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Magma Ceramics & Catalysts

Refractory Materials

The experienced team at Magma has developed a range of materials suitable for use in a wide variety of applications and industries. Each recipe is designed to optimise the properties of the refractory materials and ensure optimal performance from the finished product.

The information given below is intended to give an overview of the materials we use and the applications that they are suitable for. If you have a specific request, or can’t see the material that you are looking for, please get in touch.

Forehearth & Melter
Material Ref: SiO2
(%)
Al2O3
(%)
ZrO2
(%)
 
AP
(%)
BD (g/ml) CCS (MN/m2) Material: Application Areas:
S1F 41 55.5  - 23.5 2.15 35 Sillimanite Roof blocks, burner blocks, zone dividers, pyro & thermocouple tubes, accessories
Z7C 17 52 30 21 2.92 60 Zirconia Mullite Roof blocks, burner blocks, zone dividers, pyro & thermocouple tubes, accessories, stirrer cover tiles
FM5T 20.5 79  - 19 2.58 50 Mullite Hot zone roof blocks, burner blocks & accessories, Melter spy hole blocks & burner quarls
SSM6 20.5 78  - 19 2.56 60 Mullite Forehearth glass channel blocks, spout bowls
SGP 41.5 56  - 20 2.27 60 Sillimanite Skimmer blocks
S42 52 43.5  - 24.5 2 30 Sillimanite Regenerator packing shapes
AM91 10 89  - 25.5 2.64 35 Alumina Mullite Orifice rings
Z7G 17 53 29 18.5 2.97 80 Zirconia Mullite Spout bowls, sills for coloured, more corrosive glasses
S1LM 40.5 57  - 25 2.12 35 Sillimanite Sills
S1T 41 55.5  - 23.5 2.15 35 Sillimanite Sills
SSM7 21 78  - 18 2.58 65 Mullite More arduous channel applications
Z1 3.5 1.3 63.5 25.5 3.35 25 Zircon Pyro & thermocouple tubes, accessories
SLT 46 50.5  - 42 1.46 15 Sillimanite Insulating applications, flue blocks, spout bowl cover tiles
AZ1 9 78 12.5 22 3.02 55 Alumina Zircon Spout bowls, glass contact accessories
HMAC 24 75  - 17 2.55 60 Mullite More arduous channel & other glass contact applications
Studio Glass
Material Ref: SiO2
(%)
Al2O3
(%)
ZrO2
(%)
AP (%) BD (g/ml) CCS (MN/m2) Material: Application Areas:
SGP 41.5 56  - 20 2.27 60 Sillimanite Crucibles, accessories
SGP-W 42.5 55  - 21 2.24 60 Sillimanite Crucibles, accessories, enhanced thermal shock resistance
Z7G 17 53 29 18.5 2.97 80 Zirconia Mullite Crucibles for coloured, more corrosive, glasses
DCA 13.5 72.5 13 23 2.8 65 Zircon Alumina Mullite Crucibles for coloured, more corrosive, glasses
S23 46.5 50  - 29.5 1.9 30 Sillimanite Gathering Rings
S1T 41 55.5  - 23.5 2.15 35 Sillimanite Gathering rings
Z7 17.5 52 30 21.5 2.9 60 Zirconia Mullite Crucibles, smaller shapes for coloured, more corrosive glasses
S1F 41 55.5  - 23.5 2.15 35 Sillimanite Non glass contact accessories
Non Ferrous
Material Ref: SiO2
(%)
Al2O3
(%)
ZrO2
(%)
MgO
(%)
Cr2O3
(%) 
CaO AP (%) BD (g/ml) CCS (MN/m2) Material: Application Areas:
AM91F 7.5 88.5 3.5 - - - 24.5 2.75 40 Alumina Mullite Induction furnace crucibles & rare earth metal applications
AM91C 8.5 87.5 3.5 - - - 19.5 2.96 60 Alumina Mullite Induction furnace crucibles, larger sizes
Z1 3.5 1.3 63.5 - - - 25.5 3.35 25 Zircon Crucibles, one shot, high temperature, precious metals
Z11 0.2 0.4 93 - - 3.8 19.5 4.6 30 Lime Stabilised Zirconia Crucibles, high purity, high melting point
SSM4 22 76 - - - - 19.5 2.5 60 Mullite Chemical reactor liners, accessories
AZ1 9 78 12.5 - - - 22 3.02 55 Alumina Zircon Aluminium
AZ4 8.5 78 12.5 - - - 23.5 3.05 50 Alumina Zircon Aluminium
ZNP 35 1.3 64 - - - - - - Zircon Zircon dry powder ramming, backing mix
CAL 1.6 94 - - 4.4 - 22.5 3 65 Alumina Chrome Induction Furnace Crucibles
Saggers & Miscellaneous
Material Ref: SiO2
(%)
Al2O3
(%)
AP (%) BD
(g/ml)
CCS
(MN/m2)
Material:
FM5T 20.5 79 19 2.58 50 Mullite
AM1 33.5 64.5 22 2.35 40 Alumina Enhanced Sillimanite
FA2 2.6 97.5 23 2.98 60 Alumina
TA1 - - - - - Alumina
TA4 0.4 98.3 21 2.95 30 Alumina, Silica free for SiO2 sensitive applications
AM91F 7.5 88.5 24.5 2.75 40 Alumina Mullite
S1F 41 55.5 23.5 2.15 35 Sillimanite
VS3 7.5 92 19 2.89 55 Alumina Mullite
TA1G 0.4 99.4 20.5 3 40 Alumina, Silica free for SiO2 sensitive applications
Steel
Material Ref: SiO2
(%)
Al2O3
(%)
ZrO2
(%)
Cr2O3
(
%)
MgO
(
%)
AP
(
%)
BD (g/ml) CCS (MN/m2) Material: Application Areas:
SA1 1.5 98 - - - 17 3.1 65 Alumina Steel ladle nozzles
MSA3 1.4 93.5 - - 4.4 18 3 120 Alumina Spinel Steel ladle wellblocks
TA1 - - - - - - - - Alumina Steel ladle nozzles
CAL 1.6 94 - 4.4 - 22.5 3 65 Alumina Chrome Induction furnace crucibles with enhanced slag resistance
Mag B 0.3 - - - 97 - - - Magnesia Basic dry powder ramming mix
M1 1.5 3 - - 95.5 19 2.82 35 Magnesia Crucibles, pouring spouts for basic slag chemistry
Superalloys
Material Ref: SIO2 Al2O3 ZrO2 Cr2O3 MgO AP (%) BD (g/ml) CCS (MN/m2) Material Application Areas:
AM91C 8.5 87.5 3.5 - - 19.5 2.96 60 Alumina Mullite Induction furnace crucibles
FA1 2.6 97.5 - - - 21 3.09 75 Alumina Large induction furnace crucibles
FA2 26 97.5 - - - 23 2.98 60 Alumina Induction furnace crucibles
SMC 43 54.5 - - - 20 2.28 40 Sillimanite Dip samplers, tundish, launders, crucibles
S1F 41 55.5 - - - 23.5 2.15 35 Sillimanite Distribution boxes, launders, tundish, nozzles, baffles, accessories
S1M 41.5 55.5 - - - 25 2.1 35 Sillimanite Smaller crucibles, tubes, exit nozzles
VS3 7.5 92 - - - 19 2.89 55 Alumina Mullite Distribution boxes, launders, tundish, nozzles, baffles, accessories
S1A 32 66 - - - 25 2.25 40 Sillimanite Distribution boxes, launders, tundish, nozzles, baffles, accessories
S6 40.5 56 - - - 20 2.28 40 Sillimanite Distribution boxes, launders, tundish, nozzles, baffles, accessories
AM2 31 65.5 - - - 23 2.3 45 Alumina Mullite Pouring spouts, tundish
TA1 1.5 98 - - - - - - Alumina Nozzles, crucibles, saggers
TA3 7.5 92 - - - 25.5 2.68 40 Alumina T-pot crucible pouring spouts, saggers
CAL 1.6 94 - 4.4 - 22.5 3 65 Alumina Chrome Induction furnace crucibles
Mag B 0.3 - - - 97 - - - Magnesite Basic dry powder ramming,  backing mix
ZNP 35 1.3 64 - - - - - Zircon Zircon dry powder ramming, backing mix
M1 1.5 3 - - 95.5 19 2.82 35 Magnesia Crucibles, pouring spouts for basic slag chemistry
F45 59.5 39.5 - - - 23.5 2.03 - Fused Silica, Alumina High thermal shock resistance t-pot crucibles

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