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ACI-ASTM CB7Cu-1 Steel vs. C63800 Bronze

ACI-ASTM CB7Cu-1 steel belongs to the iron alloys classification, while C63800 bronze belongs to the copper alloys. There are 24 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 C63800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 5.7 to 11
7.9 to 41
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
43
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
460 to 1010

Thermal Properties

Latent Heat of Fusion, J/g 280
240
Melting Completion (Liquidus), °C 1430
1030
Melting Onset (Solidus), °C 1500
1000
Specific Heat Capacity, J/kg-K 480
410
Thermal Conductivity, W/m-K 17
40
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
10
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 13
30
Density, g/cm3 7.8
8.6
Embodied Carbon, kg CO2/kg material 2.6
2.8
Embodied Energy, MJ/kg 38
45
Embodied Water, L/kg 130
330

Common Calculations

Stiffness to Weight: Axial, points 14
7.4
Stiffness to Weight: Bending, points 25
19
Strength to Weight: Axial, points 34 to 48
15 to 33
Strength to Weight: Bending, points 28 to 35
15 to 26
Thermal Diffusivity, mm2/s 4.6
11
Thermal Shock Resistance, points 32 to 45
17 to 36

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.1
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 15.5 to 17.7
0
Cobalt (Co), % 0
0.25 to 0.55
Copper (Cu), % 2.5 to 3.2
92.4 to 95.8
Iron (Fe), % 72.3 to 78.4
0 to 0.2
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0 to 0.7
0 to 0.1
Nickel (Ni), % 3.6 to 4.6
0 to 0.2
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
1.5 to 2.1
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.8
Residuals, % 0
0 to 0.5