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SAE-AISI A3 Steel vs. CR020A Copper

SAE-AISI A3 steel belongs to the iron alloys classification, while CR020A copper belongs to the copper 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 SAE-AISI A3 steel and the bottom bar is CR020A copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
43
Tensile Strength: Ultimate (UTS), MPa 700 to 2150
220

Thermal Properties

Latent Heat of Fusion, J/g 260
210
Melting Completion (Liquidus), °C 1450
1090
Melting Onset (Solidus), °C 1410
1040
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 37
380
Thermal Expansion, µm/m-K 12
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.3
100
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
100

Otherwise Unclassified Properties

Base Metal Price, % relative 6.0
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 4.4
2.6
Embodied Energy, MJ/kg 67
41
Embodied Water, L/kg 78
320

Common Calculations

Stiffness to Weight: Axial, points 14
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 25 to 77
6.8
Strength to Weight: Bending, points 23 to 48
9.0
Thermal Diffusivity, mm2/s 10
110
Thermal Shock Resistance, points 23 to 70
7.8

Alloy Composition

Bismuth (Bi), % 0
0 to 0.00050
Carbon (C), % 1.2 to 1.3
0
Chromium (Cr), % 4.8 to 5.5
0
Copper (Cu), % 0 to 0.25
99.95 to 99.999
Iron (Fe), % 88.7 to 92
0
Lead (Pb), % 0
0 to 0.0050
Manganese (Mn), % 0.4 to 0.6
0
Molybdenum (Mo), % 0.9 to 1.4
0
Nickel (Ni), % 0 to 0.3
0
Phosphorus (P), % 0 to 0.030
0.0010 to 0.0060
Silicon (Si), % 0 to 0.5
0
Silver (Ag), % 0
0 to 0.015
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0.8 to 1.4
0