Materials / Compare
Aluminum 7050-T7451 vs. Plastic HDPE Compare Aluminum 7050-T7451 vs. Plastic HDPE 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 Aluminum 7050-T7451 Wrought 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 HDPE Bulk polymer (molded or machined) 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 469 MPa source typical, longitudinal, 0.2% offset 24 MPa source typical, tensile stress at yield 23 °C, 50 mm/min ISO 527 Ultimate tensile strength 524 MPa source typical, longitudinal not sourced Elongation at break 11 % source typical, longitudinal not sourced Young's modulus (stiffness) 70.3 GPa source typical 0.9 GPa source typical, tensile modulus 23 °C ISO 527 Density 2,830 kg/m³ source nominal 950 kg/m³ source typical, ISO 1183 Strength to weight 166 kN·m/kg 6.56x higher 25.3 kN·m/kg Stiffness to weight 24.8 MN·m/kg 26.2x higher 0.947 MN·m/kg Poisson's ratio 0.33 source typical (handbook physical constant) 0.4–0.45 source base material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) Shear modulus 26.4 GPa 83.7x stiffer in shear 0.316 GPa Bulk modulus 68.9 GPa 2 GPa Speed of sound 4,984 m/s 973 m/s Thermal Thermal conductivity 157 W/m·K source typical, 20 °C 0.4–0.49 W/m·K source base material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) Thermal expansion 23.5 µm/m·K source typical, mean 20-100 °C 120 µm/m·K source base material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) 100 mm part over a 50 °C swing 118 µm growth 5.11x less 600 µm growth Specific heat 860 J/kg·K source typical, at 100 °C 2,250 J/kg·K source base material: high-density polyethylene family (INEOS Olefins & Polymers USA, Typical Engineering Properties of HDPE) Heats up and cools (diffusivity) 64.5 mm²/s 310x faster 0.208 mm²/s Thermal shock resistance 29,862 W/m 525x more resistant 56.9 W/m Melting point 524–635 °C source melting range not sourced Values for 7050-T7451 plate, Kaiser Aluminum sheet, coil & plate typical datasheet (longitudinal); Poisson from MIL-HDBK-5J LyondellBasell Hostalen 23050 B high density polyethylene, typical ISO values
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.
Questions Is Aluminum 7050-T7451 stronger than Plastic HDPE? Aluminum 7050-T7451 is stronger: its yield strength is 469 MPa against 24 MPa for Plastic HDPE (19.5x).
Which is lighter, Aluminum 7050-T7451 or Plastic HDPE? Plastic HDPE is lighter: 950 kg/m³ against 2,830 kg/m³ for Aluminum 7050-T7451.
Which is stiffer, Aluminum 7050-T7451 or Plastic HDPE? Aluminum 7050-T7451 is stiffer: Young's modulus 70.3 GPa against 0.9 GPa for Plastic HDPE, so the same part in Aluminum 7050-T7451 deflects less under the same load.
Which is lighter for the same job, Aluminum 7050-T7451 or Plastic HDPE? For the same stiffness or strength: Aluminum 7050-T7451 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 Aluminum 7050-T7451 Plastic HDPE Stiff rod or tie (tension) lighter 26.2x heavier Stiff beam (bending) lighter 2.97x heavier Stiff panel or plate lighter 43% heavier Strong rod or tie lighter 6.56x heavier Strong beam lighter 2.44x heavier Strong panel or plate lighter 48% heavier
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, Aluminum 7050-T7451 or Plastic HDPE? Aluminum 7050-T7451 conducts heat better: 157 W/m·K against 0.445 W/m·K for Plastic HDPE.
Which expands less with temperature? Aluminum 7050-T7451 expands less: 23.5 µm/m·K against 120 µm/m·K for Plastic HDPE.
Among 72 materials 1k 10k 0.1 1 10 100 Density (kg/m³) Young's modulus (GPa) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Aluminum Steel Iron Titanium 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 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 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 Aluminum 7050-T7451 Plastic HDPE Stiffness against density 1k 10k 10 100 1k Density (kg/m³) Yield strength (MPa) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Rubber Aluminum Steel Iron Titanium 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 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 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 Aluminum 7050-T7451 Plastic HDPE Strength against density