UHMWPE PROPERTIES

UHMW Plastic
Extremely tough abrasion resistant, low cost plastic, used for a wide range of wear applications

UHMW (ultra high molecular weight polyethylene) is an extremely tough plastic with high abrasion and wear resistance. The versatility of polyethylene has made it a popular plastic for countless industrial applications that require durability, low friction, and chemical resistance. Applications include UHMW wear strips, chain guides, and marine dock fender pads.

Density

0.95  g/cm3

Tensile
Strength at yield point at 20oC

230
kg/cm2

Tenacity
at 20o C

450
kg/cm3

Bending
E Modulus

7500
kg/cm2

Limit
bending strength

280
kg/cm

Notch
impact strength

No break

Notch
impact strength

(with sharp pointed notch)

No break

Notch
impact strength

(with pointed notch on either side)

180
cmkg/cm2

Shore
hardness D

67

Friction
coefficient

0.08

Ball
pressure hardness after 10 sec

450
kg/cm2

Ball
pressure hardness after 60 sec

400
kg/cm2

Crystalline
fusing range

135-138o
C

Shape
retention under heat action (Vicat)

74o
C

Thermal
stability (66 psi)

96o
C

Linear
expansion coefficient

2×10-4/0C

Specific
heat

0.55
kcal/kg grad

Heat
conductivity

0.35
kcal/mh grad

Degree
of deviation

ca.
1018   ohm.cm

Surface
resistance

Over
1012   ohm

Dielectric
loss factor

ca.40-4

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