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CR023A Copper vs. SAE-AISI S7 Steel

CR023A copper belongs to the copper alloys classification, while SAE-AISI S7 steel belongs to the iron alloys. There are 23 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 CR023A copper and the bottom bar is SAE-AISI S7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 43
74
Tensile Strength: Ultimate (UTS), MPa 220
670 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 210
260
Melting Completion (Liquidus), °C 1090
1460
Melting Onset (Solidus), °C 1040
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 380
40
Thermal Expansion, µm/m-K 17
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 100
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 100
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 31
5.0
Density, g/cm3 9.0
7.8
Embodied Carbon, kg CO2/kg material 2.6
2.3
Embodied Energy, MJ/kg 41
31
Embodied Water, L/kg 320
65

Common Calculations

Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 6.8
24 to 72
Strength to Weight: Bending, points 9.0
22 to 46
Thermal Diffusivity, mm2/s 110
11
Thermal Shock Resistance, points 7.8
22 to 66

Alloy Composition

Bismuth (Bi), % 0 to 0.00050
0
Carbon (C), % 0
0.45 to 0.55
Chromium (Cr), % 0
3.0 to 3.5
Copper (Cu), % 99.9 to 99.995
0 to 0.25
Iron (Fe), % 0
91.6 to 94.9
Lead (Pb), % 0 to 0.0050
0
Manganese (Mn), % 0
0.2 to 0.9
Molybdenum (Mo), % 0
1.3 to 1.8
Phosphorus (P), % 0.0050 to 0.013
0 to 0.030
Silicon (Si), % 0
0.2 to 1.0
Silver (Ag), % 0 to 0.015
0
Sulfur (S), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.3