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C18700 Copper vs. EN 1.4823 Stainless Steel

C18700 copper belongs to the copper alloys classification, while EN 1.4823 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is EN 1.4823 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 9.6
3.4
Poisson's Ratio 0.34
0.27
Shear Modulus, GPa 43
79
Tensile Strength: Ultimate (UTS), MPa 290 to 330
620
Tensile Strength: Yield (Proof), MPa 230 to 250
290

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1080
1400
Melting Onset (Solidus), °C 950
1360
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 380
17
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 30
16
Density, g/cm3 9.0
7.6
Embodied Carbon, kg CO2/kg material 2.6
3.0
Embodied Energy, MJ/kg 41
43
Embodied Water, L/kg 310
170

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
17
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
200
Stiffness to Weight: Axial, points 7.1
15
Stiffness to Weight: Bending, points 18
26
Strength to Weight: Axial, points 9.0 to 10
23
Strength to Weight: Bending, points 11 to 12
21
Thermal Diffusivity, mm2/s 110
4.5
Thermal Shock Resistance, points 10 to 12
17

Alloy Composition

Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
25 to 28
Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
60.9 to 70.7
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
3.0 to 6.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
1.0 to 2.5
Sulfur (S), % 0
0 to 0.030
Residuals, % 0 to 0.5
0