Refractory Brick / block

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Technical instructions

Henan Hongda Industrial Furnace Co., ltd.

Technical Parameters

refractory castable

Castable1 1:

Item Index        
International Code Name SK35 SK36 SK37 SK38 SK40
Chinese Code Name LZ-48 LZ-55 LZ-65 LZ-75 LZ-80
Al2O3,% ≥48 ≥55 ≥65 ≥75 ≥80
Fe2O3,% ≤2 ≤2 ≤2 ≤2 ≤2
Refractoriness℃,min 1750 1770 1790 1790 1790
Apparent Porosity,% ≤22 ≤22 ≤23 ≤23 ≤21
Bulk Density,g/cm3 2.25-2.35 2.25-2.35 2.25-2.35 2.25-2.35 2.25-2.35
Cold Crushing Strength Mpa ≥39 ≥44 ≥49 ≥54 ≥65
0.2Mpa Refractoriness Under Load T0.2 ℃,min ≥1420 ≥1470 ≥1500 ≥1520 ≥15

Corundum refractory brick

牌 号   HD-CH1 HD-CH2 HD-CH3
ITEM        
化学成分 CHEM Al2o3 90 - -
(%)  ≥ Al2o3 - - 95
  Al2O3+Cr2 O3 90 90
  Al2O3+Zr O2 93
  Al2O3+Cr2O3+Zr O2 - 95 -
体积密度 110℃ × 24h 3.2 3.3 3
BD        
(g/cm3)  ≥        
抗折强度 110℃ × 24 h 10 10 10
MOR        
(MPa)  ≥ 1500℃ × 3 h 12 12 12
耐压强度 110℃ × 24 h 40 40 30
CCS        
(MPa)  ≥ 1500℃ × 3 h 100 100 80
线变化率 110℃ × 24 h ±0.1 ±0.1 ±0.1
PLC        
(%)  ≤ 1500℃ × 3 h +0.3~-0.5 +0.3~-0.5 +0.3~-0.5

Mg – C brick / al – mg – c brick / mg-al brick

item 镁碳砖MGO C BRICK  铝镁碳砖
AL2O3 – MGO – C  BRICK
MT-10A MT-14A MT-16A AMC -6A AMC -8A
MgO(%)≥ 80 76 72 84 72
C(%)≥ 10 14 16 6 8
显气孔AP(%)≤ 4 3.5 3 10 10
体积密度BD (g/cm3) 2.9 2.85 2.8 2.9 2.85
耐压强度CCS(Mpa)≥ 40 35 35 40 40
Item MA-80 MA-85 MA-88
MgO % 85 88 90
Al2O3 % 7 6.5 6.5
Bulk Density g/cm3 2.9 2.95 3
Cold Crushing Strength   Mpa 45 45 50
0.2Mpa Refractoriness   Under Load °C 1610 1650 1700

Mg – chrome brick

Item MGe8 MGe12 MGe16
MgO % 72 70 65
Cr2O3 % 10 13 17
Fe2O3 % 4.8 5.5 6.5
Apparent Porosity % 18 18 18
Bulk Density g/cm3 3 3.02 3.05
Cold Crushing Strength Mpa 55 55 50
Refractoriness Under Load °C 1600 1600 1600

Item DMGe12 DMGe16
MgO % 74 69
Cr2O3 % 14 18
Fe2O3 % 5 5.7
Apparent Porosity % 18 18
Bulk Density g/cm3 3.06 3.08
Cold Crushing Strength Mpa 55 55
Refractoriness Under Load °C 1700 1700

AL – SIC – C brick

Item – al2o3 –SIC – C ASC-F1 ASC-F2 ASC-P
Al2O3,% ≥ 65 60 55
SiC,% ≥ 10 8 8
C,% ≥ 10 12 5
Apparent porosity,% ≤ 8 8 9
Bulk density,g/cm3 ≥ 2.85 2.83 2.8
Compressive strength in commen temperature,Mpa ≥ 50 50 45

Precast brick :

Precast brick spec  1 :

  HIGH ALUMINA BASE
BRAND HD-LJ50 HD-LJ55 HD-LJ60 HD-LJ65 HD-LJ70 HD-GJ75
Al2O3  (%)  ≥ 50 55 60 65 70 75
体 积 密 度 BD 110℃ × 24 h 2.2 2.2 2.3 2.3 2.5 2.6
(g/cm3) ≥
抗折强度MOR 110℃ × 24 h 6 7 7 8 8 9
(MPa) ≥ 1350℃ × 3 h 8 8 10 10 11* 11*
抗压强度CCS 110℃ × 24 h 25 30 35 40 45 50
(MPa)  ≥ 1350℃ × 3 h 30 40 45 50 60* 65*
线变化率PLC 1350℃ × 3 h ±0.5 ±0.5 ±0.5 ±0.5 ±0.5* ±0.5*
(%) ≤
最高使用温度 REF  (℃) 1350 1400 1450 1500 1550 1600

Precast brick spec  2 :

刚  玉  质

CORUNDUM BASE

莫  来  石  质

MULLITE BASE

牌  号

BRAND

HD-GJ80

HD-GJ90

HD-GJ95

HD-MJ55

HD-MJ60

HD-MJ65

HD-MJ70

Al2O3 (%) ≥

80

90

95

55

60

65

70

体 积 密 度 BD

(g/cm3)  ≥

110℃ × 24 h

2.7

2.8

3.0

2.2

2.3

2.4

2.5

抗折强度 MOR

(MPa) ≥

110℃ × 24 h

9

10

11

7

7

8

9

1350℃ × 3 h

12*

12*

12*

9

10

10

12*

抗压强度 CCS

(MPa) ≥

110℃ × 24 h

60

60

60

30

35

40

45

1350℃ × 3 h

70*

75*

80*

40

50

50

60*

线变化率 PLC

(%) ≤

1350℃ × 3 h

±0.5*

±0.5*

±0.5*

±0.5

±0.5

±0.5

±0.5*

最高使用温度 REF  (℃)

1650

1700

1800

1450

1500

1550

1600

Precast brick spec  3 :

项目

item

单位

CORUNDUM+MULLITE + SIC BASE

HD-NMJ60

HD-NMJ65

HD-FK-1

HD-YZ-1

Al2O3

60

65

70

70

抗折强度

MOR

110℃×24h

MPa

6

7

8

8

1150℃×3h

8

9

10

10

耐压强度

CCS

110℃×24h

MPa

50

60

70

70

1150℃×3h

70

80

90

90

体积密度

BD

110℃×24h

g/cm3

2.4

2.5

2.6

2.6

线变化率

PLC

110℃×24h

±0.1

±0.1

±0.1

±0.1

Precast brick spec  4 :

牌 号

ITEM

HD-CH1

HD-CH2

HD-CH3

化学成分 CHEM

(%)  ≥

Al2O3+Cr2 O3

90

90

Al2O3+Zr O2

93

Al2O3+Cr2O3+Zr O2

-

95

-

体积密度

BD

(g/cm3)  ≥

110℃ × 24h

3.2

3.3

3.0

抗折强度

MOR

(MPa)  ≥

110℃ × 24 h

10

10

10

1500℃ × 3 h

12

12

12

耐压强度

CCS

(MPa)  ≥

110℃ × 24 h

40

40

30

1500℃ × 3 h

100

100

80

线变化率

PLC

(%)  ≤

110℃ × 24 h

±0.1

±0.1

±0.1

1500℃ × 3 h

+0.3~-0.5

+0.3~-0.5

+0.3~-0.5

Precast brick spec  5 :

牌  号 HD-DYZ1 HD-DYZ2 HD-DYZ3 HD-DYZ4
化学成分 Al2O3+MgO(%) ≥ 80 90 ---- ----
chem Al2O3+Mgo+Cr2O3(%) ≥ ---- ---- 85 90
体积密度 110℃×24h 2.8 2.8 2.9 3
BD
(g/cm3) ≥
抗折强度MOR (MPa)? ≥ 110℃×24h 7 8 7 8
1500℃ × 3 h 10 10 10 12
耐压强度CCS 110℃×24h 40 45 40 54
(MPa)  ≥ 1500℃ × 3 h 50 60 60 70
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