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Product Range

Castables, insulating castables and refractory mortars.

This page consolidates the technical data for dense castables, insulating castables and mortars into responsive tables that remain usable across desktop and mobile layouts.

Dense castables for multiple alumina and temperature requirements.
Insulating castables for thermal efficiency and backup lining duty.
Mortar grades aligned to different alumina brick compositions.
Castables
VR Cast Super

Dense castables

Multiple grades for different alumina levels, crushing strength and load conditions.

VR Cast K

Application-driven selection

Suitable options for varying service temperatures and lining requirements.

VR Cast 50

Installation support products

Mortars and castables presented alongside primary refractory brick ranges.

VR Set 50

Related mixes

Specialized fine-setting and insulating products for additional installation needs.

Specification of castables

Dense castable product range from the legacy catalog, preserved in a cleaner comparison layout.

Particulars VRCAST A VRCAST K VRCAST C VRCRETE SUPER VRCRETE NORMAL VRCAST 94 VRCAST 97 VRSET-50 FINE
General properties
Service temp. deg C (max) 1750 1600 1500 1450 1400 1800 1850 1500
Grain size mm (max) 5.0 5.0 5.0 5.0 5.0 5.0 5.0 0.5
Water required for casting (%) 7.5-8.5 9.5-10.5 9.5-10.5 10-11 10.5-11.5 8.5-9.5 8.5-9.5 8.5-9.5
Chemical properties
Al2O3 (min.) 90 60 50 70 45 94 96 50
Fe2O3 (max.) 0.8 1.0 1.30 5.0 4.0 0.3 0.3 4.0
Physical properties
Bulk density (gm/cc) dried at 110 deg C for 24 hrs. (min.) 2.75 2.20 2.10 2.50 2.10 2.80 2.80 -
Cold crushing strength (kg/cm2) at 110 deg C 600 350 350 350 250 600 400 -
Thermal properties
Refractoriness under load deg C (min.) 1820 1683 1665 1683 1564 1835 1835 1835
Permanent linear change (%) ±1.00 ±1.50 ±1.00 ±1.00 ±1.00 ±0.50 ±0.80 -

Note: The original catalog states that related products can be manufactured and supplied as per customer specification.

Insulating castables

Lightweight castable range for insulation-focused applications.

Particulars VRLYTE 4 VRLYTE 7 VRLYTE 9 VRLYTE 11 VRLYTE 13 VRLYTE 15
General properties
Service temp. deg C (max) 1000 1100 1200 1300 1350 1350
Grain size mm (max) 6.0 6.0 6.0 6.0 6.0 6.0
Water required for casting (%) 80-100 60-65 38-43 39-34 26-31 23-28
Chemical properties
Fe2O3 (max.) 11.00 8.50 6.00 3.50 3.50 3.20
Physical properties
Bulk density (gm/cc) dried at 110 deg C for 24 hrs. (min.) 550 850 1000 1250 1450 1600
Cold crushing strength (kg/cm2) at 110 deg C 4 12 15 35 50 90
800 deg C 2 4 5 25 30 60
1000 deg C - 6 10 25 30 60
Thermal properties
Refractoriness under load deg C (min.) - 1340 1400 1400 1400 1430
Permanent linear change (%) at 800 deg C ±0.40 ±0.80 ±0.60 - - -
1100 deg C ±0.60 ±1.20 - ±0.20 ±0.20 ±0.20
1300 deg C - - - ±1.00 ±0.80 ±1.00

Mortars

Mortar grades listed for different refractory brick alumina compositions and service temperatures.

Particulars Al2O3 (%) Fe2O3 (%) PCE / Orton cone deg C Service temp. deg C Application area
VR Mortar IS-6 22.0 2.5 20 / 1564 1350 For laying of 30% Al2O3 bricks
VR Mortar-40 38.0 2.8 31 / 1683 1450 For laying of 40% Al2O3 bricks
VR Mortar-50 48.0 3.0 32 / 1717 1500 For laying of 50% Al2O3 bricks
VR Mortar-60 55.0 3.5 33 / 1743 1550 For laying of 60% Al2O3 bricks
VR Mortar-70 65.0 3.5 34 / 1763 1600 For laying of 70% Al2O3 bricks
VR Mortar-80 75.0 2.5 36 / 1804 1700 For laying of 80% Al2O3 bricks
VR Mortar Sill 55-52 1.5 34 / 35 1450 Ceramic

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