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Refractory bricks for Ca

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Place of Origin: China - Shandong - Zibo
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NegotiableUnit:Piece
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Product Details

Details

项 目 Item\ 牌 号 Brand

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

耐火度 ℃
Refractoriness

≥1750

≥1750

 

 

≥1770

≥1750

显气孔率 %
Apparent Porosity

11-19

11-19

≤16

≤14

≤18

11-19

体积密度 g/cm3
Bulk Density

≥2.20

≥2.20

≥2.35

≥2.40

≥2.45

≥2.35

常温耐压强度 Mpa
Cold crushing strength

≥40

≥50

≥40

≥60

≥70

≥60

荷重软化温度 ℃
Refractoriness under Load

T0.5≥1450

T 0.5≥1490

T0.5≥1470(示差法)

T0.5≥1500

T0.5≥1600

T0.5≥1600

重烧线变化率 %
Permanent Linear Change
1450℃×2h
+0.1~-0.1
1450℃×2h
+0.1~-0.1
  1600℃×2h
±0.2
 
蠕变率 %
0.2Mpa,(0-25h)
1280℃
≤0.4
1280℃
≤0.25
1280℃×(14-24)h
≤0.007
1350℃×(20-50)h
≤0.2
1280℃
≤0.1
 
高温抗折强度 MPa
1350℃×0.5hr
≥4≥4≥61370℃×0.5hr
≥6
 ≥6
线膨胀率, 1000℃ %≤0.7≤0.7   ≤0.65
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