Refractory Brick Andalusite Fire Brick High Alumina Brick

The bricks to be packed by fumigation wooden pallets.

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Model: BDL-85
Brand: Dezhen
Code: 690220

Product Description

The product features: high alumina bricks for steel making is made from special grade of bauxite as main raw material, added with little amount of white fused alumina and a alumina powder, shaped by high pressure and sintered at high temperature. The main mineral constituent includes mullite and corundum, with excellent high temperature physical performance and chemical erosion resistance.

items	DL-80	DL-75	BDL-80	BDL-75	BDL-83	BDL-85
Al₂O₃% ≥	80	75	80	75	83	85
Fe₂O₃% ≤	1.5	1.5	1.5	1.5	1.5	1.5
Apparent porosity % ≤	19(21)	19(21)	18(20)	18(20)	17(19)	17(19)
Bulk density g/cm³ ≥	2.7	2.6	2.8	2.7	2.85	2.9
Cold crushing strength Mpa ≥	70	60	60	55	70	80
Refractoriness under load ºC	1540	1520	1550	1530	1550	1560
P.L.C %	±0.2	±0.4	±0.2	±0.4	±0.2	±0.2

andalusite brick high alumina brick fire brick