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ACI-ASTM CN7M Steel vs. CC140C Copper

ACI-ASTM CN7M steel belongs to the iron alloys classification, while CC140C copper 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 CC140C copper.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 140
110
Elastic (Young's, Tensile) Modulus, GPa 200
120
Elongation at Break, % 44
11
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 77
44
Tensile Strength: Ultimate (UTS), MPa 480
340
Tensile Strength: Yield (Proof), MPa 200
230

Thermal Properties

Latent Heat of Fusion, J/g 310
210
Maximum Temperature: Mechanical, °C 1100
200
Melting Completion (Liquidus), °C 1410
1100
Melting Onset (Solidus), °C 1450
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 21
310
Thermal Expansion, µm/m-K 15
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.6
77
Electrical Conductivity: Equal Weight (Specific), % IACS 1.8
78

Otherwise Unclassified Properties

Base Metal Price, % relative 32
31
Density, g/cm3 8.1
8.9
Embodied Carbon, kg CO2/kg material 5.6
2.6
Embodied Energy, MJ/kg 78
41
Embodied Water, L/kg 210
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
34
Resilience: Unit (Modulus of Resilience), kJ/m3 110
220
Stiffness to Weight: Axial, points 14
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 17
10
Strength to Weight: Bending, points 17
12
Thermal Diffusivity, mm2/s 5.6
89
Thermal Shock Resistance, points 12
12

Alloy Composition

Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 19 to 22
0.4 to 1.2
Copper (Cu), % 3.0 to 4.0
98.8 to 99.6
Iron (Fe), % 37.4 to 48.5
0
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 2.0 to 3.0
0
Nickel (Ni), % 27.5 to 30.5
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.5
0
Sulfur (S), % 0 to 0.040
0