Physical Properties for Extruded Acrylic Sheet

Extruded Acrylic Sheet

Properties

ASTM Method

Typical Value (0.250” thickness)

Mechanical

Specific Gravity

Tensile Strength

     Elongation, Rupture

     Modulus of Elasticity

Flexural Strength

     Modulus of Elasticity

Compressive Strength (yield)

Impact Strength

      Izod Milled Notch

Rockwell Hardness

Barcol Hardness

 

D 792

D 638

 

 

D 790

 

D 695

D 256

 

D 785

D 2583

 

1.19

10,000 psi (69 MPa)

4.5%

4000,000 psi (2,800 MPa)

17,000 psi (117 MPa)

480,000 psi (3,300 MPa)

17,000 psi (117 MPa)

0.4 ft. lbs/in. of notch

(21.6 J/m of notch)

M-93

48

Optical

Refractive Index

Light Transmission, Total

 

D 542

D 1003

 

1.49

92%

Thermal

Forming temperature

Deflection Temperature

     Under load, 264 psi

Vicat Softening Point

Maximum Recommended Continuous

      Service Temperature

Coefficient of Linear Thermal      

      Expansion

Coefficient of Thermal Conductivity

Flammability, Burning Rate

     (0.125” thickness)

Self Ignition Temperature

Specific Heat @ 77° F

Smoke Density Rating

 

-

D 648

 

D 1525

-

 

D 696

 

Cenco-Fitch

D 635

 

D1929

 

D 2843

 

Approx. 300° F (149° C)

195° F (91°C)

 

220° F (105°F)

160° F(c) (71°C)

 

0.000040 in/in - °F

(0.000072 m/m - °C)

1.3 Btu(hr) (sq.ft) (°F/in) (0.19 w/m K)

1.0 in/min

(25 mm/min)

850°F(455°C)

0.35 BTU/(lb.) (F) (1470J/Kg K)

4.8%

Electrical

Dielectric Strength

     Short Time (0.125”)

Dielectric Constant

     60 Hertz

     1,000 Hertz

     100,000 Hertz

Dissipation Factor

     60 Hertz

     1,000 Hertz

     100,000 Hertz

Volume Resistivity

Surface Resistivity

 

D 149

 

D 150

 

 

 

D 150

 

 

 

D 257

D 257

 

430volt/mil (17KV/mm)

 

 

3.6

3.3

2.8

 

0.06

0.04

0.02

1016Ohm-cm

1015Ohms

Water Absorption

24 hrs @ 73° F

 

D 570

 

0.2%

Odor

-

None

Taste

-

None

Notes: (a) Typical values; should not be used for specification purposes.
           (b) Values shown are for 0.250” thickness. Some values will change with thickness or pigmentation
           (c)It is recommended that temperatures not exceed 160°F for continuous service, or 190° F for short term use.

Article Title:
Physical Properties for Extruded Acrylic Sheet
Article Summary:
Physical, Mechanical, Thermal, and Electrical Typical Properties.
Article Date:
1/14/2009
Article ID:
533
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