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C72700 Copper-nickel vs. ASTM Grade LC4 Steel

C72700 copper-nickel belongs to the copper alloys classification, while ASTM grade LC4 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C72700 copper-nickel and the bottom bar is ASTM grade LC4 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 4.0 to 36
27
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
570
Tensile Strength: Yield (Proof), MPa 580 to 1060
310

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
410
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
49
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 11
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
4.6
Density, g/cm3 8.8
7.9
Embodied Carbon, kg CO2/kg material 4.0
1.8
Embodied Energy, MJ/kg 62
24
Embodied Water, L/kg 350
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
130
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
260
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 14 to 34
20
Strength to Weight: Bending, points 15 to 26
19
Thermal Diffusivity, mm2/s 16
13
Thermal Shock Resistance, points 16 to 38
17

Alloy Composition

Carbon (C), % 0
0 to 0.15
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
93.4 to 95.5
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0.5 to 0.8
Nickel (Ni), % 8.5 to 9.5
4.0 to 5.0
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.045
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0