Unshaped Refractories / Refractory Mortars

70% Al₂O₃ Mortar Refractory Mortars

70% Al₂O₃ Mortar is the 68-72% Al₂O₃ grade in Shanker Agencies’ refractory mortars range, rated for continuous service to 1700°C.

Request 70% Al₂O₃ Mortar Quote Call +91 98999 57888

$70% Al₂O₃ Mortar grade refractory mortars supplied by Shanker Agencies$

Grade

70% Al₂O₃ Mortar

Al₂O₃ content

68-72%

Max service temperature

1700°C

Bulk density

2.45 g/cc

70% Al₂O₃ Mortar technical specification

Typical values for 70% Al₂O₃ Mortar refractory mortars. Test methods vary by property and product family, so confirm the applicable standard against the manufacturer datasheet before specifying.

Property	70% Al₂O₃ Mortar
Al₂O₃ content	68-72%
Bulk density	2.45 g/cc
Application	High alumina 70% bricks
Max service temperature	1700°C

Grade designations and equivalents

How 70% Al₂O₃ Mortar is referenced across Indian and export naming conventions.

SAPL grade code	70% Al₂O₃ Mortar
Alumina content	68-72% Al₂O₃
Max service temperature	1700°C

Where 70% Al₂O₃ Mortar is used

Brick jointing and bedding for refractory linings

Surface finishing of cast or rammed refractory shapes

Expansion joint filling in long brick courses

Hot-face patching of small eroded areas

Anchor pocket filling around stainless steel anchors

Boiler refractory brick laying, water wall + roof

Acid plant tile and brick lining (acid-proof grades)

Full refractory mortars range

Compare 70% Al₂O₃ Mortar against every grade SAPL stocks in this family.

Grade	Al₂O₃ content	Bulk density	Application	Max service temperature
Fireclay Mortar	30-42%	1.85 g/cc	Fireclay brick jointing	1400°C
50% Al₂O₃ Mortar	50-55%	2.20 g/cc	Mid-range alumina bricks	1600°C
70% Al₂O₃ Mortar	68-72%	2.45 g/cc	High alumina 70% bricks	1700°C
80% Al₂O₃ Mortar	78-82%	2.60 g/cc	High alumina 80/90% bricks	1750°C
Magnesia Mortar	-	2.70 g/cc	Magnesia / MgO-C brick zones	1700°C
Insulating Mortar	40-50%	1.10 g/cc	IFB jointing	1400°C
Acid-Proof Mortar	-	1.95 g/cc	Acid-proof bricks / tiles	500°C

← 50% Al₂O₃ Mortar 80% Al₂O₃ Mortar →

Installation notes

1Match the mortar chemistry to the brick, never use fireclay mortar with high alumina bricks above HA-70
2Mix dry powder with measured potable water (typically 22–30% by weight) until smooth
3Apply joint thickness of 1.5–3 mm using a steel trowel on bedding surface AND brick face
4Lay bricks within 10 minutes of mortar application before initial set
5Hammer-tap each brick into final position, never adjust after the mortar has stiffened
6Allow 24 hours air-set before any heat-up; first heat-up at 25°C/hour to 200°C with a 4-hour soak
7For acid-proof furan mortar: 7-day cure at 25°C before any chemical exposure

Disclaimer: values are typical and compiled by Shanker Agencies Pvt. Ltd. from standard industry data and published manufacturer specifications. They are indicative, not a guarantee. Confirm the exact grade datasheet before specifying. For a certified datasheet or quotation, contact info@shankeragencies.com or +91 98999 57888.