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SAE-AISI 1065 Steel vs. Nickel 718

SAE-AISI 1065 steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1065 steel and the bottom bar is nickel 718.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 14
12 to 50
Fatigue Strength, MPa 270 to 340
460 to 760
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34 to 51
34 to 64
Shear Modulus, GPa 72
75
Shear Strength, MPa 430 to 470
660 to 950
Tensile Strength: Ultimate (UTS), MPa 710 to 780
930 to 1530
Tensile Strength: Yield (Proof), MPa 430 to 550
510 to 1330

Thermal Properties

Latent Heat of Fusion, J/g 250
310
Maximum Temperature: Mechanical, °C 400
980
Melting Completion (Liquidus), °C 1460
1340
Melting Onset (Solidus), °C 1420
1260
Specific Heat Capacity, J/kg-K 470
450
Thermal Conductivity, W/m-K 51
11
Thermal Expansion, µm/m-K 11
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
1.4
Electrical Conductivity: Equal Weight (Specific), % IACS 12
1.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
75
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 1.4
13
Embodied Energy, MJ/kg 19
190
Embodied Water, L/kg 46
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 90
140 to 390
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 820
660 to 4560
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
23
Strength to Weight: Axial, points 25 to 28
31 to 51
Strength to Weight: Bending, points 23 to 24
25 to 35
Thermal Diffusivity, mm2/s 14
3.0
Thermal Shock Resistance, points 25 to 27
27 to 44

Alloy Composition

Aluminum (Al), % 0
0.2 to 0.8
Boron (B), % 0
0 to 0.0060
Carbon (C), % 0.6 to 0.7
0 to 0.080
Chromium (Cr), % 0
17 to 21
Cobalt (Co), % 0
0 to 1.0
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 98.3 to 98.8
11.1 to 24.6
Manganese (Mn), % 0.6 to 0.9
0 to 0.35
Molybdenum (Mo), % 0
2.8 to 3.3
Nickel (Ni), % 0
50 to 55
Niobium (Nb), % 0
4.8 to 5.5
Phosphorus (P), % 0 to 0.040
0 to 0.015
Silicon (Si), % 0
0 to 0.35
Sulfur (S), % 0 to 0.050
0 to 0.015
Titanium (Ti), % 0
0.65 to 1.2