Fireclay brick

This website page belongs to the fireclay brick's special column, which is one of series products in Tangshan Hengheng Trade Co.,Ltd, more details about the products will be available if you click http://www.hhrefractory.com

Silica brick's special column: http://www.silica-brick.com

High alumina brick special column: http://www.high-aluminabrick.com

Insulation brick's special column: http://www.insulation-brick.com

Our Main Advantages

As for fireclay brick series products, we excel our other fireclay brick suppliers in many aspects, such as:

• We enjoy the biggest production lines of fireclay brick and largest production capacity.

  ---15000 mt fireclay brick can be supplied per month. We can help you save your time limit for a project. Besides, we provide a small number of fireclay brick used for kinds of furnace maintenance as well.

• Advanced technology makes it possible for us to have very high qualified rate of fireclay bricks .

  ---Our qualified rate of fireclay brick has so far reached over 96%, therefore, our fireclay brick enjoy excellent quality and reasonable price from the point of view.

• Abundant financial resources are one of our crucial advantages.

  --- Rich fund has been obtained by us through good operation over years, which are allowed us to have the ability of operating L/C clauses in the context of of the economic crisis. Thus, we are able to pay in advance in the case of receipt of a small amount of prepayment so as to smoothen production and rush on the delivery date as well as reduce our customers' financial pressures.

1.fireclay brick for coke oven or general using

Item		Index
		N-1	N-2a	N-2b	N-3a	N-3b	N-4	N-5	N-6
Refractoriness,CN		176	174	174	172	172	170	166	158
2kg/cm2 refractoriness under load ℃                                           ≥		1400	1350		1320		1300
Linear Change After reheating%	1400℃, 2h	＋0.1 －0.4	＋0.01 －0.5	＋0.2 －0.5
	1350℃, 2h				＋0.2 －0.5	＋0.2 －0.5	＋0.2 －0.5	＋0.2 －0.5
Apparent porosity,%                   ≤		22	24	26	24	26	24	26	28
Compress strength,kg/cm2     ≥		300	250	200	200	150	200	150	150
Thermal shock Resistance		N-2b, N-3b fireclay brick must be tested and list the actual measuring data in the quality Certification.

2.fireclay brick for blast furnaces

MARK	ZGN-42	GN-42
Al2O3 , %                                                                 ≥	42	42
Fe2O3 , %                                                               ≤	1.6	1.7
Refractoriness CN	176	176
0.2Mpa refractoriness under load, ℃                ≥	1450	1450
Linear change after reheating % 1450℃, 3h	0 －0.2	0 －0.3
Apparent porosity, %                                             ≤	15	16
Compress strength, kg/cm2                               ≥	58.8	49.0
Air permeability	fireclay brick must be tested and list the actual measuring data in the quality Certification

3.Phosphoric acid immersed fireclay brick for blast furnace

MARK	GLN-42
Al2O3 , %	41-45
P2O5, %                                                                                                                ≥	7
Fe2O3 , %                                                                                                              ≤	1.8
0.2Mpa refractoriness under load, ℃                                                              ≥	1450
Linear change after reheating% 1450℃, 3h	-0.2－0
Apparent porosity, %                                                                                           ≤	14
Compress strength, Mpa                                                                                   ≥	60
Alkali resistance, %                                                                                             ≤	15

4.fireclay brick for hot-blast stoves

Item		Index
		RN-42	RN-40	RN-36
Al2O3 ,%                                                                        ≥		42	40	36
Refractoriness CN		176	174	170
0.2Mpa refractoriness under load ,℃                       ≥		1400	1350	1300
Linear change after reheating %	1450℃,2h	0 -0.4	--	--
	1350℃,2h	--	0 -0.3	0 -0.5
Apparent porosity,%                                                     ≤		24	24	26
Compress strength, MPa                                           ≥		29.4	24.5	19.6
Thermal shock resistance		It must be tested and list the actual Measuring data in the quality certification.

5.low creep fireclay brick for hot-blast stove

Brand name item	low creep fire clay brick for hot-blast stove
	H-HN	H-LN
Al2O3 , %                                                                       ≥	42	40
Fe2O3 , %                                                                     ≤	1.5	2.0
MgO , %
SiC,%
Apparent porosity,%                                                    ≤	18	18
Bulk Density, g/cm3                                                    ≥	2.2	2.1
Cold crushing strength, ≥Mpa	40	30
Refractoriness, ℃                                                        ≥	1750	1730
0.2Mpa refractoriness under load T0.6≥℃	1400	1350
Linear change after heating 2h %,                            ≤	1450℃) 0~0.4	1450℃) 0~0.3
0.2Mpa(20-50h) Creep rate, %                                  ≤	(1200℃ 1.0	(1200℃ 1.0
Thermal shock resistances(1100℃ water, ≥times)

6.fireclay brick for glass furnaces

Note for fireclay brick for glass furnaces : this standard applies to fireclay brick that unit weight is not less than 50kgs used in building glass furnaces.

Item	Index
	BN-40a	BN-40b
Al2O3 ,%                                              ≥	40
Fe2O3 ,%                                             ≤	1.5	1.8
0.2Mpa refractoriness under load , ℃                                                           ≥	1450	1400
Linear change after reheating %1400℃,2h	0 -0.4
Apparent porosity,%                          ≤	18	18
Compress strength, Mpa                 ≥	490	34.3

7.Low porosity fireclay brick for glass furnaces

Item	Property Index
	DN-12	DN-15
Al2O3, %	≥45	≥42
Fe2O3, %	≤1.2	≤1.5
Apparent porosity, %	≤12	≤15
Volume, density, g/cm3	≥2.37	≥2.30
Compress strength, Mpa	≥68	≥58.8
Refractoriness under load , ℃ T0.6, ℃ T0.5, ℃	≥1500 ≥1470≥1450	≥1470
Thermal shock resistance(1100℃-Cold),%	Offering the tested data.
Linear change after reheating % 1400℃,2h	-0.1 +0.05	-0.2 0.0

8.fireclay brick for casting

Note for fireclay brick for casting: This standard applies to fireclay brick used in molten steel casting,including funnel fireclay brick,cast pipe fireclay brick,center fireclay brick,three-way runner fireclay brick,two-way runner fireclay brick,runner fireclay brick,end runner fireclay brick,flow steel bay fireclay brick and ingot mould bottom plate fireclay brick.

Item		Index
		JZN-40	JZN-36	JZN-28
Al2O3 ,%                                                                      ≥		40	36	28
Refractoriness CN		172	170	166
Linear change after reheating % 1350℃,2h		+0.1 -0.3
Apparent porosity, %		17-25

Note of fireclay brick for casting: Buyer agreement, the lower limit of fireclay brick Porosity is no lower than 13%.

9.fireclay brick for steel ladle linings

Item		Index fireclay brick for steel ladle linings
		CN-42	CN-40	CN-36
Al2O3 ,%                                                                      ≥		42	40	36
Refractoriness CN		176	174	170
0.2Mpa refractoriness under load℃                      ≥		1430	1400	1370
Linear change after reheating % 1400℃,2h		0 -0.3	0 -0.3	0 -0.3
Apparent porosity,                                                      ≤		18	19	19
Compress strength, Mpa                                         ≥		39.2	34.3	29.4

10.Fireclay brick for ladle flow control systems

Note for fireclay brick for ladle flow control systems:This standard applies to plugs fireclay brick, casting nozzle fireclay brick, sleeve fireclay brick and well blocks fireclay brick for ladle flow control systems.

Item	Index of fireclay brick for ladle flow control systems
	SN-40	KN-40	XN-40	ZN-40
Al2O3 ,%                                                                                                 ≥	40
Refractoriness CN	172
0.2Mpa refractoriness under load ,℃                                               ≥	1370		--
Linear change after reheating, % 1350℃,2h	172		0 -0.3	--
Apparent porosity, %	15-23	≤22	15-25	≤23
Compress strength, Mpa                                                                     ≥	-			19.6
Thermal shock resistance	fireclay brick SN-40, XN-40 must be tested and list actual measuring data in the quality Certification.

11.Fireclay brick for for carbon roasting furnace

No.	Item	Unit	Value	Main Standard
1.	Compositional
	Al2O3,	%	42-53
	Fe2O3 , Max	%	1.6
	CaO+MgO,Max	%	0.7
	Na2O+K2O,Max		0.8
2.	Bulk density,Min	gm/c	2.2	ISO5017-1988
3.	Apparent porosity	%	12-18	ISO5017-1988
4.	Compressive strength,Min	Mpa	40	ISO10059-1-1992
5.	Creep rate,(0.2Mpa,1280oC,25h)	%	0.4	ISO3187-1989
6.	1200oC flexural strength,Min	Mpa	10	ISO5013-1985
7.	1350oC flexural strength，Min	Mpa	4	ISO5013-1985
8.	Thermal expansion rate,1000oC Max	%	0.7
9.	0.2Mpa refractoriess under load,min	°C	1450	ISO3187-1989

12.Low creep fireclay brick for carbon roasting furnace

No.	Item	Unit	Value	Main Standard
1.	Compositional
	Al2O3,	%	42
	Fe2O3 , Max	%	2.0
	CaO+MgO,Max	%	0.7
	Na2O+K2O,Max		0.8
2.	Bulk density,Min	gm/c	2.2	ISO5017-1988
3.	Apparent porosity	%	12-18	ISO5017-1988
4.	Compressive strength,Min	Mpa	40	ISO10059-1-1992
5.	Thermal expansion rate,1000oC Max	%	0.7
6.	0.2Mpa refractoriess under load,min	°C	1450	ISO3187-1989

fireclay brick packing

Fireclay brick are packed on wooden pallet and then polyethylene film is placed over it, finally the package is tied up with plastic-steel strips.

fireclay brick order quantity

we can supply big quantity for whole glass furnace project, coke oven project and hot blast furnace. We can also provide a small quantity of fireclay brick used for the above furnace repair.

fireclay brick delivery time

15000 mt fireclay brick can be supplied per month.

13.fireclay mortar

MARK		NN-38		NN-42
Refractoriness ℃                      ≥		1690		1710
Al2O3, %                                     ≥		38		42
Bond Strength, Mpa	110℃ after drying     ≥	1.0		1.0
	1200℃,3h after burning  ≥		3.0		3.0
Line change rate %	1200℃,3h after burning	+1－-3		-
	1300℃,3h after burning	-		+1－-5
Setting time, min		1-3
Granularity, %	-1.0mm	100
	+0.5mm          ≤	2
	-0.074mm       ≥	50

fireclay mortar:

Our fireclay mortar is characterized by the features as following:

1) Stay powders instead of lumps for a long time

2) Higher usage rate and high strength

------construction depth≤3mm (for example, 4 bricks are accumulated, and are still placed on somewhere for 10 minutes. In that case, the whole brick piles won't be scattered after the top of them is picked up.)

3) We will comply with our customers' requirements.

We will modify our production formula in accordance with the fireclay brick so as to have the same

swell factor with fireclay brick. Therefore, let their perfect combinations be realized.

4) Reasonable price

fireclay mortar packing ：50KGS/P.P bag; 20P.P bags packed in one wooden pallet; the P.P bag must be water proof. The pallets should be covered by stretch film and bonded with plastic strips