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C64800 Bronze vs. SAE-AISI 4720 Steel

C64800 bronze belongs to the copper alloys classification, while SAE-AISI 4720 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is C64800 bronze and the bottom bar is SAE-AISI 4720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 8.0
25
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
73
Shear Strength, MPa 380
310
Tensile Strength: Ultimate (UTS), MPa 640
490
Tensile Strength: Yield (Proof), MPa 630
350

Thermal Properties

Latent Heat of Fusion, J/g 220
250
Maximum Temperature: Mechanical, °C 200
410
Melting Completion (Liquidus), °C 1090
1460
Melting Onset (Solidus), °C 1030
1420
Specific Heat Capacity, J/kg-K 390
470
Thermal Conductivity, W/m-K 260
39
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 65
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 66
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 33
2.9
Density, g/cm3 8.9
7.9
Embodied Carbon, kg CO2/kg material 2.7
1.6
Embodied Energy, MJ/kg 43
21
Embodied Water, L/kg 310
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
110
Resilience: Unit (Modulus of Resilience), kJ/m3 1680
330
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
24
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 19
18
Thermal Diffusivity, mm2/s 75
10
Thermal Shock Resistance, points 23
14

Alloy Composition

Carbon (C), % 0
0.17 to 0.22
Chromium (Cr), % 0 to 0.090
0.35 to 0.55
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0
Iron (Fe), % 0 to 1.0
96.7 to 97.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.5 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Nickel (Ni), % 0 to 0.5
0.9 to 1.2
Phosphorus (P), % 0 to 0.5
0 to 0.035
Silicon (Si), % 0.2 to 1.0
0.15 to 0.35
Sulfur (S), % 0
0 to 0.040
Tin (Sn), % 0 to 0.5
0
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0