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C55180 Copper vs. S31254 Stainless Steel

C55180 copper belongs to the copper alloys classification, while S31254 stainless steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is C55180 copper and the bottom bar is S31254 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
80
Tensile Strength: Ultimate (UTS), MPa 200
720
Tensile Strength: Yield (Proof), MPa 100
330

Thermal Properties

Latent Heat of Fusion, J/g 200
300
Maximum Temperature: Mechanical, °C 200
1090
Melting Completion (Liquidus), °C 920
1460
Melting Onset (Solidus), °C 710
1420
Specific Heat Capacity, J/kg-K 400
460
Thermal Conductivity, W/m-K 200
14
Thermal Expansion, µm/m-K 17
17

Otherwise Unclassified Properties

Base Metal Price, % relative 29
28
Density, g/cm3 8.6
8.0
Embodied Carbon, kg CO2/kg material 2.5
5.5
Embodied Energy, MJ/kg 39
74
Embodied Water, L/kg 290
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 34
240
Resilience: Unit (Modulus of Resilience), kJ/m3 48
270
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 6.4
25
Strength to Weight: Bending, points 8.8
22
Thermal Diffusivity, mm2/s 56
3.8
Thermal Shock Resistance, points 7.9
15

Alloy Composition

Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 94.7 to 95.2
0.5 to 1.0
Iron (Fe), % 0
51.4 to 56.3
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
6.0 to 6.5
Nickel (Ni), % 0
17.5 to 18.5
Nitrogen (N), % 0
0.18 to 0.22
Phosphorus (P), % 4.8 to 5.2
0 to 0.030
Silicon (Si), % 0
0 to 0.8
Sulfur (S), % 0
0 to 0.010
Residuals, % 0 to 0.15
0