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ACI-ASTM CF3 Steel vs. C31400 Bronze

ACI-ASTM CF3 steel belongs to the iron alloys classification, while C31400 bronze belongs to the copper 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 ACI-ASTM CF3 steel and the bottom bar is C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
110
Elongation at Break, % 60
6.8 to 29
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 77
42
Tensile Strength: Ultimate (UTS), MPa 510
270 to 420
Tensile Strength: Yield (Proof), MPa 250
78 to 310

Thermal Properties

Latent Heat of Fusion, J/g 300
200
Maximum Temperature: Mechanical, °C 960
180
Melting Completion (Liquidus), °C 1420
1040
Melting Onset (Solidus), °C 1450
1010
Specific Heat Capacity, J/kg-K 480
380
Thermal Conductivity, W/m-K 16
180
Thermal Expansion, µm/m-K 16
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
42
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
43

Otherwise Unclassified Properties

Base Metal Price, % relative 16
29
Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 3.2
2.6
Embodied Energy, MJ/kg 45
42
Embodied Water, L/kg 150
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 250
26 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 160
28 to 420
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 18
8.7 to 13
Strength to Weight: Bending, points 18
11 to 14
Thermal Diffusivity, mm2/s 4.3
54
Thermal Shock Resistance, points 11
9.6 to 15

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 17 to 21
0
Copper (Cu), % 0
87.5 to 90.5
Iron (Fe), % 62.9 to 75
0 to 0.1
Lead (Pb), % 0
1.3 to 2.5
Manganese (Mn), % 0 to 1.5
0
Molybdenum (Mo), % 0 to 0.5
0
Nickel (Ni), % 8.0 to 12
0 to 0.7
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0 to 2.0
0
Sulfur (S), % 0 to 0.040
0
Zinc (Zn), % 0
5.8 to 11.2
Residuals, % 0
0 to 0.4