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C70250 Copper vs. S21460 Stainless Steel

C70250 copper belongs to the copper alloys classification, while S21460 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is C70250 copper and the bottom bar is S21460 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 44
77
Tensile Strength: Ultimate (UTS), MPa 520 to 740
830

Thermal Properties

Latent Heat of Fusion, J/g 220
290
Maximum Temperature: Mechanical, °C 210
920
Melting Completion (Liquidus), °C 1100
1380
Melting Onset (Solidus), °C 1080
1330
Specific Heat Capacity, J/kg-K 390
480
Thermal Expansion, µm/m-K 17
18

Otherwise Unclassified Properties

Base Metal Price, % relative 31
14
Density, g/cm3 8.9
7.6
Embodied Carbon, kg CO2/kg material 2.9
3.0
Embodied Energy, MJ/kg 45
43
Embodied Water, L/kg 310
160

Common Calculations

Stiffness to Weight: Axial, points 7.4
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 16 to 23
30
Strength to Weight: Bending, points 16 to 21
26
Thermal Shock Resistance, points 18 to 26
17

Alloy Composition

Carbon (C), % 0
0 to 0.12
Chromium (Cr), % 0
17 to 19
Copper (Cu), % 92.7 to 97.5
0
Iron (Fe), % 0
57.3 to 63.7
Lead (Pb), % 0 to 0.050
0
Magnesium (Mg), % 0.050 to 0.3
0
Manganese (Mn), % 0 to 0.1
14 to 16
Nickel (Ni), % 2.2 to 4.2
5.0 to 6.0
Nitrogen (N), % 0
0.35 to 0.5
Phosphorus (P), % 0
0 to 0.060
Silicon (Si), % 0.25 to 1.2
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0