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C81400 Copper vs. EN 1.4865 Stainless Steel

C81400 copper belongs to the copper alloys classification, while EN 1.4865 stainless steel belongs to the iron alloys. There are 28 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 C81400 copper and the bottom bar is EN 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
6.8
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
76
Tensile Strength: Ultimate (UTS), MPa 370
470
Tensile Strength: Yield (Proof), MPa 250
250

Thermal Properties

Latent Heat of Fusion, J/g 210
320
Maximum Temperature: Mechanical, °C 200
1020
Melting Completion (Liquidus), °C 1090
1380
Melting Onset (Solidus), °C 1070
1330
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 260
12
Thermal Expansion, µm/m-K 17
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 61
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 33
33
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.8
Embodied Energy, MJ/kg 45
81
Embodied Water, L/kg 310
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
27
Resilience: Unit (Modulus of Resilience), kJ/m3 260
160
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11
16
Strength to Weight: Bending, points 13
17
Thermal Diffusivity, mm2/s 75
3.1
Thermal Shock Resistance, points 13
11

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0.6 to 1.0
18 to 21
Copper (Cu), % 98.4 to 99.38
0
Iron (Fe), % 0
34.4 to 44.7
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0
36 to 39
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