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EN 1.4458 Stainless Steel vs. C70620 Copper-nickel

EN 1.4458 stainless steel belongs to the iron alloys classification, while C70620 copper-nickel belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is EN 1.4458 stainless steel and the bottom bar is C70620 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 78
46
Tensile Strength: Ultimate (UTS), MPa 510
300 to 570

Thermal Properties

Latent Heat of Fusion, J/g 300
220
Maximum Temperature: Mechanical, °C 1100
220
Melting Completion (Liquidus), °C 1420
1120
Melting Onset (Solidus), °C 1370
1060
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 16
49
Thermal Expansion, µm/m-K 15
17

Otherwise Unclassified Properties

Base Metal Price, % relative 30
33
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 5.4
3.4
Embodied Energy, MJ/kg 75
51
Embodied Water, L/kg 200
300

Common Calculations

Stiffness to Weight: Axial, points 14
7.7
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 17
9.3 to 18
Strength to Weight: Bending, points 18
11 to 17
Thermal Diffusivity, mm2/s 4.2
14
Thermal Shock Resistance, points 12
10 to 20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.050
Chromium (Cr), % 19 to 22
0
Copper (Cu), % 0 to 2.0
86.5 to 90
Iron (Fe), % 40.2 to 53
1.0 to 1.8
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 2.0 to 2.5
0
Nickel (Ni), % 26 to 30
9.0 to 11
Nitrogen (N), % 0 to 0.2
0
Phosphorus (P), % 0 to 0.035
0 to 0.2
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.025
0 to 0.020
Zinc (Zn), % 0
0 to 0.5
Residuals, % 0
0 to 0.5