WCB, chomwe ndi chidule cha Weldable Cast B-Grade Carbon Steel, ndi chitsulo chopangidwa ndi mpweya monga chinthu chachikulu cholumikizira. Cast steel ndi liwu lodziwika bwino la ma alloys opangidwa ndi chitsulo omwe amagwiritsidwa ntchito popanga ma castings omwe samasinthidwa eutectic panthawi yolimba. WCB ndi nambala yodziwika bwino yamavavu ndi zomangira zawo.
WCB cast carbon steel (UNS Code J03002) ndi yophimbidwa ndi ASTM A216/A216M muyezo (ASTM A216/A216M Steel Castings, Carbon, Oyenerera Fusion Welding, for High-Temperature Service ), zomwe mafotokozedwe ake amakwirira zitsulo za carbon zitsulo zamavavu, zopangira, flanges ndi zigawo zina zokhala ndi kupanikizika kwa ntchito yotentha kwambiri komanso mtundu wofunikira kuti ugwirizane ndi zoponya zina kapena zopangidwa mbali zachitsulo ndi fusion kuwotcherera. Gulu lofanana la WCB ku China muyezo ndi ZG280-520.
Pali magawo atatu a carbon steel omwe amaphimbidwa ndi ASTM A216/A216M, WCA (UNS J02502), WCB ndi WCC (UNS J02503). Kusankha kudzatengera kapangidwe kake ndi kagwiritsidwe ntchito, mawonekedwe amakina, komanso mawonekedwe a kutentha kwambiri.
Castings a WCB adzaperekedwa mu annealed, kapena normalized, kapena normalized ndi kupsya mtima malinga ndi ntchito mapeto. WCB ili ndi weldability wabwino, kotero kukonza zowotcherera kudzayang'aniridwa ndi miyezo yomwe imagwiritsidwa ntchito poyang'anira ma WCB castings.
Mpweya wa carbon ndi chitsulo chopangidwa ndi chitsulo chopangidwa ndi chitsulo chokhala ndi carbon monga chinthu chachikulu chothandizira ndi zinthu zina zochepa. Ponyani zitsulo zokhala ndi mpweya wochepa kwambiri wokhala ndi mpweya wochepera 0.2%, zitsulo zokhala ndi mpweya wapakati pa 0.2% mpaka 0.5%, ndikuponya zitsulo zokhala ndi mpweya wambiri wokhala ndi mpweya woposa 0.5%. Pamene zinthu za carbon zikuchulukirachulukira, mphamvu ndi kuuma kwa chitsulo cha carbon steel kumawonjezeka. Cast carbon steel ili ndi mphamvu zambiri, pulasitiki ndi kulimba, komanso mtengo wotsika. Amagwiritsidwa ntchito m'makina olemetsa kupanga zinthu zomwe zimanyamula katundu wolemera, monga zoyimitsa mphero, makina osindikizira a hydraulic, etc. Amagwiritsidwa ntchito pamagalimoto apamtunda kupanga mbali zomwe zimakhudzidwa ndi mphamvu zazikulu, monga ma bolster, mafelemu am'mbali. , mawilo ndi ma couplers.
