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High performance castables

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Adventitious Refractory Material

Refractory castables mainly include common series,low-cement series, ultralow cement series and lightweight series,

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Refractory castables mainly include common series,low-cement series, ultralow cement series and lightweight series,Which are used respectively for the following aspects according to their various features :
a. For hot blast stove system,secondary refining devices,up-take pipe lining,pretreatment hot metal ,lance for oxygen and argon blowing;
b. For steel making and steel rolling systems,EAF roof,triangle area of EAF roof,ladle,reheating furnace,soaking pit,inner lining of heat treating furnace,pre-cast block for water-cooling slide rails,soot blowing port，burner and fire blocking port.
c. For cement kiln,lining of tube Cooler,roof and innerlining on the cell bottom of float glass tank , petroleum cracking reactor,high-ternperature and abrasion resistant lining,Synthetic ammonia device and lining for gas furnace.

Item/Index		Low-cement castable			Ultra-low cement castable		Cement-free castable		Dense andalusite castable
Item/Index		DL-70	DL-75	DL-90	CDL-75	CDL-95	WNJ-75	WNJ-93	HS
Al₂O₃,%		≥70	≥75	≥90	≥75	≥95	≥75	≥93	≥73
CaO,%		≤1.5	≤1.5	≤1.2	≤1.0	≤1.0	1	/	/
Refractoriness,℃		1790	1790	1790	1790	1790	1790	1790	/
BD,g/cm³	110℃×24h After sintering	≥2.65	≥2.7	≥3.15	≥2.7	≥3.25	≥2.73	≥3.3	/
BD,g/cm³	110℃×24h After sintering	1500℃ ×3h ≥2.6	1500℃ x3h ≥2.65	1500℃×3h ≥3.1	1500℃×3h ≥2.65	1500℃ ×3h ≥3.2	1350℃×3h ≥2.7	1350℃×3h ≥3.2	1500℃ ×3h ≥2.65
CS,MPa	110℃×24h After sintering	≥30	≥35	≥60	≥40	≥60		≥15	/
CS,MPa	110℃×24h After sintering	1500℃ ×3h ≥60	1500℃×3h ≥65	1500℃ ×3h ≥100	1500℃×3h ≥100	1500℃×3h ≥120	1350℃ ×3h ≥95	/	1500℃ x3h ≥80
MOR,MPa	110℃×24h After sintering	≥5	≥5.5	≥10	≥9	≥14	≥3.9	≥4.5	/
MOR,MPa	110℃×24h After sintering	1500℃ ×3h ≥15	1500℃×3h ≥16	1500℃ ×3h ≥15	1500℃ x×3h ≥13	1500℃×3h ≥17	1350℃×3h ≥13.5	1350℃ ×3h ≥37	/
PLC,%		1500℃ ×3h ±0.5	1500℃×3h ±0.5	1500℃×3h ±0.5	1500℃ ×3h ±0.5	1500℃ ×3h ±0.5	1350℃×3h ±0.5	1350℃×3h ±0.22	1500℃x×3h ±0.2
Service temperature,℃		1500	1550	1650	1550	1700	1550	1650

Key words:

Refractory Castables

Steel Fiber Reinforced castables

Abrasion Resistant Castables

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