Properties of Acrylic sheet

Mechanical Properties:

Typical Property

Test Method

Units

Value

Specific Gravity

ASTM D-792

 

1.19

Tensile Strength

ASTM-638

kg/cm2

690

Elongation, Rupture

ASTM-638

%

4-6

Modulus of Elasticity

ASTM-638

kg/cm2

28,000

Flexural Strength

ASTM D-790

kg/cm2

1220

Compressive Strength(Yield)

ASTM D-695

kg/cm2

1170

Impact Strength

ASTM D-256

1b/inch

6.48

Izod (Notched)

ASTM D-256

ft-lbs/inch

0.4

Rockwell Hardness

ASTM D-785

 

M-97

Optical Properties:

Typical Property

Test Method

Units

Value

Refractive Index

ASTM D-542

 

1.49

Light Transmission

ASTM D-1003

%

92


Thermal Properties:

Typical Property

Test Method

Value

Forming Temperature

 

Approx 150 (300)

Deflection Temperature   Under load, 264 psi

ASTMD-648

95

Internal Shrinkage

 

2.0-3.0%

Vicat Softening Point

ASTM S-1525

112(223)

Max Recommended Continuous Service Temperature

 

70(160)

Coefficient of Linear Thermal Ecpansion(-18 to 38 Ave)

ASTM D-696

0.000054cm / cm /

Flammability, Buring Rate (0.125” thickness)

D-635

25 mm / min

Self Ignition Temperature

D-1929

443

Specific Heat @77

 

0.35 (BTU/lb )