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C71500 Copper-nickel vs. ACI-ASTM CT15C Steel

C71500 copper-nickel belongs to the copper alloys classification, while ACI-ASTM CT15C steel belongs to the iron alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 24 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is ACI-ASTM CT15C steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
76
Tensile Strength: Ultimate (UTS), MPa 380 to 620
500

Thermal Properties

Latent Heat of Fusion, J/g 230
310
Maximum Temperature: Mechanical, °C 260
1080
Melting Completion (Liquidus), °C 1240
1410
Melting Onset (Solidus), °C 1170
1360
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 28
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 41
36
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 5.1
6.1
Embodied Energy, MJ/kg 74
88
Embodied Water, L/kg 280
190

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 19
17
Strength to Weight: Bending, points 13 to 18
17
Thermal Diffusivity, mm2/s 7.7
3.2
Thermal Shock Resistance, points 12 to 20
12

Alloy Composition

Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
19 to 21
Copper (Cu), % 63.5 to 70.6
0
Iron (Fe), % 0.4 to 1.0
40.3 to 49.2
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0.15 to 1.5
Nickel (Ni), % 29 to 33
31 to 34
Niobium (Nb), % 0
0.5 to 1.5
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.15 to 1.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0