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Technical Data Sheet 333 (previously TDS 270)
Edition: 08/2015, supersedes all prior editions.
Please see the latest issue at www.reinz-industrial.com |
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Material
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AFM 33/2 is an asbestos-free gasket material. It consists of
aramide fibers and other asbestos substitutes that are resistant to high
temperatures and are processed with high-grade elastomers under
elevated pressure and temperature.
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Properties
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AFM 33/2 is a gasket material with controlled swelling
characteristics in oil. In spite of its controlled swelling in oil that results in particularly good conformability to sealing surfaces, AFM 33/2 exhibits dimensional
stability and good tensile strength. In addition, the material seals gases
very well.
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Application
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- for sealing engine, hydraulic, transmission, refrigerating oils and other
hydrocarbons
- for sealing air, mixtures of water and antifreeze & corrosion
inhibitors
- for sealed joints with low sealing pressure or uneven sealing surfaces, e.g. for
covers, housings, valve covers, oil pans
- for components that are subject to high mechanical stress, yet require a
relatively "soft" gasket.
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Surfaces
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As standard, both sides of AFM 33/2 are coated with a non-stick, high-friction layer that greatly facilitates disassembly.
In most cases, additional surface treatment is unnecessary.
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Technical Data
(nominal thickness
2.00 mm)
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Density
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g/cm³ |
1.55 - 1.75 |
Ignition loss acc to DIN 52 911
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% |
< 40 |
Tensile strength
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acc. to ASTM F 152 accross grain
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N/mm² |
> 14 |
acc. to DIN 52 910 accross grain
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N/mm² |
> 10 |
Residual stress acc. to DIN 52 913
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| 16 h, 175 °C |
N/mm² |
≈ 32 |
Compressibility and recovery
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acc. to ASTM F
36, procedure J
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compressibility
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% |
8 - 15 |
recovery
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% |
> 55 |
Sealability against nitrogen
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acc. to DIN 3535, part 6 FA
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mg/(s·m) |
< 0.1 |
Swelling acc. to ASTM F 146
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in IRM 903 Oil (replaces ASTM Oil No. 3)
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| 5 h,
150 °C |
increase
in thickness
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% |
10 - 30 |
increase in weight
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% |
10 - 30 |
in ASTM Fuel B |
5 h, room temp.
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increase in thickness
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% |
10 - 30 |
increase in weight
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% |
10 - 20 |
Short-term peak temperature
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°C |
400 |
Maximum continuous temperature
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°C |
200 |
Maximum operating pressure
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bar |
120
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| DIN 28091-2: |
Cold creep εKSW |
% |
8 - 15 |
Cold recovery εKRW |
% |
4 - 8 |
Hot creep during service εWSW/T |
% |
60 - 70 |
Hot recovery εWRW/T |
% |
≈ 0.6 |
Recovery R |
mm |
≈ 0.011 |
Sealing parameters, see corresponding table
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The data quoted above are valid for the material "as delivered" without
any additional treatment. In view of the countless possible
installation and operating conditions, definitive conclusions cannot be
drawn for all applications regarding the behaviour in a sealed joint.
Therefore, we do not give any warranty for technical data, as they do
not represent assured characteristics. If you have any doubt, please
contact us and specify the exact operating conditions.
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Form of delivery
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| Gaskets |
according to a drawing, dimensions supplied, or other arrangement.
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| Sheets |
1500 x 1500 mm (standard size) |
Nominal thicknesses and tolerances acc. to DIN 28091-1 (mm)
Dimensional limits within a shipment
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0.30
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±0.10
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0.50
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±0.10
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0.75
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±0.10
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1.00
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±0.10
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1.50
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±0.15
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2.00
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±0.20
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Max. thickness variation in a sheet:
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| 0.1 mm for sheet thickness ≤1.00 mm, and 0.2 mm for thickness >1.00 mm |
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Sheet as a PDF document 
