʻohe pinholes, kūpono loa ia no ka hana ʻana i nā hihia like ʻole a me nā uhi lalo o ke kaula, a he nui nā mea ʻē aʻe i hoʻohana ʻia no nā paipu hoʻonaninani, ʻO kekahi mau huki pāpaʻu. nā huahana no nā paipu ʻoihana.
201 mea kila kila kila
He manganese a me ka naikokene nā mea o 201 pā kila kila ma kahi o kekahi a i ʻole nā mea nickel āpau. No ka mea hiki ke hoʻohua i ka maʻi nickel haʻahaʻa a ʻaʻole kaulike ka ferrite, ua hoʻemi ʻia ka ʻike ferrochrome ma 200 series stainless steel i 15% -16 %, Ua hāʻule kekahi mau kūlana i 13% -14%, no laila ke kūpaʻa corrosion o 200 series stainless. ʻAʻole hiki ke hoʻohālikelike ʻia ke kila me ka 304 a i ʻole nā mea kila kila ʻē aʻe. Eia kekahi, ma lalo o nā kūlana acidic i maʻa mau i nā ʻāpana corroded o ka wahi hōʻiliʻili a me ke āpau, e hoʻemi ʻia ka hopena o ka manganese a me ke keleawe a me ka hopena o ka passivation hou ma lalo o kekahi mau kūlana. ʻO ka nui o ka pōʻino o ka chromium-manganese stainless steel ma lalo o kēia mau kūlana ma kahi o 10-100 mau manawa o ka 304 stainless steel. A no ka mea, ʻaʻole hiki i ka hana hana ke hoʻomalu pono i ke koena o ka sulfur a me ke kalapona i loko o kēia mau kila, ʻaʻole hiki ke ʻike ʻia ka ʻikepili, ʻoiai ke hoʻihoʻi ʻia ka ʻikepili. No laila, inā ʻaʻole i ʻōlelo ʻia he mau kila chromium-manganese lākou, e lilo lākou i mea hoʻoheheʻe ʻia i ke kila kila, kahi e loaʻa ai ka ʻike manganese kiʻekiʻe. No laila, ʻaʻole pono e hoʻololi a hoʻololi ʻia kēia mau kila kila a me 300 series stainless steel. Ua like loa nā mea ʻelua ma ke ʻano o ka pale ʻana i ka corrosion.
Ka manawa hoʻouna: Jan-19-2020