high alumina clay brick

Model:	4
Brand:	YUN TAI
Origin:	Made In China
Category:	Construction & Decoration / Heat Insulation
Label:	clay brick , refractory brick , fireproof brick
Price:	US $300 / ton
Min. Order:	1 ton

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Product Description

Insulating Firebrick is made from high purity refractory clays and other raw materials, with light weight and mini-porosity well distributed. Each brick is machined to precise tolerances on all six faces.

Characteristic:
- Low thermal conductivity
- Low heat storage
- High spalling resistance
- High hot compressive strength
- Low iron oxide and alkali flux content
- Accurate dimensions

Application:
- Hot face refractory lining for furnaces, kilns, flues, refining vessels and heaters, regenerators, gas producers and similar high temperature industrial equipment.
- Back up insulation for furnaces, kilns and similar high temperature industrial equipment.

	TK-23	TK-26	TK-28	TK-30	TK-3000
Classification temperature ( °C)	1260	1425	1538	1550	1600
Bulk density (Kg/m³)	520	780	880	1000	1050
Reheat shrinkage ( % ) JIS R2613 (°C*8hs)	0.20 (1300)	0.40 (1400)	0.40 (1500)	0.38 (1550)	0.38 (1600)
Cold crushing strength (ASTM C93, MPa)	1.1	1.6	2.1	2.0	2.2
Modulus of rupture (ASTM C93, MPa)	0.8	1.2	1.5	1.8	2.0
Thermal expansion at 1000 ° C (%) (JIS R2617, °C)	0.46	0.47	0.48	0.48	0.48
Thermal conductivity Kcal/mh °C (W/mK) ,ASTM C201,
Mean 400 °C	0.15	0.26	0.31	0.42	0.45
Mean 600 °C	0.17	0.29	0.34	0.44	0.47
Mean 800°C	0.19	0.32	0.36	0.45	0.49
Mean 1000°C	0.21	0.34	0.38	0.48	0.52
Chemical analysis - JIS R2216
Al2O₃	41	56	65	73	75
SiO₂	53	39	32	25	22
Fe3O₂	0.8	0.7	0.6	0.5	0.5
CaO	0.7	0.4	0.3	0.2	0.1
Standard Packing	23011465 / 75, 10pcs / pack for standard size