Muaj tej teev, Lub melting ntawm kub yog feem ntau tiav siv oxygen-acetylene los yog roj fusion, Tab sis yog torches no kuj yog ib qho kev xaiv viable.
Kub melting taw tes stands ntawm 1063°C, Nrog ib boiling taw tes ntawm 2970°C thiab ib density ntawm 19.32 grams per cubic centimeter.
Melting kub necessitates ib specialized torch muaj peev xwm xeeb kub saum toj no 1000 degrees kom tsis txhob ua mob rau kub.