Bakin Karfe - Matsayi 253MA (UNS S30815)

253MA matsayi ne wanda ya haɗa kyawawan kaddarorin sabis a yanayin zafi mai yawa tare da sauƙin ƙirƙira. Yana tsayayya da iskar oxygen a yanayin zafi har zuwa 1150 ° C kuma yana iya ba da sabis mafi girma zuwa Grade 310 a cikin carbon, nitrogen da sulfur mai ɗauke da yanayi.

Wani nadi na mallakar mallaka wanda ke rufe wannan matakin shine 2111HTR.

253MA ya ƙunshi ƙananan abun ciki na nickel, wanda ke ba shi wasu fa'ida wajen rage yanayin sulphide idan aka kwatanta da manyan abubuwan nickel da kuma zuwa Grade 310. Haɗin babban silicon, nitrogen da abun ciki na cerium yana ba da ƙarfe mai kyau kwanciyar hankali na oxide, ƙarfin zafi mai girma da kyau kwarai. juriya ga hazo lokaci na sigma.

Tsarin austenitic yana ba da wannan darajar kyakkyawan ƙarfi, har zuwa yanayin zafi na cryogenic.

Abubuwan Maɓalli

An ƙayyade waɗannan kaddarorin don samfurin birgima (faranti, takarda da nada) azaman Grade S30815 a cikin ASTM A240/A240M. Irin wannan amma ba dole ba ne kaddarorin da aka keɓance don wasu samfuran kamar bututu da mashaya a cikin ƙayyadaddun su.

Abun ciki

An ba da jeri na yau da kullun don nau'ikan bakin karfe na 253MA a cikin tebur 1.

Tebur 1.Abubuwan da aka haɗa don 253MA bakin karfe