WCB, wanda shine gajarta na Weldable Cast B-Grade Carbon Karfe, simintin ƙarfe ne tare da carbon a matsayin babban abin haɗawa. Ƙarfe na simintin simintin gyare-gyare na gabaɗaya don samar da simintin gyare-gyare na tushen ƙarfe da ake amfani da su don samar da simintin gyare-gyare waɗanda ba sa samun canjin eutectic yayin aikin ƙarfafawa. WCB lambar abu ce gama gari don bawuloli da kayan aikin su.
WCB jefa carbon karfe (UNS Code J03002) an rufe shi da ASTM A216/A216M misali (ASTM A216/A216M Karfe Castings, Carbon, Dace da Fusion Welding, don High-Zazzabi Sabis), wanda ƙayyadaddun ya rufe carbon karfe simintin gyaran kafa bawuloli, kayan aiki, flanges da sauran sassa masu ɗauke da matsi don sabis ɗin zafin jiki mai girma da ingancin da ake buƙata don haɗuwa tare da wasu simintin gyare-gyare ko sassa na karfe da aka yi ta hanyar walƙiya fusion. Madaidaicin darajar WCB a ma'aunin China shine ZG280-520.
Akwai maki uku na carbon karfe da aka rufe cikin ƙayyadaddun ASTM A216/A216M, WCA (UNS J02502), WCB da WCC (UNS J02503). Zaɓin zai dogara ne akan ƙira da yanayin sabis, kaddarorin inji, da halayen zafin jiki.
Za a shirya simintin simintin gyare-gyare na WCB a cikin ruɗewa, ko daidaitawa, ko daidaitawa da kuma zafi gwargwadon amfani da ƙarshen. WCB tana da kyakyawar walƙiya, don haka za a duba gyare-gyaren weld zuwa daidaitattun ƙa'idodi waɗanda ake amfani da su don duba simintin gyare-gyare na WCB.
Carbon karfe simintin simintin gyare-gyaren ƙarfe ne tare da carbon a matsayin babban abin haɗawa da ƙaramin adadin sauran abubuwa. Zuba ƙananan karafa mai ƙarancin carbon tare da abun cikin carbon ƙasa da 0.2%, jefa matsakaicin-carbon ƙarfe tare da abun ciki na carbon na 0.2% zuwa 0.5%, da jefa manyan karafa tare da abun cikin carbon sama da 0.5%. Yayin da abun cikin carbon ya ƙaru, ƙarfi da taurin simintin carbon karfe yana ƙaruwa. Cast carbon karfe yana da babban ƙarfi, filastik da tauri, da ƙarancin farashi. Ana amfani da shi a cikin injina masu nauyi don kera sassan da ke ɗaukar nauyi mai nauyi, irin su mitsiyoyin niƙa, sansanonin latsa ruwa na ruwa, da dai sauransu. Ana amfani da shi akan motocin jirgin ƙasa don kera sassan da ke da ƙarfi da tasiri, kamar bolsters, firam ɗin gefe. , ƙafafun da ma'aurata.
