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C70250 Copper vs. S45500 Stainless Steel

C70250 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 (14, in this case) are not shown.

For each property being compared, the top bar is C70250 copper and the bottom bar is S45500 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
75
Tensile Strength: Ultimate (UTS), MPa 520 to 740
1370 to 1850

Thermal Properties

Latent Heat of Fusion, J/g 220
270
Maximum Temperature: Mechanical, °C 210
760
Melting Completion (Liquidus), °C 1100
1440
Melting Onset (Solidus), °C 1080
1400
Specific Heat Capacity, J/kg-K 390
470
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 31
17
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 2.9
3.8
Embodied Energy, MJ/kg 45
57
Embodied Water, L/kg 310
120

Common Calculations

Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 16 to 23
48 to 65
Strength to Weight: Bending, points 16 to 21
35 to 42
Thermal Shock Resistance, points 18 to 26
48 to 64

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 92.7 to 97.5
1.5 to 2.5
Iron (Fe), % 0
71.5 to 79.2
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.050 to 0.3
0
Manganese (Mn), % 0 to 0.1
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 2.2 to 4.2
7.5 to 9.5
Niobium (Nb), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0.25 to 1.2
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
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0