Refractories for circuit linings, ladle linings, converter linings

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Refractories for circuit linings, ladle linings, converter lining

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Refractories for circuit linings, ladle linings, converter linings

Item/Grade LM-70 LMC-P LMC-Y MA-60 MT18A MT14A
Aluminum and magnesium unburnable bricks Aluminum-magnesium-carbon bricks Aluminum-magnesium-carbon bricks Spinel Carbon Tile magnesium-carbon brick (refractory material)
Al2O3%              ≥ 70 65 60 60 — —
MgO %              ≥ 10 11 12 9 72 76
C %               ≥ — 6 8 8 18 14
fire resistance 0C        ≥ 1770 1790 1790 1790 — —
Display Hole Ratio AP  %     ≤ 20 18 12 8 3 4
BD g/cm3 %        ≥ 2.65 2.65 2.78 2.88 2.90 2.90
CCS MPa        ≥ 60 40 45 45 40 40
MOR MPa 14000C×0.5h ≥ — — — — 12 14
0.2MPa load softening onset temperature UUL 0C   ≥ 1420 1450 1600 1620 — —

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