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CC381H Copper-nickel vs. EN 1.4418 Stainless Steel

CC381H copper-nickel belongs to the copper alloys classification, while EN 1.4418 stainless steel belongs to the iron alloys. There are 28 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is EN 1.4418 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 20
16 to 20
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
77
Tensile Strength: Ultimate (UTS), MPa 380
860 to 1000
Tensile Strength: Yield (Proof), MPa 140
540 to 790

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 260
870
Melting Completion (Liquidus), °C 1180
1450
Melting Onset (Solidus), °C 1120
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 16
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 40
13
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.0
2.8
Embodied Energy, MJ/kg 73
39
Embodied Water, L/kg 280
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
130 to 170
Resilience: Unit (Modulus of Resilience), kJ/m3 68
730 to 1590
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12
31 to 36
Strength to Weight: Bending, points 13
26 to 28
Thermal Diffusivity, mm2/s 8.4
4.0
Thermal Shock Resistance, points 13
31 to 36

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
73.2 to 80.2
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0 to 1.5
Molybdenum (Mo), % 0
0.8 to 1.5
Nickel (Ni), % 29 to 31
4.0 to 6.0
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 0.7
Sulfur (S), % 0 to 0.010
0 to 0.015
Zinc (Zn), % 0 to 0.5
0