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Magnesium AZ91D vs. Titanium Compare Magnesium AZ91D vs. Titanium strength, stiffness, weight and thermal properties.
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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 Magnesium AZ91D stronger than Titanium? Titanium is stronger: its yield strength is 885 MPa against 150 MPa for Magnesium AZ91D (5.9x).
Which is lighter, Magnesium AZ91D or Titanium? Magnesium AZ91D is lighter: 1,810 kg/m³ against 4,430 kg/m³ for Titanium.
Which is stiffer, Magnesium AZ91D or Titanium? Titanium is stiffer: Young's modulus 115 GPa against 45 GPa for Magnesium AZ91D, so the same part in Titanium deflects less under the same load.
Which is lighter for the same job, Magnesium AZ91D or Titanium? For the same stiffness or strength: Magnesium AZ91D is lighter for a stiff beam (bending), stiff panel or plate; Titanium is lighter for a stiff rod or tie (tension), strong rod or tie, strong beam.
Part that must be Magnesium AZ91D Titanium Stiff rod or tie (tension) 4% heavier lighter Stiff beam (bending) lighter 1.53x heavier Stiff panel or plate lighter 1.79x heavier Strong rod or tie 2.41x heavier lighter Strong beam 33% heavier lighter Strong panel or plate about equal about equal
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, Magnesium AZ91D or Titanium? Magnesium AZ91D conducts heat better: 72 W/m·K against 6.6 W/m·K for Titanium.
Which expands less with temperature? Titanium expands less: 9 µm/m·K against 25 µm/m·K for Magnesium AZ91D.
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 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 Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Magnesium AZ91D Titanium 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 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 Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Magnesium AZ91D Titanium Strength against density