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ACI-ASTM CB7Cu-1 Steel vs. C72150 Copper-nickel

ACI-ASTM CB7Cu-1 steel belongs to the iron alloys classification, while C72150 copper-nickel belongs to the copper 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 ACI-ASTM CB7Cu-1 steel and the bottom bar is C72150 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 300 to 420
99
Elastic (Young's, Tensile) Modulus, GPa 190
150
Elongation at Break, % 5.7 to 11
29
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
55
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
490
Tensile Strength: Yield (Proof), MPa 760 to 1180
210

Thermal Properties

Latent Heat of Fusion, J/g 280
250
Melting Completion (Liquidus), °C 1430
1210
Melting Onset (Solidus), °C 1500
1250
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 17
22
Thermal Expansion, µm/m-K 11
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
3.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
3.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
45
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 2.6
6.1
Embodied Energy, MJ/kg 38
88
Embodied Water, L/kg 130
270

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
150
Stiffness to Weight: Axial, points 14
9.1
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 34 to 48
15
Strength to Weight: Bending, points 28 to 35
15
Thermal Diffusivity, mm2/s 4.6
6.0
Thermal Shock Resistance, points 32 to 45
18

Alloy Composition

Carbon (C), % 0 to 0.070
0 to 0.1
Chromium (Cr), % 15.5 to 17.7
0
Copper (Cu), % 2.5 to 3.2
52.5 to 57
Iron (Fe), % 72.3 to 78.4
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.7
0 to 0.050
Nickel (Ni), % 3.6 to 4.6
43 to 46
Niobium (Nb), % 0 to 0.35
0
Nitrogen (N), % 0 to 0.050
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.5