thermal property

Coefficient of Thermal Expansion of Plastics

CTE governs dimensional stability across temperature. Assemblies mixing plastic and metal need matched CTE or clever design to avoid warping.

Unit: ×10⁻⁶/KMaterials ranked: 3Order: lowest first

#	Material	Category	Coefficient of Thermal Expansion (×10⁻⁶/K)
1	Polycarbonate Polycarbonate	Engineering Thermoplastic	65 – 70 × 10⁻⁶ /K
2	PETG Polyethylene Terephthalate Glycol	Commodity Thermoplastic	68 × 10⁻⁶ /K
3	ABS Acrylonitrile Butadiene Styrene	Engineering Thermoplastic	80 – 100 × 10⁻⁶ /K

Other properties