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C64800 Bronze vs. SAE-AISI 4340M Steel

C64800 bronze belongs to the copper alloys classification, while SAE-AISI 4340M steel belongs to the iron alloys. There are 29 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 C64800 bronze and the bottom bar is SAE-AISI 4340M steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 8.0
6.0
Poisson's Ratio 0.34
0.29
Shear Modulus, GPa 44
72
Shear Strength, MPa 380
1360
Tensile Strength: Ultimate (UTS), MPa 640
2340
Tensile Strength: Yield (Proof), MPa 630
1240

Thermal Properties

Latent Heat of Fusion, J/g 220
280
Maximum Temperature: Mechanical, °C 200
430
Melting Completion (Liquidus), °C 1090
1440
Melting Onset (Solidus), °C 1030
1400
Specific Heat Capacity, J/kg-K 390
480
Thermal Conductivity, W/m-K 260
38
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 65
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 66
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 33
3.9
Density, g/cm3 8.9
7.8
Embodied Carbon, kg CO2/kg material 2.7
1.9
Embodied Energy, MJ/kg 43
26
Embodied Water, L/kg 310
55

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
120
Resilience: Unit (Modulus of Resilience), kJ/m3 1680
4120
Stiffness to Weight: Axial, points 7.4
13
Stiffness to Weight: Bending, points 18
25
Strength to Weight: Axial, points 20
84
Strength to Weight: Bending, points 19
51
Thermal Diffusivity, mm2/s 75
10
Thermal Shock Resistance, points 23
70

Alloy Composition

Carbon (C), % 0
0.38 to 0.43
Chromium (Cr), % 0 to 0.090
0.7 to 1.0
Cobalt (Co), % 1.0 to 3.0
0
Copper (Cu), % 92.4 to 98.8
0
Iron (Fe), % 0 to 1.0
93.3 to 94.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0
0.65 to 0.9
Molybdenum (Mo), % 0
0.35 to 0.45
Nickel (Ni), % 0 to 0.5
1.7 to 2.0
Phosphorus (P), % 0 to 0.5
0 to 0.012
Silicon (Si), % 0.2 to 1.0
1.5 to 1.8
Sulfur (S), % 0
0 to 0.012
Tin (Sn), % 0 to 0.5
0
Vanadium (V), % 0
0.050 to 0.1
Zinc (Zn), % 0 to 0.5
0
Residuals, % 0 to 0.5
0