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C55280 Copper vs. S31655 Stainless Steel

C55280 copper belongs to the copper alloys classification, while S31655 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (17, in this case) are not shown.

For each property being compared, the top bar is C55280 copper and the bottom bar is S31655 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 40
78
Tensile Strength: Ultimate (UTS), MPa 180
710

Thermal Properties

Latent Heat of Fusion, J/g 190
290
Maximum Temperature: Mechanical, °C 200
1010
Melting Completion (Liquidus), °C 790
1430
Melting Onset (Solidus), °C 640
1380
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 16
16

Otherwise Unclassified Properties

Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 4.2
3.3
Embodied Energy, MJ/kg 67
46

Common Calculations

Stiffness to Weight: Axial, points 6.9
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 5.9
25
Strength to Weight: Bending, points 8.3
23
Thermal Shock Resistance, points 7.4
16

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
19.5 to 21.5
Copper (Cu), % 90.5 to 91.4
0 to 1.0
Iron (Fe), % 0
63.2 to 71.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0.5 to 1.5
Nickel (Ni), % 0
8.0 to 9.5
Nitrogen (N), % 0
0.14 to 0.25
Phosphorus (P), % 6.8 to 7.2
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 1.8 to 2.2
0
Sulfur (S), % 0
0 to 0.015
Residuals, % 0 to 0.15
0