Graphite Sheet Gaskets Grafilit SL
MATERIAL
Gasket material with excellent creep, strength, chemical stability and high tightness. Graphite itself or laminated with flat / tanged stainless steel insertion is used as a temperature and chemical resistant gasket in chemical, petrochemical and many other industries.
ROPERTIES AND APPLICATION
GRAFILIT® SL is a gasket material with excellent strength and creep resistance, chemical stability and a high tightness rate. Because of a stainless-steel insertion it is easier for handling and installation compared to the non-reinforced. GRAFILIT® SL is suitable for wide range of applications especially for higher operating pressures like in gas supply.
BASIS
Flexible graphite sheets laminated with flat stainless-steel insertion (AISI 316; 0.05mm)
APPROVALS APPLIED FOR
BAM (oxigen), DIN-DVGW, DIN 35356, DVGW KTW, DVGW VP 401 (HTB)
TECHNICAL DATA
Typical values for a thickness of 1.5 mm
DIMENSIONS OF STANDARD SHEET
- Sheet size (mm):1000 x 1000 | 1500 x 1500
- Thickness (mm): 1.0 | 1.5 | 2.0 | 2.5 | 3.0
| Compressibility | ASTM FA36 | % | 45 |
| Recovery | ASTM FA36 | % | 13 |
| Stress resistance (16h, 300°C) | DIN 52913 | Mpa | 49 |
| Permeability to nitrogen (40bar, RT) | DIN 35356 | mg/(s.m) | <0.05 |
| Ash content of graphite | DIN 51903 | % | <1 |
| Chloride content | FSA NMG 202 | ppm | <50 |
| Fluoride content | FSA NMG 203 | ppm | <50 |
| Density of the graphite | DIN 28090-2 | g/cm3 | 1.0 |
| Compression modulus | DIN 28090-2 | ||
| At room temperature: Eksw | % | 41 | |
| At elavated temperature: Ewsw/300°C | % | 1.1 | |
| Percentage creep relaxation | DIN 28090-2 | ||
| At room temperature: Eksw | % | 4.5 | |
| At elavated temperature: Ewsw/300°C | % | 4.0 | |
| Recovery R | DIN 28090-2 | mm | 0.080 |
| Operating conditions | |||
| Continuous use max. temperature* | |||
| Air or oxidizing atmosphere | °C/°F | 450/842 | |
| Reducing or inert atmosphere | °C/°F | 700/1292 | |
| Continuous use min. temperature* | °C/°F | -200/-328 | |
| Continuous use max. pressure* | bar/psi | 100/1450 |