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C18700 Copper vs. EN 1.7077 Steel

C18700 copper belongs to the copper alloys classification, while EN 1.7077 steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is EN 1.7077 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
73
Tensile Strength: Ultimate (UTS), MPa 290 to 330
490 to 1750

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
420
Melting Completion (Liquidus), °C 1080
1460
Melting Onset (Solidus), °C 950
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
45
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.3
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
1.4
Embodied Energy, MJ/kg 41
19
Embodied Water, L/kg 310
51

Common Calculations

Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
17 to 62
Strength to Weight: Bending, points 11 to 12
18 to 41
Thermal Diffusivity, mm2/s 110
12
Thermal Shock Resistance, points 10 to 12
14 to 51

Alloy Composition

Boron (B), % 0
0.00080 to 0.0050
Carbon (C), % 0
0.34 to 0.38
Chromium (Cr), % 0
0.9 to 1.2
Copper (Cu), % 98 to 99.2
0 to 0.25
Iron (Fe), % 0
96.8 to 98.1
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0.7 to 1.0
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0
0 to 0.025
Residuals, % 0 to 0.5
0