Alumina-silica properties (ALF)

| Colour and form | White, continuous filament |
| Chemical composition | 70% Al2O3 / 30% SiO2 |
| Filament diameter | 7 µ m Ø |
| Crystal type | Gamma Al2O3 |
| Density | 2.9g/cm3 |
| Tensile strength | 200kgf/mm2 |
| Tensile modulus | 17,000kgf/mm2 |
Yarn
| Type/Tex | diameter | filament | TPM | ply | length/package |
|---|---|---|---|---|---|
| 67 | 0.3mm | 7 mu | 90 | 2 | 2985mtrs |
| 130 | 0.5mm | 7 mu | 90 | 2 | 3070mtrs |
| 200 | 0.6mm | 7 mu | 90 | 3 | 2000mtrs |
| 400 | 0.7mm | 7 mu | 90 | 3 | 1000mtrs |
| 600 | 1.0mm | 7 mu | 170 | 3 | 666mtrs |
| 3700 (rope) | 2.0mm | 7 mu | 100 | 3 | 130mtrs |
Cloth
| Type | weave | width | weight | thickness | roll-length |
|---|---|---|---|---|---|
| 3025 | twill | 100cm | 440g/m2 | 0.35mm | 30m |
| 1111 | plain | 100cm | 500g/m2 | 0.68mm | 30m |
| 0909 | plain | 100cm | 145g/m2 | 0.21mm | 30m |
| 2626 | plain | 100cm | 280g/m2 | 0.21mm | 30m |
| 2525 | plain | 100cm | 128g/m2 | 0.12mm | 30m |
| 4018 | double twill | 100cm | 940g/m2 | 0.80mm | 30m |
Sewing thread
| Type | diameter | composite | usage |
|---|---|---|---|
| 5760 | 1.0mm | A.L.F | sewing by hand |
| 1280 | 0.30mm | A.L.F/Rayon | sewing by machine |
| 2560 | 0.53mm | A.L.F/Rayon | sewing by machine |
| 5120 | 0.76mm | A.L.F/Rayon | sewing by machine |
Tape
| Type | weave | weight | thickness | roll-length |
|---|---|---|---|---|
| 18S | twill | 830g/m2 | 0.60mm | 30m |
| 25S | twill | 440g/m2 | 0.32mm | 30m |
| 25D | twill | 1480g/m2 | 1.30mm | 30m |
| 50S | twill | 400g/m2 | 0.32mm | 30m |
| 50D | plain | 400g/m2 | 0.32mm | 30m |
Sleeve
| Type | internal diameter | weight/meter | roll-length |
|---|---|---|---|
| SV1 | 1mm | 2.3 grams | 50m |
| SV2 | 2mm | 3.7 grams | 50m |
| SV6 | 6mm | 12 grams | 25m |
| SV12 | 12mm | 24 grams | 25m |
| SV20 | 20mm | 46 grams | 25m |
| SV40 | 40mm | 90 grams | 25m |
| SV60 | 60mm | 194 grams | 25m |
| SV85 | 85mm | 340 grams | 25m |
| SV95 | 95mm | 380 grams | 25m |

Current applications include:
- Thermal insulation rings
- Furnace linings
- Heat-shielding
- Thermal insulation sealers or packing materials
- Thermal insulation coverings for thermocouples, cables and wires
- Roller covers for tempered glass manufacturing
- Filters for molten metals • Spacers for heat treatment
- Abrasives for plastic whetstones
- Insulators around generator and aircraft/rocket engines
- Catalyst carriers
- Electrical and thermal insulators for diesel particulate filters (DPF) systems
Interested? For further details please contact
Cristex Thermal Products
0044 (0)1282 680 322

