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ACI-ASTM CD4MCu Steel vs. CC381H Copper-nickel

ACI-ASTM CD4MCu steel belongs to the iron alloys classification, while CC381H copper-nickel belongs to the copper alloys. There are 28 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 ACI-ASTM CD4MCu steel and the bottom bar is CC381H copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
140
Elongation at Break, % 18
20
Poisson's Ratio 0.27
0.33
Shear Modulus, GPa 79
52
Tensile Strength: Ultimate (UTS), MPa 770
380
Tensile Strength: Yield (Proof), MPa 550
140

Thermal Properties

Latent Heat of Fusion, J/g 300
240
Maximum Temperature: Mechanical, °C 1100
260
Melting Completion (Liquidus), °C 1430
1180
Melting Onset (Solidus), °C 1380
1120
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 17
30
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 18
40
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 3.5
5.0
Embodied Energy, MJ/kg 49
73
Embodied Water, L/kg 180
280

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
60
Resilience: Unit (Modulus of Resilience), kJ/m3 760
68
Stiffness to Weight: Axial, points 14
8.6
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 28
12
Strength to Weight: Bending, points 24
13
Thermal Diffusivity, mm2/s 4.5
8.4
Thermal Shock Resistance, points 21
13

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 24.5 to 26.5
0
Copper (Cu), % 2.8 to 3.3
64.5 to 69.9
Iron (Fe), % 59.9 to 66.3
0.5 to 1.5
Lead (Pb), % 0
0 to 0.030
Manganese (Mn), % 0 to 1.0
0.6 to 1.2
Molybdenum (Mo), % 1.8 to 2.3
0
Nickel (Ni), % 4.8 to 6.0
29 to 31
Phosphorus (P), % 0 to 0.040
0 to 0.010
Silicon (Si), % 0 to 1.0
0 to 0.1
Sulfur (S), % 0 to 0.040
0 to 0.010
Zinc (Zn), % 0
0 to 0.5