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C71500 Copper-nickel vs. R30556 Alloy

C71500 copper-nickel belongs to the copper alloys classification, while R30556 alloy belongs to the iron alloys. They have a modest 22% 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 R30556 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
210
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
81
Tensile Strength: Ultimate (UTS), MPa 380 to 620
780

Thermal Properties

Latent Heat of Fusion, J/g 230
300
Maximum Temperature: Mechanical, °C 260
1100
Melting Completion (Liquidus), °C 1240
1420
Melting Onset (Solidus), °C 1170
1330
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 28
11
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.6
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 41
70
Density, g/cm3 8.9
8.4
Embodied Carbon, kg CO2/kg material 5.1
8.7
Embodied Energy, MJ/kg 74
130
Embodied Water, L/kg 280
300

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
23
Strength to Weight: Axial, points 12 to 19
26
Strength to Weight: Bending, points 13 to 18
22
Thermal Diffusivity, mm2/s 7.7
2.9
Thermal Shock Resistance, points 12 to 20
18

Alloy Composition

Aluminum (Al), % 0
0.1 to 0.5
Boron (B), % 0
0 to 0.020
Carbon (C), % 0
0.050 to 0.15
Chromium (Cr), % 0
21 to 23
Cobalt (Co), % 0
16 to 21
Copper (Cu), % 63.5 to 70.6
0
Iron (Fe), % 0.4 to 1.0
20.4 to 38.2
Lanthanum (La), % 0
0.0050 to 0.1
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0.5 to 2.0
Molybdenum (Mo), % 0
2.5 to 4.0
Nickel (Ni), % 29 to 33
19 to 22.5
Niobium (Nb), % 0
0 to 0.3
Nitrogen (N), % 0
0.1 to 0.3
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0.2 to 0.8
Sulfur (S), % 0
0 to 0.015
Tantalum (Ta), % 0
0.3 to 1.3
Tungsten (W), % 0
2.0 to 3.5
Zinc (Zn), % 0 to 1.0
0.0010 to 0.1
Residuals, % 0 to 0.5
0