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C18700 Copper vs. EN 1.7375 Steel

C18700 copper belongs to the copper alloys classification, while EN 1.7375 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is EN 1.7375 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.0 to 9.6
20
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
74
Shear Strength, MPa 170 to 190
380
Tensile Strength: Ultimate (UTS), MPa 290 to 330
620
Tensile Strength: Yield (Proof), MPa 230 to 250
400

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
460
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
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 99
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
3.9
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 2.6
1.8
Embodied Energy, MJ/kg 41
23
Embodied Water, L/kg 310
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
110
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
420
Stiffness to Weight: Axial, points 7.1
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
22
Strength to Weight: Bending, points 11 to 12
20
Thermal Diffusivity, mm2/s 110
11
Thermal Shock Resistance, points 10 to 12
18

Alloy Composition

Aluminum (Al), % 0
0.010 to 0.040
Carbon (C), % 0
0.1 to 0.15
Chromium (Cr), % 0
2.0 to 2.5
Copper (Cu), % 98 to 99.2
0 to 0.25
Iron (Fe), % 0
94.5 to 96.7
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0.3 to 0.8
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0
0 to 0.015
Silicon (Si), % 0
0 to 0.3
Sulfur (S), % 0
0 to 0.010
Residuals, % 0 to 0.5
0