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C82700 Copper vs. ACI-ASTM CG12 Steel

C82700 copper belongs to the copper alloys classification, while ACI-ASTM CG12 steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C82700 copper and the bottom bar is ACI-ASTM CG12 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 1.8
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 46
78
Tensile Strength: Ultimate (UTS), MPa 1200
550
Tensile Strength: Yield (Proof), MPa 1020
220

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Maximum Temperature: Mechanical, °C 300
1040
Melting Completion (Liquidus), °C 950
1410
Melting Onset (Solidus), °C 860
1370
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 21
2.4

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 12
3.3
Embodied Energy, MJ/kg 180
48
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
180
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
120
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 38
20
Strength to Weight: Bending, points 29
19
Thermal Diffusivity, mm2/s 39
4.0
Thermal Shock Resistance, points 41
12

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.4 to 2.6
0
Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0 to 0.090
20 to 23
Copper (Cu), % 94.6 to 96.7
0
Iron (Fe), % 0 to 0.25
60.3 to 70
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 1.0 to 1.5
10 to 13
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 2.0
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0