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EN 1.4123 Stainless Steel vs. C70400 Copper-nickel

EN 1.4123 stainless steel belongs to the iron alloys classification, while C70400 copper-nickel belongs to the copper alloys. There are 24 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 EN 1.4123 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 77
45
Tensile Strength: Ultimate (UTS), MPa 720 to 810
300 to 310

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 840
210
Melting Completion (Liquidus), °C 1450
1120
Melting Onset (Solidus), °C 1410
1060
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 23
64
Thermal Expansion, µm/m-K 10
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
14
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
14

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 7.7
8.9
Embodied Carbon, kg CO2/kg material 4.2
3.0
Embodied Energy, MJ/kg 62
47
Embodied Water, L/kg 120
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 26 to 29
9.3 to 9.8
Strength to Weight: Bending, points 23 to 25
11 to 12
Thermal Diffusivity, mm2/s 6.3
18
Thermal Shock Resistance, points 26 to 29
10 to 11

Alloy Composition

Carbon (C), % 0.35 to 0.5
0
Chromium (Cr), % 14 to 16.5
0
Copper (Cu), % 0
89.8 to 93.6
Iron (Fe), % 76.7 to 84.6
1.3 to 1.7
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.0
0.3 to 0.8
Molybdenum (Mo), % 1.0 to 2.5
0
Nickel (Ni), % 0 to 0.5
4.8 to 6.2
Nitrogen (N), % 0.1 to 0.3
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Vanadium (V), % 0 to 1.5
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5