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C82800 Copper vs. SAE-AISI 4340M Steel

C82800 copper belongs to the copper alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is C82800 copper and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 1.0 to 20
6.0
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 46
72
Tensile Strength: Ultimate (UTS), MPa 670 to 1140
2340
Tensile Strength: Yield (Proof), MPa 380 to 1000
1240

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 310
430
Melting Completion (Liquidus), °C 930
1440
Melting Onset (Solidus), °C 890
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 120
38
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 18
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 19
9.1

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 12
1.9
Embodied Energy, MJ/kg 190
26
Embodied Water, L/kg 310
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 4080
4120
Stiffness to Weight: Axial, points 7.8
13
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 21 to 36
84
Strength to Weight: Bending, points 20 to 28
51
Thermal Diffusivity, mm2/s 36
10
Thermal Shock Resistance, points 23 to 39
70

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.5 to 2.9
0
Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0 to 0.1
0.7 to 1.0
Cobalt (Co), % 0.15 to 0.7
0
Copper (Cu), % 94.6 to 97.2
0
Iron (Fe), % 0 to 0.25
93.3 to 94.8
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0 to 0.2
1.7 to 2.0
Phosphorus (P), % 0
0 to 0.012
Silicon (Si), % 0.2 to 0.35
1.5 to 1.8
Sulfur (S), % 0
0 to 0.012
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0
Vanadium (V), % 0
0.050 to 0.1
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0