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SAE-AISI 4820 Steel vs. C55281 Copper

SAE-AISI 4820 steel belongs to the iron alloys classification, while C55281 copper belongs to the copper alloys. There are 18 material properties with values for both materials. Properties with values for just one material (14, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4820 steel and the bottom bar is C55281 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 570
190

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 410
200
Melting Completion (Liquidus), °C 1460
810
Melting Onset (Solidus), °C 1420
640
Specific Heat Capacity, J/kg-K 470
400
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Density, g/cm3 7.9
8.7
Embodied Carbon, kg CO2/kg material 1.8
7.0
Embodied Energy, MJ/kg 24
110

Common Calculations

Stiffness to Weight: Axial, points 13
6.9
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 20
6.1
Strength to Weight: Bending, points 19
8.5
Thermal Shock Resistance, points 19
7.7

Alloy Composition

Carbon (C), % 0.18 to 0.23
0
Copper (Cu), % 0
88.5 to 89.4
Iron (Fe), % 94.6 to 95.7
0
Manganese (Mn), % 0.5 to 0.7
0
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 3.3 to 3.8
0
Phosphorus (P), % 0 to 0.035
5.8 to 6.2
Silicon (Si), % 0.15 to 0.35
0
Silver (Ag), % 0
4.8 to 5.2
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.15