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C18100 Copper vs. EN 1.4945 Stainless Steel

C18100 copper belongs to the copper alloys classification, while EN 1.4945 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 C18100 copper and the bottom bar is EN 1.4945 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 8.3
19 to 34
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 47
77
Shear Strength, MPa 300
430 to 460
Tensile Strength: Ultimate (UTS), MPa 510
640 to 740
Tensile Strength: Yield (Proof), MPa 460
290 to 550

Thermal Properties

Latent Heat of Fusion, J/g 210
290
Maximum Temperature: Mechanical, °C 200
920
Melting Completion (Liquidus), °C 1080
1490
Melting Onset (Solidus), °C 1020
1440
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 320
14
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 80
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 81
3.2

Otherwise Unclassified Properties

Base Metal Price, % relative 31
30
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 2.7
5.0
Embodied Energy, MJ/kg 43
73
Embodied Water, L/kg 310
150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 40
130 to 180
Resilience: Unit (Modulus of Resilience), kJ/m3 900
210 to 760
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 16
22 to 25
Strength to Weight: Bending, points 16
20 to 22
Thermal Diffusivity, mm2/s 94
3.7
Thermal Shock Resistance, points 18
14 to 16

Alloy Composition

Carbon (C), % 0
0.040 to 0.1
Chromium (Cr), % 0.4 to 1.2
15.5 to 17.5
Copper (Cu), % 98.7 to 99.49
0
Iron (Fe), % 0
57.9 to 65.7
Magnesium (Mg), % 0.030 to 0.060
0
Manganese (Mn), % 0
0 to 1.5
Nickel (Ni), % 0
15.5 to 17.5
Niobium (Nb), % 0
0.4 to 1.2
Nitrogen (N), % 0
0.060 to 0.14
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0.3 to 0.6
Sulfur (S), % 0
0 to 0.015
Tungsten (W), % 0
2.5 to 3.5
Zirconium (Zr), % 0.080 to 0.2
0
Residuals, % 0 to 0.5
0