Materials / Compare
Nickel Inconel 718 vs. Steel AISI 1045 Compare Nickel Inconel 718 vs. Steel AISI 1045 strength, stiffness, weight and thermal properties.
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 3003-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 Copper C10100 Copper C12200 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 PCB Board FR-4, 2 copper planes Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Solder SAC305 Nickel Inconel 718 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 3003-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 Copper C10100 Copper C12200 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 PCB Board FR-4, 2 copper planes Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Solder SAC305 Steel AISI 1045 Wrought Mechanical Nickel Inconel 718 Steel AISI 1045 Yield strength 1,207 MPa 2.27x stronger producer-stated 531 MPa Ultimate tensile strength 1,389 MPa 2.22x stronger producer-stated 627 MPa Elongation at break 20 % 1.67x more ductile in 2 in 12 % Young's modulus (stiffness) 200 GPa 210 GPa Density 8,221 kg/m³ 7,800 kg/m³ Strength to weight 147 kN·m/kg 2.16x higher 68.1 kN·m/kg Stiffness to weight 24.3 MN·m/kg 26.9 MN·m/kg 11% higher Poisson's ratio 0.294 0.3 Shear modulus 77.3 GPa 80.8 GPa 5% stiffer in shear Bulk modulus 162 GPa 175 GPa 8% higher Speed of sound 4,932 m/s 5,189 m/s 5% faster
1k 10k 0.1 1 10 100 Density (kg/m³) Young's modulus (GPa) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Wood Aluminum Steel Iron Titanium Steel AISI 1018 Stainless Steel 304 Stainless Steel 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Copper C10100 Copper C12200 Glass 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 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 Standard 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 Concrete PCB Laminate FR-4 Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum 3003-O Aluminum ADC12 Magnesium AZ91D Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Nickel Inconel 718 Steel AISI 1045 Stiffness against densityHigher and further left: stiffer for its weight 1k 10k 10 100 1k Density (kg/m³) Yield strength (MPa) Plastic PLA Plastic PETG Plastic ABS Plastic TPU Plastic Nylon Rubber Wood Aluminum Steel Iron Titanium Steel AISI 1018 Stainless Steel 304 Stainless Steel 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Copper C10100 Copper C12200 Glass 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 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 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 Brick PCB Laminate FR-4 Silicon Ceramic Alumina 96% Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum 3003-O Aluminum ADC12 Magnesium AZ91D Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Nickel Inconel 718 Steel AISI 1045 Strength against densityHigher and further left: stronger for its weight
Thermal Nickel Inconel 718 Steel AISI 1045 Thermal conductivity 11.4 W/m·K 40–45 W/m·K Thermal expansion 13.2 µm/m·K 12 µm/m·K 100 mm part over a 50 °C swing 66 µm growth 60 µm growth 10% less Specific heat 435 J/kg·K 460–480 J/kg·K Heats up and cools (diffusivity) 3.19 mm²/s 11.6 mm²/s 3.64x faster Thermal shock resistance 3,680 W/m 6,269 W/m 1.7x more resistant Melting point melting range 1,260–1,336 °C not sourced Max service temperature 704 °C not sourced
1k 10k 0.1 1 10 100 Density (kg/m³) Thermal conductivity (W/m·K) Plastic PLA Plastic PETG Plastic ABS Plastic Nylon Rubber Wood Aluminum Steel Iron Titanium Steel AISI 1018 Stainless Steel 304 Stainless Steel 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Copper C10100 Copper C12200 Glass 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 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 HIPS SLA Resin Standard DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Concrete Brick PCB Laminate FR-4 Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum 3003-O Aluminum ADC12 Magnesium AZ91D Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Nickel Inconel 718 Steel AISI 1045 Thermal conductivity against densityHigher and further left: spreads more heat for its weight 0.1 1 10 100 10 100 Thermal conductivity (W/m·K) Thermal expansion (µm/m·K) Plastic PETG Plastic ABS Plastic Nylon Wood Aluminum Steel Iron Titanium Steel AISI 1018 Stainless Steel 304 Stainless Steel 316 Aluminum 6061-T6 Aluminum 7075-T6 Brass C360 Copper C110 Copper C10100 Copper C12200 Glass 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 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 HIPS SLA Resin Standard DMLS AlSi10Mg Aluminum DMLS Ti-6Al-4V ELI Titanium DMLS 316L Stainless Steel DMLS 17-4PH Stainless Steel Concrete Brick Plywood PCB Laminate FR-4 Silicon Ceramic Alumina 96% Ceramic Aluminum Nitride Aluminum A380 Aluminum 6063-T6 Aluminum 1100-O Aluminum 3003-O Aluminum ADC12 Magnesium AZ91D Solder SAC305 Plastic PBT GF30 Plastic PPS GF40 Plastic LCP GF30 Nickel Inconel 718 Steel AISI 1045 Thermal expansion against thermal conductivityLower and further right: warps less when heated
Sources 3 documents: Special Metals, Niagara LaSalle, Ovako
Nickel Inconel 718 INCONEL alloy 718, standard grade, 1750 °F/1 hr anneal + 1325 °F/8 hr F.C. to 1150 °F aged; Special Metals bulletin SMC-045 typical values
Steel AISI 1045 AISI 1045 cold drawn bar (Niagara LaSalle) for mechanical; Ovako C45 (lists 'SAE 1045' as a similar designation) for physical constants 1 INCONEL alloy 718 (SMC-045) Special Metals archived copy Nickel Inconel 718 · Yield strength: typical, 1.0 in. hot-rolled bar, 0.2% offsetNickel Inconel 718 · Ultimate tensile strength: typical, 1.0 in. barNickel Inconel 718 · Elongation at break: typical, 1.0 in. barNickel Inconel 718 · Young's modulus (stiffness): typical, 21 °C, annealed + agedNickel Inconel 718 · Density: nominal, annealed and agedNickel Inconel 718 · Poisson's ratio: typical, 21 °C, annealed + agedNickel Inconel 718 · Thermal conductivity: typical, 21 °C, annealed + aged (calculated from resistivity per footnote a)Nickel Inconel 718 · Thermal expansion: typical, mean 21-93 °C, annealed + agedNickel Inconel 718 · Specific heat: typical, 21 °CNickel Inconel 718 · Melting point: melting rangeNickel Inconel 718 · Max service temperature: upper use temperature stated by producer2 1045 Properties Niagara LaSalle archived copy Steel AISI 1045 · Yield strength: producer-stated, cold drawnSteel AISI 1045 · Ultimate tensile strength: producer-stated, cold drawnSteel AISI 1045 · Elongation at break: in 2 in (50.8 mm)3 C45 Steel Grade Ovako Steel AISI 1045 · Young's modulus (stiffness): typicalSteel AISI 1045 · Density: typicalSteel AISI 1045 · Poisson's ratio: typicalSteel AISI 1045 · Thermal conductivity: typical range, ambientSteel AISI 1045 · Thermal expansion: typical, mean 20-300 °CSteel AISI 1045 · Specific heat: typical range, 50/100 °C
Each number points to the document that states it, with the exact basis. Values without a number are computed from the sourced ones. "Not sourced" means no citable source states it (or only a specification minimum); figures computed from it are left out too.
Questions Mechanical Is Nickel Inconel 718 stronger than Steel AISI 1045? Nickel Inconel 718 is stronger: its yield strength is 1,207 MPa against 531 MPa for Steel AISI 1045 (2.27x).
Which is lighter, Nickel Inconel 718 or Steel AISI 1045? Steel AISI 1045 is lighter: 7,800 kg/m³ against 8,221 kg/m³ for Nickel Inconel 718.
Which is stiffer, Nickel Inconel 718 or Steel AISI 1045? Steel AISI 1045 is stiffer: Young's modulus 210 GPa against 200 GPa for Nickel Inconel 718, so the same part in Steel AISI 1045 deflects less under the same load.
Which is lighter for the same job, Nickel Inconel 718 or Steel AISI 1045? For the same stiffness or strength: Nickel Inconel 718 is lighter for a strong rod or tie, strong beam, strong panel or plate; Steel AISI 1045 is lighter for a stiff rod or tie (tension), stiff beam (bending), stiff panel or plate.
Part that must be Nickel Inconel 718 Steel AISI 1045 Stiff rod or tie (tension) 11% heavier lighter Stiff beam (bending) 8% heavier lighter Stiff panel or plate 7% heavier lighter Strong rod or tie lighter 2.16x heavier Strong beam lighter 1.64x heavier Strong panel or plate lighter 43% 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 is more ductile, Nickel Inconel 718 or Steel AISI 1045? Nickel Inconel 718 stretches further before it breaks: 20% elongation at break against 12% for Steel AISI 1045.
Thermal Which conducts heat better, Nickel Inconel 718 or Steel AISI 1045? Steel AISI 1045 conducts heat better: 42.5 W/m·K against 11.4 W/m·K for Nickel Inconel 718.
Which expands less with temperature? Steel AISI 1045 expands less: 12 µm/m·K against 13.2 µm/m·K for Nickel Inconel 718.