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O-Rings - Trelleborg Sealing Solutions - #19

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Text version of the page
O-Ring
Table VIII Material specification for standard FKM
FKM 70 Shore A
FKM 75 Shore A
FKM 80 Shore A
FKM 90 Shore A
Hardness
DIN 53 505 ASTM D 2240
Shore A
70 ± 5
75 ± 5
80 ± 5
90 ± 5
Tensile strength
DIN 53 504 ASTM D 412
MPa N/mm2
> 10
> 10
> 10
> 10
Elongation at break
DIN 53 504 ASTM D 412
%
> 125
> 125
> 120
> 100
Compression set
24h/ 175 °C
DIN ISO 815B ASTM D 395B
%
< 20
< 20
< 20
< 20
Heat aging
72h/250 °C
DIN 53 508 ASTM D 573
Change of hardness
Shore A
max +10
max +10
max +10
max +10
Change of tensile strength
%
max -25
max -25
max -25
max -25
Change of elongation at break
%
max -25
max -25
max -25
max -25
Resistance in ASTM-Oil # 3
72h/ 150 °C
DIN 53 521 ASTM D 471
Change of hardness
Shore A
max -5
max -5
max -5
max -5
Change of volume
%
max +5
max +5
max +5
max +5
Resistance in ASTM-FUEL C
72h / RT
DIN 53 521 ASTM D 471
Change of hardness
Shore A
max -5
max -5
max -5
max -5
Change of volume
%
max +10
max +10
max +10
max +10
Temperature range
Maximum and minimum operating temperatures depend on the specific application criteria.
-18 °Cto +200 °C
-18 °Cto +200 °C
-18 °Cto +200 °C
-15 °Cto +200 °C
W//A
Latest information available at www.tss.trelleborg.com Edition June 2008
TRELLEBORG
SEALING SOLUTIONS
17
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pageCatalog pdf di En 2012-06-22-01