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C82500 Copper vs. S40920 Stainless Steel

C82500 copper belongs to the copper alloys classification, while S40920 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C82500 copper and the bottom bar is S40920 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 1.0 to 20
22
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 45
75
Tensile Strength: Ultimate (UTS), MPa 550 to 1100
430
Tensile Strength: Yield (Proof), MPa 310 to 980
190

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Maximum Temperature: Mechanical, °C 280
710
Melting Completion (Liquidus), °C 980
1450
Melting Onset (Solidus), °C 860
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 130
26
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 21
3.3

Otherwise Unclassified Properties

Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 10
2.0
Embodied Energy, MJ/kg 160
28
Embodied Water, L/kg 310
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11 to 94
78
Resilience: Unit (Modulus of Resilience), kJ/m3 400 to 4000
97
Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 18 to 35
15
Strength to Weight: Bending, points 17 to 27
16
Thermal Diffusivity, mm2/s 38
6.9
Thermal Shock Resistance, points 19 to 38
15

Alloy Composition

Aluminum (Al), % 0 to 0.15
0
Beryllium (Be), % 1.9 to 2.3
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0 to 0.1
10.5 to 11.7
Cobalt (Co), % 0.15 to 0.7
0
Copper (Cu), % 95.3 to 97.8
0
Iron (Fe), % 0 to 0.25
85.1 to 89.4
Lead (Pb), % 0 to 0.020
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.2
0 to 0.5
Niobium (Nb), % 0
0 to 0.1
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.2 to 0.35
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tin (Sn), % 0 to 0.1
0
Titanium (Ti), % 0 to 0.12
0.15 to 0.5
Zinc (Zn), % 0 to 0.1
0
Residuals, % 0 to 0.5
0