novaphit® MST
novaphit® MST is a material of thermally expanded graphite in the form of a sandwich, consisting of layers of thermally expanded graphite (up to eight layers), expanded metal and sheet steel (up to seven layers). Thanks to the multi-layer construction from a combination of graphite foil and smooth metal inserts, this material achieves the highest thermal and mechanical properties as well as the lowest leak rates. The increased strength characteristics allow novaphit® MST to be used as a replacement for spiral wound gaskets. Possesses high pressure resistance, excellent adaptability in the flange and versatility of use, perfectly withstands dynamic loads.
|
Indicator name (for a thickness of 2 mm.) |
Rate |
|
Density, g/cm3: |
1,3 |
|
Compressibility,%: |
45 |
|
Recoverability,%: |
15 |
|
Ultimate tensile strength lengthwise, MPa, not less than |
30 |
|
Tensile strength broadwise, MPa, not less than |
25 |
|
Maximum allowable pressure, MPa (kgf / cm2, bar) |
25 |
|
Temperature range, оС |
from -240 to +550 |
|
Thickness, mm |
1.5, 2.0, 3.0, 4.0 |
|
Sheet dimensions, mm |
1000х1000 |
|
General information
|
Binding material: Tolerances:
Identification color: Marking:
Dimensional tolerances: |
- Firesafe (DIN EN ISO 10497 / API607 / BS6755) / BAM (O2: 200°C/130 bar) / TA Luft / DVGW / GL graphite zinc gray according to DIN 28 091-1 standards |
||
|
Physical characteristics (thickness DIN 28090-2 [g/cm³] 1.50 sample 2.00 mm) |
Name of indicators |
Technical documentation |
Physical unit
|
Value |
|
Density |
DIN 28 090-2 |
[g/cm³] |
1,30 |
|
|
Tensile strength |
DIN 52 910 |
|
|
|
|
Lengthwise |
|
[N/mm²] |
30 |
|
|
Broadwise |
|
[N/mm²] |
25 |
|
|
Compressive strength σdE/16 |
DIN 52 913 |
|
|
|
|
175°C |
|
[N/mm²] |
- |
|
|
300°C |
|
[N/mm²] |
≥45 |
|
|
Compressibility |
ASTM F 36 J |
[%] |
45 |
|
|
Recoverability |
ASTM F 36 J |
[%] |
15 |
|
|
Cold shrinkage ratio eKSW |
DIN 28 090-2 |
[%] |
42,0 |
|
|
Cold volume recovery ratio eKRW |
DIN 28 090-2 |
[%] |
3,5 |
|
|
Hot shrinkage ratio eWSW/300 |
DIN 28 090-2 |
[%] |
2,5 |
|
|
Hot recovery ratio eWRW/300 |
DIN 28 090-2 |
[%] |
3,0 |
|
|
Specific gas permeability |
DIN 3535-6 |
[mg/(m•s)] |
≤ 0,010 |
|
|
Gas permeability TA Luft |
DIN 28 090-2 |
[mg/(m•s)] |
≤ 0,0001 |
|
|
Chloride content (total) |
DIN 28 090-2 |
[ppm] |
≤ 50 |
|
|
Chloride content (water soluble) |
FZT PV-001-133 |
[ppm] |
≤ 20 |
|
|
Sum of chloride and fluorine |
|
[ppm] |
≤100 |
|