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C81400 Copper vs. EN 1.7725 Steel

C81400 copper belongs to the copper alloys classification, while EN 1.7725 steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C81400 copper and the bottom bar is EN 1.7725 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 11
14
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 41
73
Tensile Strength: Ultimate (UTS), MPa 370
830 to 1000
Tensile Strength: Yield (Proof), MPa 250
610 to 860

Thermal Properties

Latent Heat of Fusion, J/g 210
250
Maximum Temperature: Mechanical, °C 200
440
Melting Completion (Liquidus), °C 1090
1460
Melting Onset (Solidus), °C 1070
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 61
8.6

Otherwise Unclassified Properties

Base Metal Price, % relative 33
2.9
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.8
1.8
Embodied Energy, MJ/kg 45
24
Embodied Water, L/kg 310
54

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
110 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 260
980 to 1940
Stiffness to Weight: Axial, points 7.3
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11
29 to 35
Strength to Weight: Bending, points 13
25 to 28
Thermal Diffusivity, mm2/s 75
11
Thermal Shock Resistance, points 13
24 to 29

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0.27 to 0.34
Chromium (Cr), % 0.6 to 1.0
1.3 to 1.7
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
95.7 to 97.5
Manganese (Mn), % 0
0.6 to 1.0
Molybdenum (Mo), % 0
0.3 to 0.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0.050 to 0.15
Residuals, % 0 to 0.5
0