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EN 1.4606 Stainless Steel vs. CC381H Copper-nickel

EN 1.4606 stainless steel belongs to the iron alloys classification, while CC381H copper-nickel belongs to the copper alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 28 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 1.4606 stainless steel and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
140
Elongation at Break, % 23 to 39
20
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 75
52
Tensile Strength: Ultimate (UTS), MPa 600 to 1020
380
Tensile Strength: Yield (Proof), MPa 280 to 630
140

Thermal Properties

Latent Heat of Fusion, J/g 300
240
Maximum Temperature: Mechanical, °C 910
260
Melting Completion (Liquidus), °C 1430
1180
Melting Onset (Solidus), °C 1380
1120
Specific Heat Capacity, J/kg-K 470
410
Thermal Conductivity, W/m-K 14
30
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
6.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 26
40
Density, g/cm3 7.9
8.9
Embodied Carbon, kg CO2/kg material 6.0
5.0
Embodied Energy, MJ/kg 87
73
Embodied Water, L/kg 170
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 190 to 200
60
Resilience: Unit (Modulus of Resilience), kJ/m3 200 to 1010
68
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 21 to 36
12
Strength to Weight: Bending, points 20 to 28
13
Thermal Diffusivity, mm2/s 3.7
8.4
Thermal Shock Resistance, points 21 to 35
13

Alloy Composition

Aluminum (Al), % 0 to 0.35
0 to 0.010
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0 to 0.030
Chromium (Cr), % 13 to 16
0
Copper (Cu), % 0
64.5 to 69.9
Iron (Fe), % 49.2 to 59
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 1.0 to 2.0
0.6 to 1.2
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
29 to 31
Phosphorus (P), % 0 to 0.025
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.015
0 to 0.010
Titanium (Ti), % 1.9 to 2.3
0
Vanadium (V), % 0.1 to 0.5
0
Zinc (Zn), % 0
0 to 0.5