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C99500 Copper vs. S31266 Stainless Steel

C99500 copper belongs to the copper alloys classification, while S31266 stainless steel belongs to the iron alloys. There are 26 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 C99500 copper and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
210
Elongation at Break, % 13
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 45
81
Tensile Strength: Ultimate (UTS), MPa 540
860
Tensile Strength: Yield (Proof), MPa 310
470

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Maximum Temperature: Mechanical, °C 210
1100
Melting Completion (Liquidus), °C 1090
1470
Melting Onset (Solidus), °C 1040
1420
Specific Heat Capacity, J/kg-K 400
460
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 10
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 10
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 30
37
Density, g/cm3 8.7
8.2
Embodied Carbon, kg CO2/kg material 3.0
6.5
Embodied Energy, MJ/kg 47
89
Embodied Water, L/kg 300
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 63
290
Resilience: Unit (Modulus of Resilience), kJ/m3 410
540
Stiffness to Weight: Axial, points 7.7
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 17
24
Thermal Shock Resistance, points 19
18

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
0
Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
23 to 25
Copper (Cu), % 82.5 to 92
1.0 to 2.5
Iron (Fe), % 3.0 to 5.0
34.1 to 46
Lead (Pb), % 0 to 0.25
0
Manganese (Mn), % 0 to 0.5
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 3.5 to 5.5
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.5 to 2.0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5
Zinc (Zn), % 0.5 to 2.0
0
Residuals, % 0 to 0.3
0