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C18700 Copper vs. EN 1.0420 Cast Steel

C18700 copper belongs to the copper alloys classification, while EN 1.0420 cast steel belongs to the iron alloys. There are 28 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 C18700 copper and the bottom bar is EN 1.0420 cast steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.0 to 9.6
28
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Tensile Strength: Ultimate (UTS), MPa 290 to 330
460
Tensile Strength: Yield (Proof), MPa 230 to 250
220

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
400
Melting Completion (Liquidus), °C 1080
1470
Melting Onset (Solidus), °C 950
1430
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
53
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.9

Otherwise Unclassified Properties

Base Metal Price, % relative 30
1.7
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 41
18
Embodied Water, L/kg 310
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
130
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
16
Strength to Weight: Bending, points 11 to 12
17
Thermal Diffusivity, mm2/s 110
14
Thermal Shock Resistance, points 10 to 12
14

Alloy Composition

Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
99.935 to 100
Lead (Pb), % 0.8 to 1.5
0
Phosphorus (P), % 0
0 to 0.035
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0