商品描述： 粘土质隔热耐火砖 Fire Clay Insulating Bricks 项目/指标 Item/Brand NG-1.5 NG-1.3a NG-1.0 NG-0.9 NG-0.8 NG-0.7 NG-0.6 NG-0.5 NG-0.4 体积密度 Bulk Density g/cm2, ≥ 1.5 1.3 1.0 0.9 0.8 0.7 0.6 0.5 0.4 常温耐压强度 CCS MPa, ≥ 7.0 6.0 4.0 3.5 3.0 2.5 2.0 1.5 1.2 重烧线变化 ℃xhr 1400 1400 1350 1300 1250 1250 1200 1150 1150 Permanent Liner Change ≤2% 导热系数（350±25）℃ W/m·k, ≤ Thermal conductivity 0.60 0.50 0.40 0.35 0.30 0.26 0.23 0.20 0.15