Precision Machine Shop specializing in CNC Precision Machining, Contract Manufacturing, Plastic Machining, and Custom Machined Electronics

 

ABS (Acrylonitrile-Butadiene-Styrene) Specifications

TECHNICAL DESCRIPTION

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.

( see also Absylux® Static-Control ABS Specifications )
GENERAL PROPERTIES
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).
TYPICAL APPLICATIONS
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
PHYSICAL
D792 Density (lb/in³)
(g/cm³)
0.038
1.04
D570 Water Absorption, 24 hrs (%) -
MECHANICAL
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) -
D785 Hardness, Rockwell R105
D256 IZOD Notched Impact (ft-lb/in) 7.0
THERMAL
D696 Coefficient of Linear Thermal Expansion
(x 10 -5 in./in./°F)
5.3
D648 Heat Deflection Temp (°F / °C)
at 264 psi

215 / 102
D3418 Melting Temp (°F / °C) - / -
- Max Operating Temp (°F / °C) 140 / 60
C177 Thermal Conductivity
(BTU-in/ft²-hr-°F)
(x 10 -4 cal/cm-sec-°C)

-
-
UL94 Flammability Rating H-B
ELECTRICAL
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 10 15

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.