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C72700 Copper-nickel vs. ASTM Grade HC Steel

C72700 copper-nickel belongs to the copper alloys classification, while ASTM grade HC 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 HC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 4.0 to 36
6.0
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 44
80
Tensile Strength: Ultimate (UTS), MPa 460 to 1070
430
Tensile Strength: Yield (Proof), MPa 580 to 1060
200

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1100
1410
Melting Onset (Solidus), °C 930
1370
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 54
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 36
14
Density, g/cm3 8.8
7.6
Embodied Carbon, kg CO2/kg material 4.0
2.8
Embodied Energy, MJ/kg 62
40
Embodied Water, L/kg 350
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20 to 380
21
Resilience: Unit (Modulus of Resilience), kJ/m3 1420 to 4770
95
Stiffness to Weight: Axial, points 7.4
15
Stiffness to Weight: Bending, points 19
26
Strength to Weight: Axial, points 14 to 34
16
Strength to Weight: Bending, points 15 to 26
16
Thermal Diffusivity, mm2/s 16
4.5
Thermal Shock Resistance, points 16 to 38
14

Alloy Composition

Carbon (C), % 0
0 to 0.5
Chromium (Cr), % 0
26 to 30
Copper (Cu), % 82.1 to 86
0
Iron (Fe), % 0 to 0.5
61.9 to 74
Lead (Pb), % 0 to 0.020
0
Magnesium (Mg), % 0 to 0.15
0
Manganese (Mn), % 0.050 to 0.3
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 8.5 to 9.5
0 to 4.0
Niobium (Nb), % 0 to 0.1
0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 5.5 to 6.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.3
0