Plastic PETG

Plastic PETG strength, stiffness, density and thermal properties, with their source.

A bracket in Plastic PETG, 3D-printed (layer lines) finish.

Mechanical
Process	3D printed (FDM)
Yield strength	46.2MPasourcetypical
Ultimate tensile strength	46.2MPasourcetypical, peak stress (= stress at yield)
Flexural strength	78.9MPasourcetypical
Elongation at break	7.6%sourcetypical
Young's modulus (stiffness)	1.94GPasourcetypical
Density	1,270kg/m³sourcetypical
Strength to weight	36.4kN·m/kg
Stiffness to weight	1.53MN·m/kg
Poisson's ratio	not sourced
Shear modulus	not sourced
Bulk modulus	not sourced
Speed of sound	1,236m/s
Thermal
Thermal conductivity	0.21W/m·Ksourcebase material: Eastman Eastar Copolyester 6763 (PETG), typical
Thermal expansion	51µm/m·Ksourcebase material: Eastman Eastar Copolyester 6763 (PETG), typical
100 mm part over a 50 °C swing	255µm growth
Specific heat	1,300J/kg·Ksourcebase material: Eastman Eastar Copolyester 6763 (PETG), DSC at 60 °C (lowest temperature listed)
Heats up and cools (diffusivity)	0.127mm²/s
Thermal shock resistance	not sourced
Glass transition	77.4°Csourcetypical
Max service temperature	76.2°CsourceHDT 0.455 MPa (printed specimens)
Values for	Ultimaker PETG, 3D-printed specimens, XY (flat); Ultimaker S5 Pro, engineering intent profile, 0.15 mm layer height, AA 0.4 print core, 100% infill, Cura 4.9, printed one-at-a-time, conditioned >=24 h at room temperature. TDS v1.00, April 29, 2022.

Plastic PETG is 3D printed: its properties depend on build direction and print settings; these are typical values.

Among 59 materials

Stiffness against density

Strength against density