PET

Semi-crystalline polyester; drink bottles and textile fiber, crystallinity set by processing.

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PropertyValueSourceMethodConditionsNote
Density1.37 g/cm³Callister & Rethwisch, Materials Science and Engineering, 10th ed.ASTM D79223 °C, dry
Young's modulus E2.9 GPaCallister & Rethwisch, Materials Science and Engineering, 10th ed.ASTM D63823 °C, dry
Tensile strength60 MPaCallister & Rethwisch, Materials Science and Engineering, 10th ed.ASTM D63823 °C, dry
Glass transition Tg76 °CCallister & Rethwisch, Materials Science and Engineering, 10th ed.DSC23 °C, dry
Melting point Tm255 °CCallister & Rethwisch, Materials Science and Engineering, 10th ed.DSC23 °C, dry
  • Callister & Rethwisch, Materials Science and Engineering, 10th ed.

Typical room-temperature values for learning and preliminary design; grades vary. Always confirm against the supplier datasheet before design work. Data policy: docs/DATA-SOURCES.md in the repository.