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Unshaped Refractories:------Fireclay High Alumina Castable Refractories

(Include:Mullite and Corundum Castable)

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Fireclay,High Alumina Castable Refractories(Include:Mullite and Corundum):

Quality		Fireclay	Fireclay	Fireclay	High Alumina	High Alumina	High Alumina	High Alumina	High Alumina	High Alumina
Code		GD-A120	GD-A130A	GD-A135	GD-A130B	GD-A140	GD-A145	GD-A150A	GD-A150B	GD-A150C
Max service temperature ^° C		1200	1300	1350	1300	1400	1450	1500	1500	1500
Properties		Normal	Normal	Normal	Normal	Normal	Normal	Normal	Normal	Normal
Modulus of rupture(MPa)	110^° C×24h	≥4	≥4	≥5	≥6	≥4	≥5	≥4	≥4	≥4
	1000^° C×3h	≥5	≥6	≥8	≥8	≥6	≥7	≥8	≥8	≥9
	( )^° C×3h	≥7(1200)	≥8(1200)	≥10(1300)	≥10(1300)	≥8(1400)	≥9(1450)	≥10(1500)	≥9(1500)	≥12(1500)
Cold crushing strength(MPa)	110^° C×24h	≥18	≥20	≥30	≥50	≥25	≥25	≥30	≥30	≥40
	1000^° C×3h	≥30	≥35	≥45	≥60	≥40	≥40	≥45	≥40	≥60
	( )^° C×24h	≥40(1200)	≥50(1200)	≥65(1300)	≥80(1300)	≥50(1400)	≥60(1450)	≥70(1500)	≥60(1500)	≥80(1500)
Permanent linear change(%)	1000^° C×3h	±1.5	±1.0	±1.0	±1.0	±1.0	±1.0	0~+1.5	0~+1.0	0~+1.0
Bulk Density(g/cm³)110^° C×24h		≥2.0	≥2.1	≥2.25	≥2.2	≥2.10	≥2.40	≥2.35	≥2.30	≥2.35
Moldulus of rupture at elevated temperature(MPa)		-	-	-	-	-	-	≥0.5(1400^° C×1h)	-	≥1.0(1400^° C×1h)
Chemical analysis(%)	Al₂O₃	≥40	≥45	≥47	≥50	≥48	≥60	≥55	≥50	≥55
Chemical analysis(%)	CaO	≤6	≤5	≤4	≤4	≤2.5	≤2.5	≤2.0	≤2.0	≤1.5
Grain size(%)	Top size mm	15	5	5	5	5	5	5	5	5
Grain size(%)	less than 75um	≥32	≥31	≥30	≥29	≥30	≥29	≥30	≥30	≥29
Additive water(casting)(%)		14-15	10-12	7.5-8.0	8.0-8.5	7.5-8.0	8.0-9.0	7.0-7.5	7.3-7.8	7.0-7.5
Application area for example		Low temp part of general furnaces,Example:fume trough	Low temp part of general furnaces	Low temp part for rotary kiln	Charging,holding zone for dry quenching decive	Cooling zone for rotary kiln	Cover for steel ladle,iron ladle	Trouth cover for blast furnace	Cover for trndish	Low temp zone skids for heating furnace(step)

Fireclay,High Alumina Castable Refractories(Include:Mullite and Corundum)

Quality

High Alumina

High Alumina-Mullite

High Alumina

High Alumina-Mullite

Mullite

Mullite-Corundum

Corundum

Code

GD-A160A

GD-A160B

GD-M160

GD-A165

GD-A170A

GD-A170B

GD-M165A

GD-M165B

GD-M165C

GD-M170

GD-A185

Max service temperature^° C

1600

1650

1700

1650

1700

1850

Properties

Normal

Modulus of rupture(MPa)

110^° C×24h

≥5

≥6

≥4

≥7

≥4

≥6

≥4

≥6

≥4

≥5

1000^° C×3h

≥8

≥10

≥12

≥10

≥12

≥4

1500^° C×3h

≥12

≥14

≥15

≥16

≥14

≥15

≥12

≥16

≥14

Cold crushing strength(MPa)

110^° C×24h

≥30

≥40

≥25

≥60

≥30

≥25

≥40

≥35

≥40

≥30

≥40

1000^° C×3h

≥60

≥70

≥55

≥80

≥70

≥80

≥60

≥90

≥30

1500^° C×3h

≥80

≥90

≥70

≥100

≥120

≥90

≥100

≥85

≥100

≥70

Permanent linear change(%)

1000^° C×3h

1500^° C×3h

±0.5

0~+1.0

0~+1.5

±0.5

0~+0.5

±0.5

0~+0.5

0~+1.0

Bulk Density(g/cm³)110^° C×24h

≥2.70

≥2.35

≥2.40

≥2.60

≥2.75

≥2.80

≥2.70

≥2.60

≥2.58

≥2.70

≥3.0

Modulus of rupture at elevated temp(MPa)1400^° C×1h

≥1.0

≥1.5

≥2.0

≥3.0

Chemical analysis(%)

Al₂O₃

≥75

≥58

≥70

≥80

≥70

≥65

≥75

≥95

CaO

≤2.0

≤1.8

≤1.5

≤1.0

≤1.5

≤0.8

≤1.5

≤0.8

≤2.0

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