High Impact ABS
High impact ABS is a grade of ABS. It has the lowest strength compared to the other variants of ABS. The graph bars on the material properties cards below compare high impact ABS to: styrenic plastics (top), all thermoplastics (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Elastic (Young's, Tensile) Modulus
2.0 GPa 0.29 x 106 psi
Elongation at Break
13 %
Flexural Modulus
2.3 GPa 0.34 x 106 psi
Flexural Strength
72 MPa 10 x 103 psi
Impact Strength: Notched Izod
370 J/m 7.0 ft-lb/in
Rockwell R Hardness
100
Tensile Strength: Ultimate (UTS)
37 MPa 5.4 x 103 psi
Thermal Properties
Heat Deflection Temperature At 1.82 MPa (264 psi)
91 °C 200 °F
Heat Deflection Temperature At 455 kPa (66 psi)
99 °C 210 °F
Thermal Expansion
95 µm/m-K
Other Material Properties
Density
1.0 g/cm3 64 lb/ft3
Dielectric Constant (Relative Permittivity) At 1 Hz
3.2
Dielectric Strength (Breakdown Potential)
15 kV/mm 0.57 V/mil
Common Calculations
Stiffness to Weight: Axial
1.1 points
Stiffness to Weight: Bending
41 points
Strength to Weight: Axial
10 points
Strength to Weight: Bending
24 points
Thermal Shock Resistance
14 points
Followup Questions
Further Reading
SPI Plastics Engineering Handbook of the Society of the Plastics Industry, Inc., 5th ed., Michael L. Berins (editor), 2000
Modern Plastics Handbook, Charles A. Harper (editor), 1999
Plastics Materials, 7th ed., J. A. Brydson, 1999