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ACI-ASTM CN3MN Steel vs. C70620 Copper-nickel

ACI-ASTM CN3MN steel belongs to the iron alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN3MN steel and the bottom bar is C70620 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
120
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 80
46
Tensile Strength: Ultimate (UTS), MPa 620
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 310
220
Maximum Temperature: Mechanical, °C 1100
220
Melting Completion (Liquidus), °C 1460
1120
Melting Onset (Solidus), °C 1410
1060
Specific Heat Capacity, J/kg-K 460
390
Thermal Conductivity, W/m-K 13
49
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 33
33
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 6.2
3.4
Embodied Energy, MJ/kg 84
51
Embodied Water, L/kg 200
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21
9.3 to 18
Strength to Weight: Bending, points 20
11 to 17
Thermal Diffusivity, mm2/s 3.4
14
Thermal Shock Resistance, points 14
10 to 20

Alloy Composition


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Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 20 to 22
0
Copper (Cu), % 0 to 0.75
86.5 to 90
Iron (Fe), % 41.4 to 50.3
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 23.5 to 25.5
9.0 to 11
Nitrogen (N), % 0.18 to 0.26
0
Phosphorus (P), % 0 to 0.040
0 to 0.2
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.010
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5