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C71500 Copper-nickel vs. SAE-AISI 8645 Steel

C71500 copper-nickel belongs to the copper alloys classification, while SAE-AISI 8645 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is SAE-AISI 8645 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
190
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
73
Tensile Strength: Ultimate (UTS), MPa 380 to 620
600 to 670

Thermal Properties

Latent Heat of Fusion, J/g 230
250
Maximum Temperature: Mechanical, °C 260
410
Melting Completion (Liquidus), °C 1240
1460
Melting Onset (Solidus), °C 1170
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 28
39
Thermal Expansion, µm/m-K 16
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 41
2.6
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.1
1.5
Embodied Energy, MJ/kg 74
20
Embodied Water, L/kg 280
50

Common Calculations

Stiffness to Weight: Axial, points 8.6
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 19
21 to 24
Strength to Weight: Bending, points 13 to 18
20 to 22
Thermal Diffusivity, mm2/s 7.7
10
Thermal Shock Resistance, points 12 to 20
18 to 20

Alloy Composition

Carbon (C), % 0
0.43 to 0.48
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 63.5 to 70.6
0
Iron (Fe), % 0.4 to 1.0
96.5 to 97.7
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0.75 to 1.0
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 29 to 33
0.4 to 0.7
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0