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CC381H Copper-nickel vs. EN 1.4865 Stainless Steel

CC381H copper-nickel belongs to the copper alloys classification, while EN 1.4865 stainless steel belongs to the iron alloys. They have a modest 32% 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 (3, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is EN 1.4865 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
140
Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 20
6.8
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
76
Tensile Strength: Ultimate (UTS), MPa 380
470
Tensile Strength: Yield (Proof), MPa 140
250

Thermal Properties

Latent Heat of Fusion, J/g 240
320
Maximum Temperature: Mechanical, °C 260
1020
Melting Completion (Liquidus), °C 1180
1380
Melting Onset (Solidus), °C 1120
1330
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 30
12
Thermal Expansion, µm/m-K 16
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 40
33
Density, g/cm3 8.9
8.0
Embodied Carbon, kg CO2/kg material 5.0
5.8
Embodied Energy, MJ/kg 73
81
Embodied Water, L/kg 280
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
27
Resilience: Unit (Modulus of Resilience), kJ/m3 68
160
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12
16
Strength to Weight: Bending, points 13
17
Thermal Diffusivity, mm2/s 8.4
3.1
Thermal Shock Resistance, points 13
11

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0.3 to 0.5
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
34.4 to 44.7
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0 to 2.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 29 to 31
36 to 39
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
1.0 to 2.5
Sulfur (S), % 0 to 0.010
0 to 0.030
Zinc (Zn), % 0 to 0.5
0