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ACI-ASTM CN7M Steel vs. CC380H Copper-nickel

ACI-ASTM CN7M steel belongs to the iron alloys classification, while CC380H copper-nickel belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is ACI-ASTM CN7M steel and the bottom bar is CC380H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
80
Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 44
26
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
47
Tensile Strength: Ultimate (UTS), MPa 480
310
Tensile Strength: Yield (Proof), MPa 200
120

Thermal Properties

Latent Heat of Fusion, J/g 310
220
Maximum Temperature: Mechanical, °C 1100
220
Melting Completion (Liquidus), °C 1410
1130
Melting Onset (Solidus), °C 1450
1080
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 21
46
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
11
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
11

Otherwise Unclassified Properties

Base Metal Price, % relative 32
36
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 5.6
3.8
Embodied Energy, MJ/kg 78
58
Embodied Water, L/kg 210
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
65
Resilience: Unit (Modulus of Resilience), kJ/m3 110
59
Stiffness to Weight: Axial, points 14
7.8
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
9.8
Strength to Weight: Bending, points 17
12
Thermal Diffusivity, mm2/s 5.6
13
Thermal Shock Resistance, points 12
11

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 3.0 to 4.0
84.5 to 89
Iron (Fe), % 37.4 to 48.5
1.0 to 1.8
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.5
1.0 to 1.5
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
9.0 to 11
Niobium (Nb), % 0
0 to 1.0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0 to 0.1
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
0 to 0.5