Physical Properties for UHMW Bar, Rod, & Tube

UHMW Bar, Rod, & Tube
Gar-Dur ® UHMW
This chart shows the physical properties of Gar-Dur®. It should be noted that Gar-Dur® UHMW has the highest
 impact resistance of all thermal plastics. Gar-Dur® has outstanding low temperature impact strength plus high
energy absorption. As an example of toughness, Gar-Dur® UHMW is used in mallet faces and hammer heads.

Property

Units

ASTM Test Procedure

Result

Density at 23°C.(73°F)

g/cc.

D 792

0.941

Hardness, Rockwell “R”

R

D 785

64

Ultimate Tensile Strength at 2”/min.

psi

D 638

6,400

Tensile Yield Strength at 2”/min.

psi

D 638

3,400

Tensile Yield Elongation at 2”/min.

%

D 638

14

Elongation at Break at 2”/min.

%

D 638

350

1% Secant Modulus

psi

D 790B

175,000

Izod Impact at 23°C (73°F)

f.p.i.n.

D 256 A

Non-break

Izod Impact at -40°C.

f.p.i.n.

D 256 A

Non-break

Durometer “D” Hardness

D/15 sec.

D 2240

67

Deflection Temp. at 66 psi

°C

D 648

80

Deflection Temp. at 264 psi

°C

D 648

47

Vicat Softening point

°C

D 1525 B

136

Coefficient of Linear Thermal Expansion

in/in/°F

D 696

9.1 X 10-5

Notes:
1 – Crystalline melting point 130-131°C. = (267°F)

2 – Stress Crack (ASTM D 1693 modified) = None

This material will not absorb moisture.

Compression Deformation

This chart illustrates the compression strength of Gar-Dur® UHMW for engineering purposes.

 

Compressive Stress

psi

Compressive values

1 min. after removal of stress

%

Permanent deformation 24 hours after removal of stress

%

20°C (68°F)

282

570

850

1,140

1,420

1,700

0.9

1.8

2.7

3.6

4.5

5.4

0.6

1.2

1.8

2.4

2.9

3.5

50° C (122°F)

282

570

850

1,140

1,420

1,700

1.3

2.7

4.1

5.5

6.9

8.2

0.8

1.5

2.3

3.1

3.9

4.7

80° C (176°F)

282

570

850

1,140

1,420

1,700

1.6

3.2

4.8

6.4

8.1

9.7

1.1

2.3

3.5

4.6

5.8

6.9

 Property values reflect typical average values and are provided as a general guide only, not for design purposes.

Article Title:
Physical Properties for UHMW Bar, Rod, & Tube
Article Summary:
Physical, Mechanical, Electrical and Thermal Typical Properties.
Article Date:
1/27/2009
Article ID:
547
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