... .low porosity and abrasion 3.high strength Magnesium Carbon Brick has the advantage of good thermal shock resistance,oxidation ... temperature,also good spalling resistance.Magnesium carbon brick has long service time.Magnesium Carbon Brick:MgO,%: 97.5Residual carbon,%: 5. ... strength,Mpa: 600Modulus of rupture,Mpa: 210 Magnesium Carbon Brick:maily used in molten steel ladle,oxygen steelmaking converter, ...