novaphit® SSTC
novaphit® SSTC is a thermally expanded graphite material, reinforced with expanded acid-resistant stainless steel (1.4404). A special type of reinforcement provides better compressibility and recoverability of the material, a decrease in gas permeability in comparison with materials reinforced with smooth or perforated sheet metal. In production, special heat-resistant graphite with a low oxidation is used, which ensures durable and reliable operation of the seal at high temperatures and cyclic loads.
novaphit® SSTCTA-L is a material specially designed for industries with rigorous requirements for gas permeability at high temperatures and pressures. Classified as high quality sealing material according to VDI 2440 and TA Luft test criteria.
Specifications:
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Indicator name (for a thickness of 2 mm) |
Value |
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Density, g / cm3 |
1,35 |
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Compressibility,%, not less than |
23 |
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Recoverability,%, not less than |
10 |
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Ultimate tensile strength lengthwise, MPa, not less than |
17 |
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Tensile strength broadwise, MPa, not less than |
8 |
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Maximum allowable pressure, MPa (kgf / cm2, bar) |
20 (200) |
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Temperature range, оС |
from-240 to +650 |
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Thickness, mm |
1,0; 1,5; 2,0; 3,0 |
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Sheet dimensions, mm |
1000х1000; 1500х1500 |
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General information
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Elastomer: Tolerances: Non-stick coating: Identification color: Dimensional tolerances: |
free of organic elastomers DVGW / BAM (макс. 200°C/130бар) / Fire Safe / GL No coating (graphite) black according to DIN 28 091-1 standards |
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Physical characteristics (sample thickness 2.00 mm) |
Name of indicators |
Technical documentation |
Name of values |
Technical documentation |
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Name |
DIN 28 091-4 |
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GR-10-I-1M-Cr |
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Density |
DIN 28 090-2 |
[g/cm³] |
1,35 |
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Tensile strength |
DIN 52 910 |
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Lengthwise |
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[N/mm²] |
17 |
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Broadwise |
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[N/mm²] |
8 |
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Compressive strength sdE/16 |
DIN 52 913 |
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175°C |
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[N/mm²] |
47 |
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300°C |
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[N/mm²] |
45 |
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Recoveribility |
ASTM F 36 J |
[%] |
15 |
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Cold shrinkage ratio eKSW |
DIN 28 090-2 |
[%] |
39,0 |
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Cold volume recovery ratio eKRW |
DIN 28 090-2 |
[%] |
4,0 |
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Hot shrinkage ratio eWSW/300 |
DIN 28 090-2 |
[%] |
2,0 |
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Hot recovery ratio eWRW/300 |
DIN 28 090-2 |
[%] |
3,5 |
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Recoverability R |
DIN 3535-6 |
[mm] |
0,070 |
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Specific gas permeability |
DIN 28 090-2 |
[mg/(m•s)] |
≤0,100 |
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Specific gas permeability l2,0 |
DIN 28 090-2 |
[mg/(m•s)] |
0,050 |
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Resistance to environment |
ASTM F 146 |
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ASTM IRM903 |
5hour./150°C |
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Weight change |
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[%] |
30 |
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Change in thickness |
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[%] |
6 |
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ASTM Fuel B |
5hour./23°C |
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Weight change |
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[%] |
30 |
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Change in thickness |
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[%] |
6 |
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