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C82700 Copper vs. S42300 Stainless Steel

C82700 copper belongs to the copper alloys classification, while S42300 stainless 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 C82700 copper and the bottom bar is S42300 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 1.8
9.1
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 46
77
Tensile Strength: Ultimate (UTS), MPa 1200
1100
Tensile Strength: Yield (Proof), MPa 1020
850

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Maximum Temperature: Mechanical, °C 300
750
Melting Completion (Liquidus), °C 950
1470
Melting Onset (Solidus), °C 860
1420
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 130
25
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
4.5
Electrical Conductivity: Equal Weight (Specific), % IACS 21
5.2

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.8
Embodied Carbon, kg CO2/kg material 12
3.2
Embodied Energy, MJ/kg 180
44
Embodied Water, L/kg 310
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
93
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
1840
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 38
39
Strength to Weight: Bending, points 29
30
Thermal Diffusivity, mm2/s 39
6.8
Thermal Shock Resistance, points 41
40

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.4 to 2.6
0
Carbon (C), % 0
0.27 to 0.32
Chromium (Cr), % 0 to 0.090
11 to 12
Copper (Cu), % 94.6 to 96.7
0
Iron (Fe), % 0 to 0.25
82 to 85.1
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
1.0 to 1.4
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 1.0 to 1.5
0 to 0.5
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.15
0 to 0.5
Sulfur (S), % 0
0 to 0.025
Tin (Sn), % 0 to 0.1
0
Vanadium (V), % 0
0.2 to 0.3
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0