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EN 1.6781 Steel vs. C12600 Copper

EN 1.6781 steel belongs to the iron alloys classification, while C12600 copper belongs to the copper alloys. There are 28 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 EN 1.6781 steel and the bottom bar is C12600 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 17
56
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
56
Tensile Strength: Ultimate (UTS), MPa 830
270
Tensile Strength: Yield (Proof), MPa 680
69

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Maximum Temperature: Mechanical, °C 450
200
Melting Completion (Liquidus), °C 1460
1080
Melting Onset (Solidus), °C 1420
1030
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 44
130
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.9
29
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
29

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
30
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 1.9
2.6
Embodied Energy, MJ/kg 25
41
Embodied Water, L/kg 60
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1220
21
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 29
8.2
Strength to Weight: Bending, points 25
10
Thermal Diffusivity, mm2/s 12
39
Thermal Shock Resistance, points 24
9.5

Alloy Composition

Carbon (C), % 0.15 to 0.19
0
Chromium (Cr), % 1.3 to 1.8
0
Copper (Cu), % 0
99.5 to 99.8
Iron (Fe), % 92.6 to 94.6
0
Manganese (Mn), % 0.55 to 0.8
0
Molybdenum (Mo), % 0.45 to 0.6
0
Nickel (Ni), % 3.0 to 3.5
0
Phosphorus (P), % 0 to 0.015
0.2 to 0.4
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.015
0