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Most
physical and chemical properties are impacted
when an elastomeric
compound meets high or low temperatures,
especially if the exposure is for a prolonged
period. Affected properties can include hardness, tensile
strength, modulus, elongation, compression
set, and volume.
Because O-rings often face extreme heat or extreme
cold (and in some cases, both extremes), there
are important thermal properties you must consider.
These include high and low temperature effects, coefficient
of thermal expansion, and the Gough-Joule
effect.
HIGH
TEMPERATURE EFFECTS
LOW TEMPERATURE
EFFECTS
COEFFICIENT OF
THERMAL EXPANSION
GOUGH-JOULE EFFECT
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“Because
O-rings often face extreme heat or extreme cold, there are important thermal properties
you must consider.”
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