ABS (Acrylonitrile-Butadiene-Styrene) is a copolymer composed of two copolymers and is one of the most common polymer materials. Styrene and Acrylonitrile form a linear copolymer (SAN) that serves as a matrix. Butadiene and Styrene also form a linear copolymer (BS rubber) which acts as the filler material. The combination of the two copolymers gives ABS an excellent combination of strength, rigidity, and toughness.
ABS has good chemical and stress-cracking resistance to inorganic salt solutions, alkalies, mineral acids (except strong oxidizing acids), and some mineral, vegetable, and animal oils. ABS is easily machined to close tolerances, is tough, dimensionally stable, and may also be thermoformed. Petroleum-based oils, solvents, and paints SHOULD NOT BE USED, as they will cause the material to craze. ABS is also one of the few non-metallic materials which can be readily electroplated (after an electroless plating surface has been applied using a selective etching process).
ABS is an economical, general purpose material used in a wide variety of applications, including: • aircraft interior trim • cassette holders • business machine housings • tote bins and trays • luggage • model building • water purification equipment • automotive parts • laboratory equipment • household fixtures
TYPICAL PROPERTIES of ABS
|ASTM or UL test||Property||ABS|
|D570||Water Absorption, 24 hrs (%)||-|
|D638||Tensile Strength (psi)||6,500|
|D638||Tensile Modulus (psi)||340,000|
|D638||Tensile Elongation at Break (%)||25|
|D790||Flexural Strength (psi)||11,000|
|D790||Flexural Modulus (psi)||320,000|
|D695||Compressive Strength (psi)||-|
|D695||Compressive Modulus (psi)||-|
|D256||IZOD Notched Impact (ft-lb/in)||7.0|
|D696||Coefficient of Linear Thermal Expansion|
(x 10-5 in./in./°F)
|D648||Heat Deflection Temp (°F / °C)|
at 264 psi
215 / 102
|D3418||Melting Temp (°F / °C)||- / -|
|-||Max Operating Temp (°F / °C)||140 / 60|
(x 10-4 cal/cm-sec-°C)
|D149||Dielectric Strength (V/mil) short time, 1/8" thick||-|
|D150||Dielectric Constant at 60 Hz||-|
|D150||Dissipation Factor at 60 Hz||-|
|D257||Volume Resistivity (ohm-cm)at 50% RH||1015|
NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. Contact us for manufacturers' complete material property datasheets.
All values at 73°F (23°C) unless otherwise noted.
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