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ACI-ASTM CB7Cu-1 Steel vs. C71000 Copper-nickel

ACI-ASTM CB7Cu-1 steel belongs to the iron alloys classification, while C71000 copper-nickel belongs to the copper alloys. There are 23 material properties with values for both materials. Properties with values for just one material (11, 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 C71000 copper-nickel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
130
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 76
49
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
320 to 560

Thermal Properties

Latent Heat of Fusion, J/g 280
230
Melting Completion (Liquidus), °C 1430
1200
Melting Onset (Solidus), °C 1500
1150
Specific Heat Capacity, J/kg-K 480
400
Thermal Conductivity, W/m-K 17
43
Thermal Expansion, µm/m-K 11
15

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
6.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
6.6

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 2.6
4.3
Embodied Energy, MJ/kg 38
63
Embodied Water, L/kg 130
290

Common Calculations

Stiffness to Weight: Axial, points 14
8.2
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 34 to 48
10 to 18
Strength to Weight: Bending, points 28 to 35
12 to 17
Thermal Diffusivity, mm2/s 4.6
12
Thermal Shock Resistance, points 32 to 45
12 to 20

Alloy Composition

Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 15.5 to 17.7
0
Copper (Cu), % 2.5 to 3.2
73.5 to 80.5
Iron (Fe), % 72.3 to 78.4
0.5 to 1.0
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.7
0 to 1.0
Nickel (Ni), % 3.6 to 4.6
19 to 23
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
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 1.0
Residuals, % 0
0 to 0.5