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C18400 Copper vs. EN 1.7729 Steel

C18400 copper belongs to the copper alloys classification, while EN 1.7729 steel belongs to the iron alloys. There are 29 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 C18400 copper and the bottom bar is EN 1.7729 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 13 to 50
17
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 190 to 310
560
Tensile Strength: Ultimate (UTS), MPa 270 to 490
910
Tensile Strength: Yield (Proof), MPa 110 to 480
750

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
430
Melting Completion (Liquidus), °C 1080
1470
Melting Onset (Solidus), °C 1070
1430
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 320
40
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
7.6
Electrical Conductivity: Equal Weight (Specific), % IACS 81
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 31
3.8
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 41
49
Embodied Water, L/kg 310
59

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63 to 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 54 to 980
1500
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.5 to 15
32
Strength to Weight: Bending, points 10 to 16
27
Thermal Diffusivity, mm2/s 94
11
Thermal Shock Resistance, points 9.6 to 17
27

Alloy Composition

Aluminum (Al), % 0
0.015 to 0.080
Arsenic (As), % 0 to 0.0050
0 to 0.020
Boron (B), % 0
0.0010 to 0.010
Calcium (Ca), % 0 to 0.0050
0
Carbon (C), % 0
0.17 to 0.23
Chromium (Cr), % 0.4 to 1.2
0.9 to 1.2
Copper (Cu), % 97.2 to 99.6
0 to 0.2
Iron (Fe), % 0 to 0.15
94.8 to 97
Lithium (Li), % 0 to 0.050
0
Manganese (Mn), % 0
0.35 to 0.75
Molybdenum (Mo), % 0
0.9 to 1.1
Nickel (Ni), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.050
0 to 0.020
Silicon (Si), % 0 to 0.1
0 to 0.4
Sulfur (S), % 0
0 to 0.015
Tin (Sn), % 0
0 to 0.020
Titanium (Ti), % 0
0.070 to 0.15
Vanadium (V), % 0
0.6 to 0.8
Zinc (Zn), % 0 to 0.7
0
Residuals, % 0 to 0.5
0