FLG Series Insulating Refractory Bricks Insulation Refractory

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FLG Series Insulating Refractory Bricks & Blocks- Over 20MPa

Crafted from a meticulous blend of alumina-silicate raw materials, the FLG series insulating refractory bricks epitomize the perfect fusion of innovation and tradition. Through either extrusion or pressing, these bricks undergo rigorous shaping, followed by high-temperature sintering, ensuring durability and performance.

Grede: FLG140-1.0, FLG140-0.9, FLG135-1.2, FLG135-1.0, FLG130-1.30, FLG130-0.8

Light Weight Fire Brick

High Temp Refractory Bricks

Higher iron content, higher strength

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Introduction

Features

Photo Gallery

Product Knowledge

Technology Parameters

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Introduction of FLG Series Insulating Refractory Bricks

Firebird’s FJM Series Insulating Firebricks (IFBs) are high-quality lightweight insulation refractory bricks
crafted from a blend of pure refractory clays, select alumina, and specially graded organic fillers. These
fillers burn out during production, resulting in a controlled and consistent pore structure.

Manufactured through casting, extrusion, or foaming methods, the bricks are sintered in natural gas-powered tunnel kilns. After undergoing meticulous grinding for accurate dimensions, the IFBs are securely
packed on ISPM15 or non-fumigation plywood pallets.

From standard straight, arch, and block shapes to bespoke designs, our manufacturing capabilities
cater to your unique project needs

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Features of FLG Series Insulating Refractory Bricks

Exceptional Permanent Linear Change (PLC):

Produced using high-purity raw materials and subject to prolonged high-temperature sintering, FLG series insulating refractory bricks exhibit minimal PLC for safe, long-lasting application
Low Thermal Conductivity:

Superior thermal insulation enables thinner furnace walls, reducing operational costs and boosting efficiency.
Low Density & Heat Storage:

Lightweight and thermally insulating, FLG series insulating refractory bricks absorb minimal heat, offering fuel savings and rapid heat-up in cyclical heating equipment.
High Purity:

Minimal impurities like iron and alkali flux ensure consistent refractory performance in specified atmospheres.
High Strength:

Strong compressive strength allows for self-supporting structures at elevated temperatures, enhancing construction stability
Precise Dimensions:

Machine-calibrated bricks enable quick and easy laying, creating stronger and tighter refractory linings that minimize heat loss.

Photo Gallery of FLG Series Insulating Refractory Bricks

FLG Series Insulating Firebrick Blocks pack

Classification

FLG135-1.20 Grade:A medium-strength insulating block with a benchmark 10MPa Cold Crushing Strength (CCS). These blocks, shaped using specialized molds, are finely ground to achieve dimensional accuracy within a tolerance of +/-1mm.

FLG130-1.30 Grade:Crafted from select, high-quality raw materials, these blocks stand out with their impressive 20MPa CCS. Pressed to shape, these blocks demonstrate exceptional strength. However, as they’re not subjected to post-sinter grinding, their dimensional tolerance is slightly higher.

Typical Application

FLG Series Insulating Refractory Bricks are versatile and ideal for hot face refractory lining or back-up insulation in various industries, including:

• Chemical & Petrochemical: Kilns, flues, refining vessels, heaters, reactor chambers.
• Glass: Melters, regenerators, tin baths, distributors, tempering furnaces.
• Ceramics: Roller kilns, tunnel kilns, shuttle kilns, electricity furnace.
• Aluminum: Anode baking furnaces, primary electrolytic cells.
• Lithium-ion Battery: Cathode and anode furnaces.
• Iron & Steel: Coke ovens, blast furnaces, hot blast stoves, reheating furnaces, bright metal annealingfurnaces.
• Industrial Furnaces: Carburizing furnaces, heat treating furnaces, electronic product furnaces,refractory sintering furnaces.

Technology Parameters

Items		FLG140-1.0	FLG140-0.9	FLG135-1.2	FLG135-1.0	FLG130-1.30	FLG130-0.8
Al2O3	%	48	48	48	48	45	45
SiO2	%	44	43	43	42	46	51
Fe2O3	%	2.5	1.8	2	1.8	2.5	1.4
Bulk Density	g/cm3	1	0.9	1.2	1	1.3	0.8
Cold Crushing Strength	MPa	5	4	10	4.7	20	2.2
Modulus of Rupture	MPa	3	2.5	4	3	9	1.3
Reheating Linear Change	%	-1.5	-1.5	-1.5	-1.5	-1.5	-1.5
Reheating Linear Change	%	1400°C x 8h	1400°C x 8h	1350°C x 8h	1350°C x 8h	1300°C x 8h	1300°C x 8h
Thermal Conductivity
400°C	W/m·K	0.41	0.4	0.51	0.41	0.5	0.25
600°C		0.45	0.44	0.54	0.45	0.52	0.29
800°C		0.5	0.48	0.57	0.49	0.55	0.34
1000°C		0.55	0.53	0.61	0.54	0.6	0.38

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Frequently asked questions (FAQs)

Can we visit your factory?

Absolutely! We welcome plant audits and visits to our facilities. Please note that Firebird insulation refractory and high-performance refractories are manufactured in separate plants. Let us know your requirements, and we can arrange a convenient schedule for your visit to ensure a smooth and informative experience.

How does Firebird ensure the quality of its refractory products?

At Firebird, quality assurance is integral to our operation, embodying our commitment to transparency and excellence. Here's how we ensure top-notch quality: Transparency in Production: After you place an order, we provide you with a detailed production plan, outlining each stage of the manufacturing process. Weekly Progress Updates: We keep you informed with weekly updates, so you always know the status of your order. Detailed Testing: Every batch of products undergoes thorough testing, and we provide a detailed test report that includes data on chemical composition, physical properties, and compliance with international standards. Comprehensive Inspections: We meticulously check the appearance, size, and weight of each product to ensure they meet our stringent quality criteria. Shipping Documentation: To maintain transparency and trust, we share photos of your order at the shipping stage, allowing you to see the final packaging and labeling.

Can you provide samples of your products?

Yes, we can provide samples of our products. We understand the importance of testing materials in your specific application and are happy to assist with samples upon request. Please contact our sales team to arrange for sample delivery.

Do you accept custom dimensions for your refractory products?

Absolutely. Firebird specializes in customizing refractory materials to meet specific customer requirements. Whether you need custom shapes, sizes, or specifications, our team can accommodate your needs. Please provide your detailed requirements, and we will work closely with you to deliver the perfect solution.

What is the typical delivery time for orders?

Our standard delivery time is generally between 10 to 15 days for most products. However, for specialized or customized bricks, the delivery time may extend to approximately one month. We strive to meet our customers' timelines and will provide an estimated delivery date upon order confirmation.

What payment methods do you accept?

We accept payments via T/T (Telegraphic Transfer) in major currencies such as Euro (EUR) and US Dollar (USD). Our payment terms are flexible, and we can accommodate different payment schedules based on the agreement.

Who are your main customers?

Firebird takes pride in its extensive global reach, serving a diverse clientele across more than 40 countries. Our customers range from Southeast Asia's dynamic industrial centers to the heartlands of the USA. We also have significant market presence in Europe, South America, and Africa. This broad geographical distribution allows us to cater to various industries, including glass manufacturing, steel production, and other high-temperature industrial applications, ensuring our products meet the specific needs of each region.