refractory brick 1.High slag resistance 2.Excellent corrosion resistance, 3.Good thermal shock resistance,

Refractory Brick

 

 Refractory Brick Magnesia Calcium Carbon  Introduction:

Refractory Brick Magnesia Calcium Carbon is made from dolomite, magnesite, flake graphite as major material.

 

 Characteristics:

1.High slag resistance

2.Excellent corrosion resistance,

3.Good thermal shock resistance,

4.Good thermal conductivity

5.Competitive price.

 

 Application:

Magnesia Calcium Carbon Brick is mainly used in the converter, electric furnace. 

 1,Fireclay brick Chemical & Physical Index

	RI	A.P.	B.D.	C.C.S.	RUL	PLC(%)
	≥(°C)	≤%	≥g/cm3	≥Mpa	≥0.2Mpa°C	1400°C×2h	1350°C×2h
N-1	176	22		300	1400	0.1~-0.4
N-2a	174	24		250	1350	0.1~-0.5
N-2b	174	26		200		0.2~-0.5
N-3a	172	24		200	1320		0.2~-0.5
N-3b	172	26		150			0.2~-0.5
N-4	170	24		200	1300		0.2~-0.5
N-5	166	26		150			0.2~-0.5
N-6	158	28		150

ITEM					STANDARD
									AL2O3(%)					38
FE2O3(%)					2.5
									REFRACTORINESS(SK)					34
REFRACTORINESS UNDER LOAD,0.2MPA,TA,()					1350
									POROSITY(%)					19-23
BULK DENSITY(G/CM3)					2.10-2.15
									COLD CRUSHING STRENGTH(MPA)					25
THERMAL EXPANSION AT 1000(%)					0.6

Composition	Content(%)
SiO 2	69.8
AL 2 O 3	21.5
K 2 O	2.7
Na 2 O	0.95
MgO	0.12
CaO	0.82
Fe 2 O 3	0.2
Burning loss	0.54
Acid resistance	99.8

refractory brick