Eco Friendly Jm28 30 32 Mullite Insulation Firebrick Insulating Brick for Smelting

Product Description

Product Description

Mullite insulation bricks are high alumina refractory materials with mullite (3Al2O3·2SiO2) as the main crystal phase. Generally, the alumina content is between 65% and 75%. In addition to mullite, the mineral composition contains a small amount of glass phase and cristobalite in the lower alumina content, and a small amount of corundum in the higher alumina content.
Mullite insulation bricks can be directly used in the lining of high-temperature kilns. At present, they have been widely used in the lining of shuttle kilns, roller kilns, glass and petrochemical kilns.

Features
1. Low thermal conductivity, good thermal insulation effect;
2. Low thermal fusion, due to the low thermal conductivity, the mullite series light insulation bricks accumulate little heat energy, and the energy saving effect is obvious in intermittent operation;
3. The low impurity content has a very low content of oxides such as alkali metal in the iron box, so the refractoriness is high; the high aluminum content makes it maintain good performance under a reducing atmosphere;
4. High compressive strength in hot state;
5. Accurate appearance and size, speed up the masonry speed, reduce the amount of refractory mud, ensure the strength and stability of the masonry, and thereby extend the life of the lining;
6. Can be processed into special shapes to reduce the number of bricks and the joints.

Brand Properties		JM-23LD	JM-23	JM-26	JM-28	JM-30	JM-32
Classification temperature (ºC)		1300	1300	1400	1500	1550	1600
Bulk Density (g/cm^3)		0.55	0.6	0.8	0.9	1.0	1.1
Cold Crushing Strength (MPa)		1.0	1.2	1.8	2.5	3.3	3.5
Modulus of rupture (MPa)		1.0	1.0	1.7	2.3	3.1	3.2
(CTºCX24h) Permanent Linear Change (%)		-0.4	0.6	0.6	0.8	0.9	1.01
@ 1,100ºC  Thermal Linear Expansion (%)		0.50	0.50	0.52	0.52	0.53	0.7
Thermal conductivity (W/m.k)	350ºC	0.14	0.18	0.27	0.32	0.38	0.49
	400ºC	0.15	0.20	0.29	0.34	0.40	0.5
	600ºC	0.17	0.24	0.32	0.36	0.42	0.51
(%) Chemical Analysis	Al2O3	38	40	56	67	73	77
	Fe2O3	0.8 (CaO12%)	1.0	0.8	0.7	0.7	0.5

Q1 : How can you control your quality?

A1 : For each production processing, we have complete QC system for the chemical composition and Physical properties. After production, all the goods will be tested, and the quality certificate will be shipped along with goods. 

Q2 : What is your lead time? 

A2 : It usually needs about 15- 20 days after receiving the PO. 

Q3 : Do you provide free samples?

A3 : Yes, free samples are available, generlly speaking, the buyer shall bear all the delivery cost. 

Q4 : What is your payments terms?

A4 : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms. 

Q5 : Can we visit your company?

A5 : Yes, for sure, you are welcome to visit JUCOS company. 

Q6 : What standards do you have?

A6 : Our products meet the standards, such as ASTM, ASME, AMS, DIN, JIS etc. 

      The third party testing is all available for us.