Grate paper:
Made from High carbon sr grate through chemically treatment and rolled at high temperature. It is the base material for various grate seals.
Widely used in electric power, petroleum, chemical industry, instrument, machinery, diamond and other industries, such as machine, pipe, pump, valve dynamic seal and static seal, it is an ideal new sealing material to replace traditional sealing materials,like:rubber, fluorine plastic, asbestos and so on.
The grate paper has high heat dissipation efficiency, small occupied space, light weight, uniform heat conduction in two directions, and without "hot spot" area.
Description | Grade I | Grade II | Grade III |
Carbon content（%） | ≥99.9 | ≥99 | ≥99 |
Tensile strength (mPa) | ≥4.5 | ≥4.5 | ≥4.0 |
Sulfur content (ppm) | ≤300 | ≤800 | ≤1200 |
Chlorinity (ppm) | ≤35 | ≤35 | ≤50 |
Density tolerance(g/cm3) | ±0.03 | ±0.03 | ±0.05 |
Thickness deviation(mm) | ≤1.5 ±0.03 | >1.5 ±0.03 | >1.5 ±0.05 |
Compression ratio( %) | 35~55 | ||
Resilience rate( %) | ≥10 | ||
Stress relaxation(%) | ≤10 | ||
Working temperature | -200 ℃- 1650 ℃ (non-oxidizing medium) -200 ℃ - 850 ℃ (in oxidation medium) | ||
Thickness | 0.03mm/0.05mm/0.07mm/0.1mm/0.13mm/0.15mm/0.20mm/0.25mm/0.3mm/0.4mm/0.5mm/0.7mm/ 0.8mm/1.0mm/1.5mm/2mm or as required | ||
Size and shape | As required. | ||
Notice:
1. Please clear size, quantity, thickness, etc. Better to provide a drawing/sketch;
2. Please clear processing workmanship, simple cutting/punching/sawing,etc.
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