Category · Al₂O₃ 30 – 46% · Max 1500 – 1700 °C

Fire Bricks & Fireclay Refractories — Supplier from India

Fire bricks are the workhorse refractory family — fired clay-based bricks with aluminium oxide (Al₂O₃) between 30% and 46%, plus high-silica and mullite-bonded variants. They line industrial furnaces, kilns, chimneys and chambers operating up to 1500 °C; specialised silica grades extend to 1700 °C. The fireclay family is the starting point for most general-purpose refractory linings — competitive on cost, reliable in service, and well-understood by procurement and engineering teams worldwide. firebrickssource.com supplies the full range — dense fireclay, silica, mullite and pre-shaped arch / wedge bricks — manufactured and exported from Rajkot, Gujarat, India to industrial buyers across cement, steel, ceramics and chemical sectors.

Variants in stock

Grades of fire bricks

$Dense Fireclay Refractory Bricks — firebrickssource.com$

DFC

Dense Fireclay Bricks

General-purpose fireclay — chimneys, boilers, ladle outer linings, ceramic kilns.

Al₂O₃ 30 – 46% Max 1500 °C

$Silica Refractory Bricks — firebrickssource.com$

SIL

Silica Refractory Bricks

High-SiO₂ acidic refractory — coke ovens, glass furnace crowns, hot-blast stoves.

SiO₂ ≥ 94% Max 1700 °C

$Mullite Refractory Bricks — firebrickssource.com$

MUL

Mullite Bricks

Mullite-bonded, thermal-shock-resistant — kiln roofs, reheating furnaces, glass tanks.

Al₂O₃ 60 – 77% Max 1700 °C

$Arch & Wedge Fire Bricks — Refractory Shapes — firebrickssource.com$

AW No.1 · 2 · 3

Arch & Wedge Fire Bricks

Pre-shaped fireclay arch / wedge bricks for kiln crowns and chimney throats.

Al₂O₃ 30 – 46% Max 1500 °C

Properties overview

Fire-brick grades compared

Fire bricks & fireclay refractories — comparative properties
Grade	Al₂O₃ %	Max temp °C	Bulk density g/cm³	CCS MPa	Typical application
Dense Fireclay	30 – 46	1500	≥ 2.00	≥ 30	Boilers, chimneys, ceramic kilns
Silica	≤ 1 (SiO₂ ≥ 94)	1700	≥ 1.85	≥ 25	Coke oven, glass crown, stove
Mullite	60 – 77	1700	≥ 2.50	≥ 60	Kiln roof, glass tank, reheating
Arch & Wedge	30 – 46	1500	≥ 2.00	≥ 30	Kiln crowns, arches, throats
Typical certified values — actual batch values issued on the per-shipment test certificate. Values aligned with IS 1528 / ASTM C-series / EN 993 test methods.

Applications

Where fire bricks are used

Cement & Lime

Preheater, calciner back-up, lime shaft kilns, rotary kiln tail.

Steel & Foundry

Soaking pits, ladle outer linings, reheating furnace back-up.

Glass Furnaces

Silica crowns, regenerator cold-end, port-neck back-up.

Ceramics & Kilns

Tunnel kiln walls, shuttle kilns, kiln furniture supports.

Boilers & Power

Boiler back-up linings, combustion chambers, FBC walls.

Chemicals & Chimneys

Industrial chimneys, sulphur recovery, incinerators.

Datasheet

Download fire-bricks datasheet

Complete property table for all fireclay, silica, mullite and arch / wedge grades — chemistry ranges, density, porosity, RUL, PLC, dimensional tolerances.

Download PDF (datasheet)

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