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C18700 Copper vs. EN 1.4537 Stainless Steel

C18700 copper belongs to the copper alloys classification, while EN 1.4537 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is C18700 copper and the bottom bar is EN 1.4537 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 9.0 to 9.6
42
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 43
80
Shear Strength, MPa 170 to 190
480
Tensile Strength: Ultimate (UTS), MPa 290 to 330
700
Tensile Strength: Yield (Proof), MPa 230 to 250
330

Thermal Properties

Latent Heat of Fusion, J/g 210
310
Maximum Temperature: Mechanical, °C 200
1100
Melting Completion (Liquidus), °C 1080
1440
Melting Onset (Solidus), °C 950
1390
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 380
14
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 98
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 99
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 30
34
Density, g/cm3 9.0
8.1
Embodied Carbon, kg CO2/kg material 2.6
6.1
Embodied Energy, MJ/kg 41
84
Embodied Water, L/kg 310
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24 to 29
240
Resilience: Unit (Modulus of Resilience), kJ/m3 240 to 280
270
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 9.0 to 10
24
Strength to Weight: Bending, points 11 to 12
22
Thermal Diffusivity, mm2/s 110
3.7
Thermal Shock Resistance, points 10 to 12
15

Alloy Composition

Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 98 to 99.2
1.0 to 2.0
Iron (Fe), % 0
36.3 to 46.1
Lead (Pb), % 0.8 to 1.5
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.7 to 5.7
Nickel (Ni), % 0
24 to 27
Nitrogen (N), % 0
0.17 to 0.25
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.010
Residuals, % 0 to 0.5
0