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EN 1.4557 Stainless Steel vs. C81400 Copper

EN 1.4557 stainless steel belongs to the iron alloys classification, while C81400 copper belongs to the copper 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 EN 1.4557 stainless steel and the bottom bar is C81400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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