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　　　　The adamantine spar manufactures used for chemical industry
　　The high-pure and low-silicon adamantine spar bricks are mainly used for the gasified and gas-making furnace in the petrol-chemical industry. The pure adamantine spar bricks are mainly used for the big and medium sized synthetic ammonia gasification furnace in the petrol-chemical industry and for the furnace bottom to heat iron and steel. The chromium-zirconium bricks and chromium pure adamantine spar bricks are mainly used for internally packed special refractory materials of water gas liquid gasification furnace in the petrol-chemical industry.

The adamantine spar manufactures used for chemical industry
Item
 Marks
High-pure low-silicon adamantine spar bricks
PF-CG		 Pure damantine spar bricks
PF-GG		 Chroium zirconium bricks
PF-RG		 Chromium adamantine spar bricks
PF-2G		 Low-silicon Hi-intensity Adamantine spar astable
PF-GJ		 Low-silicon adamantine spar castable
PF-CL		 Alumina Hollow Ball castable
PF-KL
Al2O3(%)
content 		≥99 ≥96 ≥5~8
(ZrO2)		 ≥88 ≥96 ≥95 ≥93
SiO2(%)
content		 ≤0.2 -- -- -- ≤0.5 ≤0.5 ≤0.5
Fe2O3(%)
content		 ≤0.15 ≤0.3 -- ≤0.3 ≤0.5 ≤0.7 ≤0.7
R2O(%)
content		 ≤0.15 -- -- -- -- -- --
Cr2O3(%)
content		 -- -- ≥84 10~12 -- -- --
CaO(%)
content		 -- -- -- -- < 2 < 3 < 5
(%)
Porosity
≤17 ≤18 13~15 17~19 -- -- --
(g/cm)
Bulk Density		 ≥3.2 ≥3.0 ≥4.15 ≥3.15 3.0~3.2 3.0~3.2 1.5~1.6
(MPa)
C.C.S
100-120 ≥70 ≥100 80-100 ≥75
(110°C) 		≥60
(110°C)		 ≥15
(110°C)
≥90
(1000°C)		 ≥80
(1000°C)		 ≥10
(1000°C)
≥95
( 1300°C)		 ≥85
(1300°C)		 ≥10
(1300°C)
(MPa)
1250°C Modulus of Rupture
 ≥9.5 -- -- -- ≥9
(110°C) 		≥8
(110°C)		 ≥3
(110°C)
≥11
(1000°C)		 ≥10
(1000°C)		 ≥2
(1000°C)
≥11
( 1300°C)		 ≥10
(1300°C)		 ≥2
(1300°C)
(°C)
Refractoriness 		≥1900 ≥1850 -- -- ≥1850 ≥1830 --

(°C)
0.2MPa Loading Soften Temp.

 ≥1700 ≥1680 ≥1700 ≥1700 -- -- --
1600°C×3h
Reheat shrink
 ±0.2 -- -- -- -- -- --
(1300°C×
10/°C)
Thermal expansion
 8.6 -- 6.8 8.3 -- -- --
(w/m.k)
Conductivity
≤2.0 -- -- ≤4.0 1.8(815°C) -- ≤0.7
(1100°C水冷)
Thermal spalling
 ≥6 ≥6 -- -- -- -- --
Main crystal
 a~Al2O3 -- -- -- -- -- --
((%)
Reheat linear change
 -- ±0.3 ±0.2 0~2 -- -- ≤-0.3
(1400°C×3h)

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