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C18700 Copper vs. S45503 Stainless Steel

C18700 copper belongs to the copper alloys classification, while S45503 stainless steel belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is S45503 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 9.0 to 9.6
4.6 to 6.8
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
75
Shear Strength, MPa 170 to 190
940 to 1070
Tensile Strength: Ultimate (UTS), MPa 290 to 330
1610 to 1850
Tensile Strength: Yield (Proof), MPa 230 to 250
1430 to 1700

Thermal Properties

Latent Heat of Fusion, J/g 210
270
Maximum Temperature: Mechanical, °C 200
760
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 950
1400
Specific Heat Capacity, J/kg-K 380
470
Thermal Expansion, µm/m-K 17
11

Otherwise Unclassified Properties

Base Metal Price, % relative 30
15
Density, g/cm3 9.0
7.9
Embodied Carbon, kg CO2/kg material 2.6
3.4
Embodied Energy, MJ/kg 41
48
Embodied Water, L/kg 310
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
82 to 110
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
57 to 65
Strength to Weight: Bending, points 11 to 12
39 to 43
Thermal Shock Resistance, points 10 to 12
56 to 64

Alloy Composition

Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 98 to 99.2
1.5 to 2.5
Iron (Fe), % 0
72.4 to 78.9
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
7.5 to 9.5
Niobium (Nb), % 0
0.1 to 0.5
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.2
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 0
1.0 to 1.4
Residuals, % 0 to 0.5
0