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C31400 Bronze vs. ACI-ASTM CN3M Steel

C31400 bronze belongs to the copper alloys classification, while ACI-ASTM CN3M steel belongs to the iron 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 C31400 bronze and the bottom bar is ACI-ASTM CN3M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 6.8 to 29
34
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
80
Tensile Strength: Ultimate (UTS), MPa 270 to 420
500
Tensile Strength: Yield (Proof), MPa 78 to 310
190

Thermal Properties

Latent Heat of Fusion, J/g 200
310
Maximum Temperature: Mechanical, °C 180
1100
Melting Completion (Liquidus), °C 1040
1450
Melting Onset (Solidus), °C 1010
1400
Specific Heat Capacity, J/kg-K 380
470
Thermal Conductivity, W/m-K 180
13
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 43
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 29
31
Density, g/cm3 8.8
8.1
Embodied Carbon, kg CO2/kg material 2.6
5.9
Embodied Energy, MJ/kg 42
80
Embodied Water, L/kg 310
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
130
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
89
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.7 to 13
17
Strength to Weight: Bending, points 11 to 14
17
Thermal Diffusivity, mm2/s 54
3.4
Thermal Shock Resistance, points 9.6 to 15
11

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
20 to 22
Copper (Cu), % 87.5 to 90.5
0
Iron (Fe), % 0 to 0.1
42.4 to 52.5
Lead (Pb), % 1.3 to 2.5
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.5 to 5.5
Nickel (Ni), % 0 to 0.7
23 to 27
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 5.8 to 11.2
0
Residuals, % 0 to 0.4
0