Shandong Daqiao Co., Limited.

Refractory bricks for Hot-Blast stoves
	粘土质 Clay brick		硅质 Silica
	RN-40	RN-42	RG-95
	标准值 Standard	标准值 Standard	标准值 Standard	标准值 Standard
耐火度，锥号CN Refractoriness oC 显气孔率 Apparent porosity % 真比重 True density g/cm3 常温耐压强度MPa Cold crushing strength	≤22(24) ≥30	≤22(24) ≥35	≤22 ≤2.32 ≥45	≤24 ≤2.32 ≥35
0.2MPa荷重软化温度(T0.6) Refractoriness under load 0.2MPa oC 重烧线变化 Permanent liner change 蠕变率 0.2MPa50h % \Creep(0.2MPa1550 oC*50h) 热膨胀 at 1000oC % Thermal coefficient of expansion	≥1350 1350oC*2h -0.5～0	≥1350 1400oC*2h -0.4～0	≥1650 ≤0.8 ≤1.25	≥1650 ≤0.8 ≤1.25
化学成分 Chemical analysis SiO2 % Al2O3 % Fe2O3 % 残余石英 % Remnant quautz	≥40	≥40	≥95 ≤1.0 ≤1.3 ≤1	≥95 ≤1.0 ≤1.3 ≤1
热震稳定性1100oC水冷次数 Thermal shock resistance times cold by water	提供数据 Data must be provide

	Tel: +86 532 85719155 Fax: +86 532 85719186 Address: Room 105, Block 3,No.20 West of Yinchuan road, Qingdao, China Manufactory : Shandong Daqiao Refractory Plant / ShanDong Luqiao New Material CORP. Phone: +86 533 4290064 Address: West of Renmin Road, Boshan, Zibo, Shandong / Luqiao Road, New Material Industry Area, Boshan Economic Development Zone, Zibo, Shandong
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