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C18700 Copper vs. ACI-ASTM CK35MN Steel

C18700 copper belongs to the copper alloys classification, while ACI-ASTM CK35MN steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is ACI-ASTM CK35MN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 9.0 to 9.6
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
81
Tensile Strength: Ultimate (UTS), MPa 290 to 330
650
Tensile Strength: Yield (Proof), MPa 230 to 250
310

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 950
1410
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 30
31
Density, g/cm3 9.0
8.0
Embodied Carbon, kg CO2/kg material 2.6
5.9
Embodied Energy, MJ/kg 41
81
Embodied Water, L/kg 310
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
210
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
240
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 9.0 to 10
22
Strength to Weight: Bending, points 11 to 12
21
Thermal Diffusivity, mm2/s 110
3.3
Thermal Shock Resistance, points 10 to 12
14

Alloy Composition

Carbon (C), % 0
0 to 0.035
Chromium (Cr), % 0
22 to 24
Copper (Cu), % 98 to 99.2
0 to 0.4
Iron (Fe), % 0
43.4 to 51.8
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
6.0 to 6.8
Nickel (Ni), % 0
20 to 22
Nitrogen (N), % 0
0.21 to 0.32
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Residuals, % 0 to 0.5
0