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C71580 Copper-nickel vs. SAE-AISI 4320 Steel

C71580 copper-nickel belongs to the copper alloys classification, while SAE-AISI 4320 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is C71580 copper-nickel and the bottom bar is SAE-AISI 4320 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 75
160 to 240
Elastic (Young's, Tensile) Modulus, GPa 140
190
Elongation at Break, % 40
21 to 29
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 51
73
Shear Strength, MPa 230
370 to 500
Tensile Strength: Ultimate (UTS), MPa 330
570 to 790
Tensile Strength: Yield (Proof), MPa 110
430 to 460

Thermal Properties

Latent Heat of Fusion, J/g 230
250
Maximum Temperature: Mechanical, °C 260
420
Melting Completion (Liquidus), °C 1180
1460
Melting Onset (Solidus), °C 1120
1420
Specific Heat Capacity, J/kg-K 400
470
Thermal Conductivity, W/m-K 39
46
Thermal Expansion, µm/m-K 15
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 4.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 4.7
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 41
3.4
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 5.1
1.7
Embodied Energy, MJ/kg 74
22
Embodied Water, L/kg 280
52

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
140 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 47
480 to 560
Stiffness to Weight: Axial, points 8.5
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 10
20 to 28
Strength to Weight: Bending, points 12
19 to 24
Thermal Diffusivity, mm2/s 11
13
Thermal Shock Resistance, points 11
19 to 27

Alloy Composition

Carbon (C), % 0 to 0.070
0.17 to 0.22
Chromium (Cr), % 0
0.4 to 0.6
Copper (Cu), % 65.5 to 71
0
Iron (Fe), % 0 to 0.5
95.8 to 97
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 0.3
0.45 to 0.65
Molybdenum (Mo), % 0
0.2 to 0.3
Nickel (Ni), % 29 to 33
1.7 to 2.0
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 0.050
0
Residuals, % 0 to 0.5
0