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High-quality Raw Pure Industrial-use fire refractory brick ... Ad. Competitive price curved fire clay brick for refractory industry Item Index Al2O3 % 42 - 45 Fe2O3 % 2.5 max Refractoriness ℃ 1740 min Refractoriness under load (0.2MPa) ℃ 1350 min Linear change on reheating %(1400℃, 2h) +0.1~ -0.4 Apparent porosity % 24 max Cold crushing strength Mpa 30 min Payment terms L/C,T ...
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