Nau'in Bakin Karfe na 440, kamar yadda aka sani da "reza ƙarfe karfe," ƙarfe ne mai ƙarfi mai ƙarfi-carbon chromium. Lokacin da aka sanya shi ƙarƙashin maganin zafi yana kaiwa ga mafi girman matakan taurin kowane nau'in bakin karfe. Nau'in Bakin Karfe 440, wanda ya zo a cikin maki huɗu daban-daban, 440A, 440B, 440C, 440F, yana ba da juriya mai kyau na lalata tare da juriya na abrasion. Ana iya sarrafa dukkan maki cikin sauƙi a cikin yanayin da aka cire su, kuma suna ba da juriya ga acid mai laushi, alkalis, abinci, ruwa mai kyau, da iska. Nau'in 440 na iya taurare zuwa kayan aikin Rockwell 58.
Godiya ga kowane maki mafi kyawun kaddarorin, duk maki na Nau'in Bakin Karfe 440 ana iya samun su a cikin samfura daban-daban da suka haɗa da:
- Pivot fil
- Kayan aikin hakori da na tiyata
- Wuka mai inganci
- Kujerun bawul
- Nozzles
- Tushen mai
- Abubuwan da ke jujjuyawa
Kowane aji na Nau'in Bakin Karfe 440 an yi shi ne da sinadari na musamman. Ya kamata a lura cewa kawai babban bambanci tsakanin maki shine matakin Carbon
Nau'in 440A
- Cr 16-18%
- Mn 1%
- Si 1%
- Mo 0.75%
- P 0.04%
- S 0.03%
- C 0.6-0.75%
Nau'in 440B
- C 0.75-0.95%
Nau'in 440C da 440F
- C 0.95-1.20%
Lokacin aikawa: Oktoba-09-2020