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C31400 Bronze vs. ACI-ASTM CB30 Steel

C31400 bronze belongs to the copper alloys classification, while ACI-ASTM CB30 steel belongs to the iron alloys. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C31400 bronze and the bottom bar is ACI-ASTM CB30 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
77
Tensile Strength: Ultimate (UTS), MPa 270 to 420
500
Tensile Strength: Yield (Proof), MPa 78 to 310
230

Thermal Properties

Latent Heat of Fusion, J/g 200
290
Maximum Temperature: Mechanical, °C 180
940
Melting Completion (Liquidus), °C 1040
1430
Melting Onset (Solidus), °C 1010
1380
Specific Heat Capacity, J/kg-K 380
480
Thermal Conductivity, W/m-K 180
21
Thermal Expansion, µm/m-K 18
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 43
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 29
10
Density, g/cm3 8.8
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.3
Embodied Energy, MJ/kg 42
33
Embodied Water, L/kg 310
130

Common Calculations

Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
140
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 8.7 to 13
18
Strength to Weight: Bending, points 11 to 14
18
Thermal Diffusivity, mm2/s 54
5.6
Thermal Shock Resistance, points 9.6 to 15
17

Alloy Composition

Carbon (C), % 0
0 to 0.3
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 87.5 to 90.5
0 to 1.2
Iron (Fe), % 0 to 0.1
72.9 to 82
Lead (Pb), % 1.3 to 2.5
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.7
0 to 2.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0
0 to 0.040
Zinc (Zn), % 5.8 to 11.2
0
Residuals, % 0 to 0.4
0