WCB, nke bụ mbiri nke Weldable Cast B-Grade Carbon Steel, bụ ihe nkedo nke nwere carbon dị ka ihe bụ isi ihe na-ekekọta alloy. Igwe ihe nkedo bụ okwu izugbe maka ihe nkedo dabere na igwe eji eme ihe nkedo na-anaghị eme mgbanwe eutectic n'oge usoro siri ike. WCB bụ nọmba ihe eji eme valvụ na ngwa ha.
WCB cast carbon steel (UNS Code J03002) kpuchie ọkọlọtọ ASTM A216/A216M (ASTM A216/A216M igwe nkedo, Carbon, dabara maka ịgbado ọkụ, maka ọrụ oke okpomọkụ), nke nkọwapụta na-ekpuchi ihe nkedo carbon ígwè maka valves, akwa akwa, flanges na akụkụ ndị ọzọ nwere nrụgide maka ọrụ okpomọkụ dị elu na àgwà achọrọ maka mgbakọ na nkedo ndị ọzọ ma ọ bụ rụrụ akụkụ ígwè site fusion ịgbado ọkụ. Ọkwa nke WCB na ọkọlọtọ China bụ ZG280-520.
Enwere akara ule atọ nke carbon steel kpuchie na nkọwapụta nke ASTM A216/A216M, WCA (UNS J02502), WCB na WCC (UNS J02503). Nhọrọ ga-adabere n'ichepụta na ọnọdụ ọrụ, ihe eji arụ ọrụ, yana njirimara okpomọkụ dị elu.
A ga-ebunye ihe nkedo nke WCB n'ime annealed, ma ọ bụ hazie ya, ma ọ bụ hazie ya na iwe ọkụ dịka ojiji njedebe siri dị. WCB nwere ezigbo weldability, yabụ a ga-enyocha nrụzi weld n'otu ụkpụrụ dị mma nke a na-eji nyochaa nkedo WCB.
Carbon ígwè bụ ihe nkedo nke dabeere na ígwè nwere carbon dị ka ihe bụ isi alloying element na obere ego nke ihe ndị ọzọ. Tụba nchara nke nwere obere carbon nwere ihe na-erughị 0.2%, wụba nchara nke nwere obere carbon nwere ọdịnaya carbon nke 0.2% ruo 0.5%, ma tụba nchara nwere carbon dị elu karịa 0.5%. Ka carbon ọdịnaya na-abawanye, ike na ike nke nkedo carbon ígwè na-abawanye. Ihe nkedo carbon nwere ike dị elu, plasticity na siri ike, yana ọnụ ala dị ala. A na-eji ígwè ọrụ dị arọ na-emepụta akụkụ ndị na-ebu ibu dị arọ, dị ka igwe igwe na-atụgharị igwe, ebe a na-ebipụta hydraulic, wdg. , wiil na couplers.
