Clay bricks

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Refractory material

Clay bricks

Low gas cavity clay brick

Items\Specification	SXSHQB-12	SXSHQB-13	SXSHQB-15
AL₂O₃,% ≥	45	45	45
Fe₂O₃, % ≤	1.3	1.5	1.6
refractoriness ℃ ≥	1750	1750	1750
refractoriness under load(0.2MPa) ℃ ≥	1560	1550	1540
apparent porosity % ≤	12	13	15
cold crushing strength Mpa ≥	70	65	60
bulk density g/cm³≤	2.35	2.35	2.30

Clay brick

Items\Specification	I	II	III	IV	V
AL₂O₃,% ≥	45	45	45	42	45
refractoriness ℃ ≥	1730	1750	1750	1730	1730
refractoriness under load(0.2MPa) ℃ ≥	1400	1420	1440	-	1440
apparent porosity % ≤	24	24	18	25	24
cold crushing strength Mpa ≥	30	30	40	-	30

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