Materials / Compare
Plastic PETG vs. Titanium Compare Plastic PETG vs. Titanium strength, stiffness, weight and thermal properties.
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Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic PTFE Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Rubber Wood Aluminum Aluminum 6061-T6 Aluminum 7075-T6 Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum ADC12 Steel Steel AISI 1018 Steel AISI 1045 Steel AISI 4340 Steel A992 Iron Titanium Titanium Ti-6Al-4V Stainless Steel 304 Stainless Steel 316 Stainless Steel 303 Stainless Steel 17-4PH Brass C360 Brass C260 Copper C110 Glass Nickel Inconel 718 Magnesium AZ31B-H24 Magnesium AZ91D Zinc Zamak 3 FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Standard SLA Resin Tough 2000 SLA Resin Elastic 50A SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Concrete Brick Plywood Drywall PCB Laminate FR-4 Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Solder SAC305 Plastic PETG 3D printed (FDM) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic PTFE Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Rubber Wood Aluminum Aluminum 6061-T6 Aluminum 7075-T6 Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum ADC12 Steel Steel AISI 1018 Steel AISI 1045 Steel AISI 4340 Steel A992 Iron Titanium Titanium Ti-6Al-4V Stainless Steel 304 Stainless Steel 316 Stainless Steel 303 Stainless Steel 17-4PH Brass C360 Brass C260 Copper C110 Glass Nickel Inconel 718 Magnesium AZ31B-H24 Magnesium AZ91D Zinc Zamak 3 FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Standard SLA Resin Tough 2000 SLA Resin Elastic 50A SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Concrete Brick Plywood Drywall PCB Laminate FR-4 Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Solder SAC305 Titanium Wrought Try it on a partA bracket to run stress or thermal on, free in your browser Open in LessCAD Open in LessCAD Mechanical Yield strength 46.2 MPa source typical 885 MPa source typical, plate (>0.187 in), annealed, 0.2% offset Ultimate tensile strength 46.2 MPa source typical, peak stress (= stress at yield) 940 MPa source typical, plate, annealed Flexural strength 78.9 MPa source typical not sourced Elongation at break 7.6 % source typical 16 % source typical, in 2 in., plate annealed Young's modulus (stiffness) 1.94 GPa source typical 107–122 GPa source typical range, 20 °C Density 1,270 kg/m³ source typical 4,430 kg/m³ source nominal Strength to weight 36.4 kN·m/kg 200 kN·m/kg 5.49x higher Stiffness to weight 1.53 MN·m/kg 25.8 MN·m/kg 16.9x higher Poisson's ratio not sourced 0.342 source mean of TIMET measurements Shear modulus not sourced 42.7 GPa Bulk modulus not sourced 121 GPa Speed of sound 1,236 m/s 5,084 m/s Thermal Thermal conductivity 0.21 W/m·K source base material: Eastman Eastar Copolyester 6763 (PETG), typical 6.6 W/m·K source typical, 20 °C, mill annealed Thermal expansion 51 µm/m·K source base material: Eastman Eastar Copolyester 6763 (PETG), typical 9 µm/m·K source typical, mean 0-100 °C 100 mm part over a 50 °C swing 255 µm growth 45 µm growth 5.67x less Specific heat 1,300 J/kg·K source base material: Eastman Eastar Copolyester 6763 (PETG), DSC at 60 °C (lowest temperature listed) 580 J/kg·K source typical, 20 °C Heats up and cools (diffusivity) 0.127 mm²/s 2.57 mm²/s 20.2x faster Thermal shock resistance not sourced 3,730 W/m Melting point not sourced 1,630–1,650 °C source melting range Glass transition 77.4 °C source typical not sourced Max service temperature 76.2 °C source HDT 0.455 MPa (printed specimens) 400 °C source upper recommended use temperature 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. TIMETAL 6-4 (Ti-6Al-4V Grade 5) annealed plate typical (TIMET properties manual) + TIMET datasheet TMC-0150 physical properties
Every value links to the document that states it. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Plastic PETG is 3D printed: its properties depend on build direction and print settings; these are typical values.
Questions Is Plastic PETG stronger than Titanium? Titanium is stronger: its yield strength is 885 MPa against 46.2 MPa for Plastic PETG (19.2x).
Which is lighter, Plastic PETG or Titanium? Plastic PETG is lighter: 1,270 kg/m³ against 4,430 kg/m³ for Titanium.
Which is stiffer, Plastic PETG or Titanium? Titanium is stiffer: Young's modulus 115 GPa against 1.94 GPa for Plastic PETG, so the same part in Titanium deflects less under the same load.
Which is lighter for the same job, Plastic PETG or Titanium? For the same stiffness or strength: Titanium is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate, strong rod or tie, strong beam, strong panel or plate.
Part that must be Plastic PETG Titanium Stiff rod or tie (tension) 16.9x heavier lighter Stiff beam (bending) 2.2x heavier lighter Stiff panel or plate 12% heavier lighter Strong rod or tie 5.49x heavier lighter Strong beam 2.05x heavier lighter Strong panel or plate 25% heavier lighter
For the same stiffness or strength, mass scales with density over stiffness (or strength) raised to a power set by how the part is loaded: 1 for a rod in tension, 1/2 for a beam in bending, 1/3 for a panel (the standard material-selection indices).
Which conducts heat better, Plastic PETG or Titanium? Titanium conducts heat better: 6.6 W/m·K against 0.21 W/m·K for Plastic PETG.
Which expands less with temperature? Titanium expands less: 9 µm/m·K against 51 µm/m·K for Plastic PETG.
Among 72 materials 1k 10k 0.1 1 10 100 Density (kg/m³) Young's modulus (GPa) Plastic PLA Plastic ABS Plastic TPU Plastic Nylon Aluminum Steel Iron Steel AISI 1018 Stainless Steel 304 Stainless Steel 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Glass Steel AISI 1045 Steel AISI 4340 Steel A992 Stainless Steel 303 Stainless Steel 17-4PH Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Titanium Ti-6Al-4V Brass C260 Nickel Inconel 718 Magnesium AZ31B-H24 Zinc Zamak 3 Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Tough 2000 SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel PCB Laminate FR-4 Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum ADC12 Magnesium AZ91D Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Plastic PETG Titanium Stiffness against density 1k 10k 10 100 1k Density (kg/m³) Yield strength (MPa) Plastic PLA Plastic ABS Plastic TPU Plastic Nylon Rubber Aluminum Steel Iron Steel AISI 1018 Stainless Steel 304 Stainless Steel 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Glass Steel AISI 1045 Steel AISI 4340 Steel A992 Stainless Steel 303 Stainless Steel 17-4PH Aluminum 2024-T351 Aluminum 5052-H32 Aluminum 7050-T7451 Titanium Ti-6Al-4V Brass C260 Nickel Inconel 718 Magnesium AZ31B-H24 Zinc Zamak 3 Plastic ABS (bulk/injection) Plastic Polycarbonate Plastic POM/Acetal Plastic Nylon PA6 Plastic Nylon PA66 Plastic PEEK Plastic PTFE Plastic UHMWPE Plastic HDPE Plastic Polypropylene Plastic PMMA FDM ASA FDM Polycarbonate FDM PAHT-CF FDM HIPS SLA Resin Tough 2000 SLA Resin Elastic 50A SLS PA12 Nylon DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Brick PCB Laminate FR-4 Silicon Ceramic Alumina 96% Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum ADC12 Magnesium AZ91D Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Plastic PETG Titanium Strength against density