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ACI-ASTM CB7Cu-1 Steel vs. C95820 Bronze

ACI-ASTM CB7Cu-1 steel belongs to the iron alloys classification, while C95820 bronze belongs to the copper alloys. There are 27 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 C95820 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 5.7 to 11
15
Poisson's Ratio 0.28
0.34
Shear Modulus, GPa 76
44
Tensile Strength: Ultimate (UTS), MPa 960 to 1350
730
Tensile Strength: Yield (Proof), MPa 760 to 1180
310

Thermal Properties

Latent Heat of Fusion, J/g 280
230
Melting Completion (Liquidus), °C 1430
1080
Melting Onset (Solidus), °C 1500
1020
Specific Heat Capacity, J/kg-K 480
440
Thermal Conductivity, W/m-K 17
38
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
29
Density, g/cm3 7.8
8.3
Embodied Carbon, kg CO2/kg material 2.6
3.5
Embodied Energy, MJ/kg 38
56
Embodied Water, L/kg 130
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 120
86
Resilience: Unit (Modulus of Resilience), kJ/m3 1500 to 3590
400
Stiffness to Weight: Axial, points 14
8.0
Stiffness to Weight: Bending, points 25
20
Strength to Weight: Axial, points 34 to 48
24
Strength to Weight: Bending, points 28 to 35
22
Thermal Diffusivity, mm2/s 4.6
11
Thermal Shock Resistance, points 32 to 45
25

Alloy Composition

Aluminum (Al), % 0
9.0 to 10
Carbon (C), % 0 to 0.070
0
Chromium (Cr), % 15.5 to 17.7
0
Copper (Cu), % 2.5 to 3.2
77.5 to 82.5
Iron (Fe), % 72.3 to 78.4
4.0 to 5.0
Lead (Pb), % 0
0 to 0.020
Manganese (Mn), % 0 to 0.7
0 to 1.5
Nickel (Ni), % 3.6 to 4.6
4.5 to 5.8
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 0.1
Sulfur (S), % 0 to 0.030
0
Tin (Sn), % 0
0 to 0.020
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.8