ʻO Nickel 200 (UNS N02200) a me 201 (UNS N02201) nā mea hana nickel i hoʻopaʻa ʻia. ʻOkoʻa wale lākou i nā pae kalapona kiʻekiʻe loa i kēia manawa—0.15% no Nickel 200 a me 0.02% no Nickel 201.
Hoʻopili maʻamau ka pā Nickel 200 i ka lawelawe ʻana ma nā mahana ma lalo o 600ºF (315ºC), no ka mea ma nā wela kiʻekiʻe hiki iā ia ke pilikia i ka graphitization hiki ke hoʻololi i nā waiwai. I nā mahana kiʻekiʻe, pono e hoʻohana ʻia ka pā Nickel 201. Ua ʻae ʻia nā papa ʻelua ma lalo o ka ASME Boiler and Pressure Vessel Code Section VIII, Division 1. Ua ʻae ʻia ka pā Nickel 200 no ka lawelawe ʻana a hiki i 600ºF (315ºC), ʻoiai ʻo Nickel 201 ka pā a hiki i 1250ºF (677ºC).
Hāʻawi nā papa ʻelua i ka pale ʻana i ka corrosion koʻikoʻi i ka soda caustic a me nā alkalis ʻē aʻe. ʻOi aku ka maikaʻi o ka hana ʻana o nā alloys i ka hōʻemi ʻana i nā kaiapuni akā hiki ke hoʻohana ʻia ma lalo o nā kūlana oxidizing e hana ai i kahi kiʻiʻoniʻoni passive oxide. Kūʻē lāua ʻelua i ka ʻinoʻino e ka wai maʻemaʻe, ka wai maoli a me ka wai kai kahe akā hoʻouka ʻia e ka wai kai kū.
ʻO Nickel 200 a me 201 he ferromagnetic a hōʻike i nā waiwai mechanical ductile ma kahi ākea ākea.
Hoʻopili maʻalahi ʻia nā māka ʻelua a hana ʻia e nā hana hana hale kūʻai maʻamau.
Ka manawa hoʻouna: Oct-10-2020