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Asbestos Gasket Sheets for industrial sealing material used in pipelines, machinery, and high-pressure systems with vari.....
Asbestos Gasket Sheet, also called Compressed Asbestos Fiber Jointing Sheet (CAF Sheet) or Asbestos Jointing Sheet, is made by blending asbestos fiber, natural rubber, and heat-resistant inorganic fillers. The material is formed through rolling and pressing under controlled conditions to ensure uniform density and reliable sealing performance. It serves as a sealing material for flanges in pipelines, pressure vessels, and mechanical joints. Based on composition and working conditions, it is categorized into high-pressure, medium-pressure, and low-pressure types, offering an economical and efficient sealing option for industrial applications.
Material Composition: Asbestos fiber, natural rubber, and heat-resistant fillers.
Types: High-pressure, medium-pressure, and low-pressure grades.
Models: XB150, XB200, XB250, XB300, XB350, XB400, XB450, XB510.
Thickness Range: 0.5 mm – 6 mm.
Sheet Sizes:
4500 × 1500 mm
4100 × 1500 mm
3850 × 1300 mm
3810 × 2700 mm
1500 × 2000 mm
1500 × 1500 mm
1500 × 1350 mm
1500 × 1000 mm
1270 × 1270 mm
Custom Options: Non-standard sizes can be produced according to project requirements.
Packaging: Supplied in rolls or packed on wooden pallets/cases, typically 1000–2000 kg per unit for safe handling and transport.
Products data sheet GB/T 3985---2008
Item |
XB510 |
XB450 |
XB400 |
XB350 |
XB300 |
XB250 |
XB200 |
XB150 |
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Tensile strength MPa≥ |
21 |
19.0 |
15.0 |
12.0 |
9.0 |
7.0 |
6.0 |
5.0 |
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Burning Loss %≤ |
28 |
30 |
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Compressibility % |
7 ~ 17 |
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Rebound degree |
45 |
40 |
35 |
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Creep Stress-relaxation≤ |
50 |
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Aging Coefficient ≥ |
0.9 |
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Density g/cm³ |
1.9 ~ 2.0 |
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Normal temperature Pliability |
Bend 180 degree on the round column (the column diameter is 12 multiple sample thickness), No crack |
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Nitrogen leakage rate [(ml/h.mm)] ≤ |
500 |
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Steam Airtightness |
Temperature ℃ |
500~510 |
440~450 |
390~400 |
340~350 |
290~300 |
240~250 |
190~200 |
140~150 |
|
Steampressure MPa |
13~14 |
11~12 |
8~9 |
7~8 |
4~5 |
3~4 |
2~3 |
1.5~2 |
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Request |
Keep for 30 minutes without Leakage |
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