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CC381H Copper-nickel vs. EN 1.4439 Stainless Steel

CC381H copper-nickel belongs to the copper alloys classification, while EN 1.4439 stainless steel belongs to the iron alloys. There are 29 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 CC381H copper-nickel and the bottom bar is EN 1.4439 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
220
Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 20
40
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
79
Tensile Strength: Ultimate (UTS), MPa 380
680
Tensile Strength: Yield (Proof), MPa 140
310

Thermal Properties

Latent Heat of Fusion, J/g 240
290
Maximum Temperature: Mechanical, °C 260
980
Melting Completion (Liquidus), °C 1180
1460
Melting Onset (Solidus), °C 1120
1410
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 30
14
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 6.8
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 40
22
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 5.0
4.5
Embodied Energy, MJ/kg 73
61
Embodied Water, L/kg 280
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
220
Resilience: Unit (Modulus of Resilience), kJ/m3 68
240
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12
24
Strength to Weight: Bending, points 13
22
Thermal Diffusivity, mm2/s 8.4
3.8
Thermal Shock Resistance, points 13
15

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
58.7 to 66.9
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 29 to 31
12.5 to 14.5
Nitrogen (N), % 0
0.12 to 0.22
Phosphorus (P), % 0 to 0.010
0 to 0.045
Silicon (Si), % 0 to 0.1
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.015
Zinc (Zn), % 0 to 0.5
0