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EN 1.4959 Stainless Steel vs. C72150 Copper-nickel

EN 1.4959 stainless steel belongs to the iron alloys classification, while C72150 copper-nickel belongs to the copper alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4959 stainless steel and the bottom bar is C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
150
Elongation at Break, % 40
29
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
55
Shear Strength, MPa 430
320
Tensile Strength: Ultimate (UTS), MPa 630
490
Tensile Strength: Yield (Proof), MPa 190
210

Thermal Properties

Latent Heat of Fusion, J/g 300
250
Maximum Temperature: Mechanical, °C 1090
600
Melting Completion (Liquidus), °C 1400
1210
Melting Onset (Solidus), °C 1350
1250
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 12
22
Thermal Expansion, µm/m-K 15
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 31
45
Density, g/cm3 8.0
8.9
Embodied Carbon, kg CO2/kg material 5.4
6.1
Embodied Energy, MJ/kg 76
88
Embodied Water, L/kg 200
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
120
Resilience: Unit (Modulus of Resilience), kJ/m3 96
150
Stiffness to Weight: Axial, points 14
9.1
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 22
15
Strength to Weight: Bending, points 20
15
Thermal Diffusivity, mm2/s 3.2
6.0
Thermal Shock Resistance, points 15
18

Alloy Composition

Aluminum (Al), % 0.25 to 0.65
0
Carbon (C), % 0.050 to 0.1
0 to 0.1
Chromium (Cr), % 19 to 22
0
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
52.5 to 57
Iron (Fe), % 39.4 to 50.5
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 1.5
0 to 0.050
Nickel (Ni), % 30 to 34
43 to 46
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0
Silicon (Si), % 0 to 0.7
0 to 0.5
Sulfur (S), % 0 to 0.010
0
Titanium (Ti), % 0.25 to 0.65
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5