Mechanical Properties

Mechanical properties — stiffness, hardness, toughness, impact strength and the ability to support loads — are important in most plastic applications. Mechanical properties data is used regularly to pre-select materials, estimate part performance and predict deformations and stresses from applied loads.

Examples of these and other calculations showing the use of this data can be found in the Bayer Engineering Thermoplastics: Part and Mold Design Guide and in the Mechanical Properties chapter of the Bayer Material Selection Guide (registration required for access to both publications).

Test results found in most technical data sheets have been derived from laboratory tests and may not directly apply to your specific part or application. This data should be used for comparison purposes only, because real world application factors such as environment, temperature and loading rate also affect material performance. 

Bayer MaterialScience’s material property values and limits are given at face value. No safety factors or margins for error have been incorporated into this data. Use these data conservatively with appropriate safety margins to account for:

• differences between testing and end-use conditions
• material and processing variability
• unforeseen environmental or loading stresses

• Introduction
• Mechanical Properties
  • Stress-Strain Curve
  • Creep Curve
  • Fatigue
  • Impact Strength
• Thermal Properties
• Environmental Considerations
• Design
• Assembly
• Machining
• Finishing