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C18700 Copper vs. EN 1.4872 Stainless Steel

C18700 copper belongs to the copper alloys classification, while EN 1.4872 stainless steel belongs to the iron alloys. There are 29 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 1.4872 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 9.0 to 9.6
28
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
79
Shear Strength, MPa 170 to 190
620
Tensile Strength: Ultimate (UTS), MPa 290 to 330
950
Tensile Strength: Yield (Proof), MPa 230 to 250
560

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1150
Melting Completion (Liquidus), °C 1080
1390
Melting Onset (Solidus), °C 950
1340
Specific Heat Capacity, J/kg-K 380
490
Thermal Conductivity, W/m-K 380
15
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.7

Otherwise Unclassified Properties

Base Metal Price, % relative 30
17
Density, g/cm3 9.0
7.6
Embodied Carbon, kg CO2/kg material 2.6
3.3
Embodied Energy, MJ/kg 41
47
Embodied Water, L/kg 310
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
230
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
780
Stiffness to Weight: Axial, points 7.1
15
Stiffness to Weight: Bending, points 18
26
Strength to Weight: Axial, points 9.0 to 10
35
Strength to Weight: Bending, points 11 to 12
28
Thermal Diffusivity, mm2/s 110
3.9
Thermal Shock Resistance, points 10 to 12
21

Alloy Composition

Carbon (C), % 0
0.2 to 0.3
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 98 to 99.2
0
Iron (Fe), % 0
54.2 to 61.6
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
8.0 to 10
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0
0.2 to 0.4
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Residuals, % 0 to 0.5
0