Refractory materials for carbon roastingfurnace industry-Refractory materials for carbon roasting furnace industry-Silica Brick,Fireclay Brick,Fireclay checker brick-SHANDONG LUQIAO NEW MATERIAL CORP.

Refractory materials for carbon roastingfurnace industry

$Refractory materials for carbon roastingfurnace industry$

PRODUCT SPECIFICATIONS

Items	CBF40-A	CBF40-B	CBF50-A	CBF50-B	CBF60-A	CBF60-B
Al₂O₃ / %	42-53	45-53	≥45	≥50	≥60	≥58
Fe₂O₃ / %	≤1.6	≤1.6	≤1.0	≤1.2	≤1.1	≤1.4
TiO₂ / %			≤1.5	≤2.0
CaO+MgO / %	≤0.7	≤0.7				≤0.7
K₂O+Na₂O / %	≤0.8	≤0.8	≤0.6			≤0.8
Refractoriness / ℃	≥1750	≥1750			≥1770	≥1750
Apparent porosity / %	11-19	11-19	≤16	≤14	≤18	11-19
Bulk density g/cm³	≥2.20	≥2.20	≥2.35	≥2.40	≥2.45	≥2.35
Cold crushing strength / MPa	≥40	≥50	≥40	≥60	≥70	≥60
Refractoriness under load	T_0.5≥1450	T_0.5≥1490	T_0.5≥1470 (示差法)	T_0.5≥1500	T_0.5≥1600	T_0.5≥1600
Permanent liner change %	1450℃×2h +0.1 ~ -0.1	1450℃×2h +0.1 ~ -0.1			1600℃×2h ±0.2
0.2Mpa,(0-25h) % Creep	1280℃ ≤0.4	1280℃ ≤0.25	1280℃×(14-24)h ≤0.007	1350℃×(20-50)h ≤0.007	1280℃ ≤0.1
MPa 1350℃×0.5hr Modulus of Rupture	≥4	≥4	≥6	1370℃×0.5hr ≤0.007		≥6
1000℃ % Linear expansion rate	≤0.7	≤0.7				≤0.65