Bakin karfe Enlbow, bakin karfe ƙirƙira pipings
Don yin tsari da kuma abun da ke ciki na sutturar bakin karfe, wanda yake da muhimmanci musamman ga albarkatun kasa, saboda yawan zafin jiki da karancin sanyaya. Tare da babban yanayin zafi, aikin atomic yana ƙaruwa da narkewar lokaci na lokaci-lokaci, da kuma kayan aikin sunadarai suna iya zama uniform. An samo tsarin daidaitaccen lokaci bayan sanyaya da sauri.
Bakin karfe yawanci ana yin shi da carbon karfe kuma ya ƙunshi babban rabo na cr, ni da sauran alloys, da kuma rikice-rikice na iya kai sama da 20%. Na'urara da aka saba amfani da ƙarfe na ƙarfe sune: 304, 304l, 321, 316, 316l, 1Cr18ni9ti, 0Cr18ni9. Lambar ƙarfe na farko yana wakiltar lambar shine Japan da Amurka, kuma na ƙarshe (1cr18ni9ti) shine lambar gida.