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C55181 Copper vs. S45500 Stainless Steel

C55181 copper belongs to the copper alloys classification, while S45500 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C55181 copper and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 200
1370 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 190
270
Maximum Temperature: Mechanical, °C 200
760
Melting Completion (Liquidus), °C 790
1440
Melting Onset (Solidus), °C 710
1400
Specific Heat Capacity, J/kg-K 410
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 28
17
Density, g/cm3 8.5
7.9
Embodied Carbon, kg CO2/kg material 2.4
3.8
Embodied Energy, MJ/kg 38
57
Embodied Water, L/kg 290
120

Common Calculations

Stiffness to Weight: Axial, points 7.0
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 6.5
48 to 65
Strength to Weight: Bending, points 8.9
35 to 42
Thermal Shock Resistance, points 8.2
48 to 64

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 92.4 to 93
1.5 to 2.5
Iron (Fe), % 0
71.5 to 79.2
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 7.0 to 7.5
0 to 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
0.8 to 1.4
Residuals, % 0 to 0.15
0