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C55181 Copper vs. ACI-ASTM CN7M Steel

C55181 copper belongs to the copper alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is ACI-ASTM CN7M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
77
Tensile Strength: Ultimate (UTS), MPa 200
480

Thermal Properties

Latent Heat of Fusion, J/g 190
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 790
1410
Melting Onset (Solidus), °C 710
1450
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 16
15

Otherwise Unclassified Properties

Base Metal Price, % relative 28
32
Density, g/cm3 8.5
8.1
Embodied Carbon, kg CO2/kg material 2.4
5.6
Embodied Energy, MJ/kg 38
78
Embodied Water, L/kg 290
210

Common Calculations

Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 6.5
17
Strength to Weight: Bending, points 8.9
17
Thermal Shock Resistance, points 8.2
12

Alloy Composition

Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
19 to 22
Copper (Cu), % 92.4 to 93
3.0 to 4.0
Iron (Fe), % 0
37.4 to 48.5
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0
27.5 to 30.5
Phosphorus (P), % 7.0 to 7.5
0 to 0.040
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Residuals, % 0 to 0.15
0