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CC381H Copper-nickel vs. EN 1.4421 Stainless Steel

CC381H copper-nickel belongs to the copper alloys classification, while EN 1.4421 stainless steel belongs to the iron alloys. 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 CC381H copper-nickel and the bottom bar is EN 1.4421 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 20
11 to 17
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
77
Tensile Strength: Ultimate (UTS), MPa 380
880 to 1100
Tensile Strength: Yield (Proof), MPa 140
620 to 950

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 260
870
Melting Completion (Liquidus), °C 1180
1440
Melting Onset (Solidus), °C 1120
1400
Specific Heat Capacity, J/kg-K 410
480
Thermal Conductivity, W/m-K 30
16
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
12
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 5.0
2.6
Embodied Energy, MJ/kg 73
36
Embodied Water, L/kg 280
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
120 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 68
960 to 2270
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12
31 to 39
Strength to Weight: Bending, points 13
26 to 30
Thermal Diffusivity, mm2/s 8.4
4.4
Thermal Shock Resistance, points 13
31 to 39

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 0
15.5 to 17.5
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
74.4 to 80.5
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.7
Nickel (Ni), % 29 to 31
4.0 to 5.5
Phosphorus (P), % 0 to 0.010
0 to 0.035
Silicon (Si), % 0 to 0.1
0 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.020
Zinc (Zn), % 0 to 0.5
0