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C82700 Copper vs. S32950 Stainless Steel

C82700 copper belongs to the copper alloys classification, while S32950 stainless steel belongs to the iron alloys. There are 28 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 C82700 copper and the bottom bar is S32950 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 1.8
17
Poisson's Ratio 0.33
0.27
Rockwell C Hardness 39
28
Shear Modulus, GPa 46
80
Tensile Strength: Ultimate (UTS), MPa 1200
780
Tensile Strength: Yield (Proof), MPa 1020
550

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Maximum Temperature: Mechanical, °C 300
1100
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
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.1
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
3.4
Embodied Energy, MJ/kg 180
47
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21
120
Resilience: Unit (Modulus of Resilience), kJ/m3 4260
730
Stiffness to Weight: Axial, points 7.8
15
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
4.3
Thermal Shock Resistance, points 41
21

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 2.4 to 2.6
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.090
26 to 29
Copper (Cu), % 94.6 to 96.7
0
Iron (Fe), % 0 to 0.25
60.3 to 69.4
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 2.5
Nickel (Ni), % 1.0 to 1.5
3.5 to 5.2
Nitrogen (N), % 0
0.15 to 0.35
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0 to 0.15
0 to 0.6
Sulfur (S), % 0
0 to 0.010
Tin (Sn), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0