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C82700 Copper vs. S82031 Stainless Steel

C82700 copper belongs to the copper alloys classification, while S82031 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C82700 copper and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 1.8
39
Poisson's Ratio 0.33
0.28
Rockwell C Hardness 39
27
Shear Modulus, GPa 46
78
Tensile Strength: Ultimate (UTS), MPa 1200
780
Tensile Strength: Yield (Proof), MPa 1020
570

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 300
980
Melting Completion (Liquidus), °C 950
1430
Melting Onset (Solidus), °C 860
1390
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 130
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 21
2.5

Otherwise Unclassified Properties

Density, g/cm3 8.7
7.7
Embodied Carbon, kg CO2/kg material 12
2.8
Embodied Energy, MJ/kg 180
39
Embodied Water, L/kg 310
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
280
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
820
Stiffness to Weight: Axial, points 7.8
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 38
28
Strength to Weight: Bending, points 29
24
Thermal Diffusivity, mm2/s 39
3.9
Thermal Shock Resistance, points 41
22

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.4 to 2.6
0
Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0 to 0.090
19 to 22
Copper (Cu), % 94.6 to 96.7
0 to 1.0
Iron (Fe), % 0 to 0.25
68 to 78.3
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 1.0 to 1.5
2.0 to 4.0
Nitrogen (N), % 0
0.14 to 0.24
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.15
0 to 0.8
Sulfur (S), % 0
0 to 0.0050
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0