KaiFeng GaoDa New Type Refractory Material Factory
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(86)-189 3782 2293
Contact:A Lei
TEL:(86)-18937822293
Fax:(86)-371-2392 2186
Email:suwolf@faxmail.com
Add:West of XiaoWangTun ZhenBian Road KaiFeng City,HeNanProvince,China
Zip:475000
 
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Production

for heating furnace and soaking furnace

Product Description:

 

material high alumina castable mullite castable high alumina castable corundum castable light weight castable
Brand GD-31 GD-32 GD-33 GD-34 GD-35
Chemical Composition(%) Al2O3 ≥60 ≥70 ≥75 ≥85 ≥45
SiO2 - - - - -
CaO ≤1.5 ≤1.5 ≤1.5 ≤1.8 -
Bulk density(g/cm3) 110° C×24h ≥2.4 ≥2.60 ≥2.70 ≥3.00 -
1400° C×3h ≥2.3 ≥2.50 ≥2.60 ≥2.90 ≤1.4
Compressive strength(Mpa) 110° C×24h ≥50 ≥60 ≥80 ≥80 ≥10
1400° C×3h ≥70 ≥80 ≥120 ≥100 ≥20
Bending strength(Mpa) 110° C×24h ≥7 ≥8 ≥10 ≥10 ≥1
1400° C×3h ≥9 ≥10 ≥12 ≥12 ≥3
Linear changing after burnt(1500° C×3h)% 0+0.8 0+0.6 0+0.8 0+1.0 -
water content for construction 56 55.5 56 55.5 1015
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