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C55280 Copper vs. S17400 Stainless Steel

C55280 copper belongs to the copper alloys classification, while S17400 stainless steel belongs to the iron alloys. There are 18 material properties with values for both materials. Properties with values for just one material (19, in this case) are not shown.

For each property being compared, the top bar is C55280 copper and the bottom bar is S17400 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 180
910 to 1390

Thermal Properties

Latent Heat of Fusion, J/g 190
280
Maximum Temperature: Mechanical, °C 200
850
Melting Completion (Liquidus), °C 790
1440
Melting Onset (Solidus), °C 640
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Density, g/cm3 8.5
7.8
Embodied Carbon, kg CO2/kg material 4.2
2.7
Embodied Energy, MJ/kg 67
39

Common Calculations

Stiffness to Weight: Axial, points 6.9
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 5.9
32 to 49
Strength to Weight: Bending, points 8.3
27 to 35
Thermal Shock Resistance, points 7.4
30 to 46

Alloy Composition

Carbon (C), % 0
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 90.5 to 91.4
3.0 to 5.0
Iron (Fe), % 0
70.4 to 78.9
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
Phosphorus (P), % 6.8 to 7.2
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Silver (Ag), % 1.8 to 2.2
0
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.15
0