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C14500 Copper vs. S31803 Stainless Steel

C14500 copper belongs to the copper alloys classification, while S31803 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is C14500 copper and the bottom bar is S31803 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 12 to 50
29
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 43
80
Shear Strength, MPa 150 to 190
460
Tensile Strength: Ultimate (UTS), MPa 220 to 330
710
Tensile Strength: Yield (Proof), MPa 69 to 260
500

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1060
Melting Completion (Liquidus), °C 1080
1450
Melting Onset (Solidus), °C 1050
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 360
16
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 94
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 95
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 33
17
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.6
3.6
Embodied Energy, MJ/kg 42
49
Embodied Water, L/kg 310
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36 to 85
180
Resilience: Unit (Modulus of Resilience), kJ/m3 21 to 300
630
Stiffness to Weight: Axial, points 7.2
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 6.8 to 10
25
Strength to Weight: Bending, points 9.1 to 12
23
Thermal Diffusivity, mm2/s 100
4.3
Thermal Shock Resistance, points 8.0 to 12
20

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
21 to 23
Copper (Cu), % 99.2 to 99.596
0
Iron (Fe), % 0
63.7 to 71.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
4.5 to 6.5
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0.0040 to 0.012
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Tellurium (Te), % 0.4 to 0.7
0