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C72700 Copper-nickel vs. SAE-AISI 1018 Steel

C72700 copper-nickel belongs to the copper alloys classification, while SAE-AISI 1018 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is SAE-AISI 1018 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 4.0 to 36
17 to 27
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 310 to 620
280 to 300
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
430 to 480
Tensile Strength: Yield (Proof), MPa 580 to 1060
240 to 400

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 1100
1460
Melting Onset (Solidus), °C 930
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 54
52
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
1.8
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 4.0
1.4
Embodied Energy, MJ/kg 62
18
Embodied Water, L/kg 350
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
75 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
150 to 430
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 14 to 34
15 to 17
Strength to Weight: Bending, points 15 to 26
16 to 17
Thermal Diffusivity, mm2/s 16
14
Thermal Shock Resistance, points 16 to 38
14 to 15

Alloy Composition

Carbon (C), % 0
0.15 to 0.2
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
98.8 to 99.25
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0.6 to 0.9
Nickel (Ni), % 8.5 to 9.5
0
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0