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CC381H Copper-nickel vs. ACI-ASTM CG8M Steel

CC381H copper-nickel belongs to the copper alloys classification, while ACI-ASTM CG8M steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is CC381H copper-nickel and the bottom bar is ACI-ASTM CG8M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 91
180
Elastic (Young's, Tensile) Modulus, GPa 140
200
Elongation at Break, % 20
45
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 52
79
Tensile Strength: Ultimate (UTS), MPa 380
550
Tensile Strength: Yield (Proof), MPa 140
300

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Maximum Temperature: Mechanical, °C 260
1020
Melting Completion (Liquidus), °C 1180
1450
Melting Onset (Solidus), °C 1120
1400
Specific Heat Capacity, J/kg-K 410
470
Thermal Conductivity, W/m-K 30
16
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
20
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 5.0
4.1
Embodied Energy, MJ/kg 73
56
Embodied Water, L/kg 280
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 60
210
Resilience: Unit (Modulus of Resilience), kJ/m3 68
220
Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
25
Strength to Weight: Axial, points 12
19
Strength to Weight: Bending, points 13
19
Thermal Diffusivity, mm2/s 8.4
4.3
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 0 to 0.010
0
Carbon (C), % 0 to 0.030
0 to 0.080
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 64.5 to 69.9
0
Iron (Fe), % 0.5 to 1.5
58.8 to 70
Lead (Pb), % 0 to 0.030
0
Manganese (Mn), % 0.6 to 1.2
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 29 to 31
9.0 to 13
Phosphorus (P), % 0 to 0.010
0 to 0.040
Silicon (Si), % 0 to 0.1
0 to 1.5
Sulfur (S), % 0 to 0.010
0 to 0.040
Zinc (Zn), % 0 to 0.5
0