Graphite Tape for SWG - 50 Meters
Graphite Tape for SWG - 50 Meters
DEMIGRAPH® Graphite Tape
Slit tapes DEMIGRAPH® are manufactured with the use of a whole range of DEMIGRAPH® graphite foil with further cut to any required width upwards 4 mm / 1/8 " with high precision which makes it an excellent filler for production of quality spiral wound gaskets and graphite die-molded rings.
Due to special patented technology DEMIRAPH® tapes could be produced with high strength which solves the problem of breaking-up of filler for SWG's and graphite rings production.
Huge length of winding (up to 100m / 330’) makes possible longer continuous production and manufacturing of large diameter SWG’s.
APPLICATIONS:
Filler material for spiral wound gaskets and die-molded rings.
MAIN FEATURES AND PROPERTIES:
- Huge length of winding (up to 100m / 330’);
- Consistently accurate width and high strength.
- Resistance to high temperatures.
- Impermeability to gases and fluids.
- Zero sulphur and halogen content.
- Anti-sticking
- Fire-safety
- Absence of binders.
FORMS OF SUPPLY
Thickness …………………….. 0.38, 0.5, 0.76 mm / .015, .020, .030”
Width ……………………………4.0 – 130 mm / 1/8 - 5”
Length of winding ……….. 30, 50, 60, 90, 100 m / 100, 165, 200, 330’
Density …………………………. 1.0, 0.7, 1.12 g/cc / 62, 44, 70 lb/ft3
AVAILABLE OPTIONS OF GRAPHITE FOIL
Parameter |
Grade B Industrial |
Grade G High-purity |
Grade D Nuclear |
Grade C Anti-oxidation and аnti-corrosion |
Grade T High-purity and oxidation resistant |
Grade 1T Ultra-low losses |
Carbon, % |
> 98,0 |
> 99,0 |
> 99,85 |
> 98,0 (99,0*) |
> 99,0 |
> 99,0 |
Ash, % |
< 2,0 |
< 1,0 |
< 0,15 |
< 2,0 |
< 1,0 |
< 1,0 |
Sulfur, ppm |
< 200 |
< 100 |
< 50 |
< 100 |
< 100 |
< 100 |
Chlorine**, ppm |
< 40 |
< 40 |
< 20 |
< 40 |
< 20 |
< 20 |
Fluorine**, ppm |
< 20 |
< 10 |
< 10 |
< 10 |
< 10 |
< 10 |
Total halogens (Cl+F+Br)** , ppm |
< 200 |
< 100 |
< 50 |
< 200 |
< 100 |
< 100 |
Tensile strength, MPa |
> 4,5 (> 700 psi) |
> 4,5 (> 700 psi) |
> 4,0 (> 700 psi) |
> 5,0 (> 725 psi) |
> 5,0 (> 725 psi) |
> 5,0 (> 725 psi) |
Compressibility, % |
> 40 |
> 40 |
> 40 |
> 40 |
> 40 |
> 40 |
Recoverability, % |
> 10 |
> 10 |
> 8 |
> 10 |
> 10 |
> 10 |
Oxidation and corrosion inhibitor |
- |
- |
- |
yes |
yes |
yes |
Weight loss (670 °C / 1238 °F), %/h |
< 12 |
< 12 |
- |
< 4 |
< 3 |
< 1 |
Compliance to special requirements |
DVGW DIN 3535-6 |
BAM; ASTM F2168 class 2 (B) |
PMUC norms; GS RC PVE 011; BAM; ASTM F2168 class 2 (B) |
MESC 85/203; EN 14772 §6.7; ASTM F2168 class 2 (A); DIN-28091-4 |
MESC 85/203; EN 14772 §6.7; ASTM F2168 class 2 (A); DIN-28091-4 |
MESC 85/203; EN 14772 §6.7; ASTM F2168 class 2 (A); DIN-28091-4 |