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C81400 Copper vs. EN 1.4557 Stainless Steel

C81400 copper belongs to the copper alloys classification, while EN 1.4557 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C81400 copper and the bottom bar is EN 1.4557 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 11
40
Poisson's Ratio 0.34
0.28
Shear Modulus, GPa 41
80
Tensile Strength: Ultimate (UTS), MPa 370
560
Tensile Strength: Yield (Proof), MPa 250
300

Thermal Properties

Latent Heat of Fusion, J/g 210
300
Maximum Temperature: Mechanical, °C 200
1090
Melting Completion (Liquidus), °C 1090
1460
Melting Onset (Solidus), °C 1070
1420
Specific Heat Capacity, J/kg-K 390
460
Thermal Conductivity, W/m-K 260
15
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 61
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 33
29
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 2.8
5.6
Embodied Energy, MJ/kg 45
76
Embodied Water, L/kg 310
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 36
190
Resilience: Unit (Modulus of Resilience), kJ/m3 260
210
Stiffness to Weight: Axial, points 7.3
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 11
19
Strength to Weight: Bending, points 13
19
Thermal Diffusivity, mm2/s 75
4.0
Thermal Shock Resistance, points 13
12

Alloy Composition

Beryllium (Be), % 0.020 to 0.1
0
Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0.6 to 1.0
19.5 to 20.5
Copper (Cu), % 98.4 to 99.38
0.5 to 1.0
Iron (Fe), % 0
49.5 to 56.3
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Residuals, % 0 to 0.5
0