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EN 1.4557 Stainless Steel vs. C70400 Copper-nickel

EN 1.4557 stainless steel belongs to the iron alloys classification, while C70400 copper-nickel belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, 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 C70400 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
120
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 80
45
Tensile Strength: Ultimate (UTS), MPa 560
300 to 310
Tensile Strength: Yield (Proof), MPa 300
95 to 230

Thermal Properties

Latent Heat of Fusion, J/g 300
210
Maximum Temperature: Mechanical, °C 1090
210
Melting Completion (Liquidus), °C 1460
1120
Melting Onset (Solidus), °C 1420
1060
Specific Heat Capacity, J/kg-K 460
390
Thermal Conductivity, W/m-K 15
64
Thermal Expansion, µm/m-K 17
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
14
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
14

Otherwise Unclassified Properties

Base Metal Price, % relative 29
32
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 5.6
3.0
Embodied Energy, MJ/kg 76
47
Embodied Water, L/kg 190
300

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 210
38 to 220
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 19
9.3 to 9.8
Strength to Weight: Bending, points 19
11 to 12
Thermal Diffusivity, mm2/s 4.0
18
Thermal Shock Resistance, points 12
10 to 11

Alloy Composition

Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
89.8 to 93.6
Iron (Fe), % 49.5 to 56.3
1.3 to 1.7
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.2
0.3 to 0.8
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 19.5
4.8 to 6.2
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
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5