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C31400 Bronze vs. ACI-ASTM CK3MCuN Steel

C31400 bronze belongs to the copper alloys classification, while ACI-ASTM CK3MCuN 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 CK3MCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 6.8 to 29
39
Poisson's Ratio 0.33
0.28
Shear Modulus, GPa 42
80
Tensile Strength: Ultimate (UTS), MPa 270 to 420
620
Tensile Strength: Yield (Proof), MPa 78 to 310
290

Thermal Properties

Latent Heat of Fusion, J/g 200
300
Maximum Temperature: Mechanical, °C 180
1090
Melting Completion (Liquidus), °C 1040
1460
Melting Onset (Solidus), °C 1010
1350
Specific Heat Capacity, J/kg-K 380
460
Thermal Conductivity, W/m-K 180
12
Thermal Expansion, µm/m-K 18
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 43
2.1

Otherwise Unclassified Properties

Base Metal Price, % relative 29
29
Density, g/cm3 8.8
8.0
Embodied Carbon, kg CO2/kg material 2.6
5.6
Embodied Energy, MJ/kg 42
76
Embodied Water, L/kg 310
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 26 to 59
200
Resilience: Unit (Modulus of Resilience), kJ/m3 28 to 420
210
Stiffness to Weight: Axial, points 7.1
14
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 8.7 to 13
21
Strength to Weight: Bending, points 11 to 14
20
Thermal Diffusivity, mm2/s 54
3.2
Thermal Shock Resistance, points 9.6 to 15
14

Alloy Composition

Carbon (C), % 0
0 to 0.025
Chromium (Cr), % 0
19.5 to 20.5
Copper (Cu), % 87.5 to 90.5
0.5 to 1.0
Iron (Fe), % 0 to 0.1
49.5 to 56.3
Lead (Pb), % 1.3 to 2.5
0
Manganese (Mn), % 0
0 to 1.2
Molybdenum (Mo), % 0
6.0 to 7.0
Nickel (Ni), % 0 to 0.7
17.5 to 19.5
Nitrogen (N), % 0
0.18 to 0.24
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.010
Zinc (Zn), % 5.8 to 11.2
0
Residuals, % 0 to 0.4
0