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SAE-AISI 4320 Steel vs. C83800 Bronze

SAE-AISI 4320 steel belongs to the iron alloys classification, while C83800 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4320 steel and the bottom bar is C83800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 21 to 29
20
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
39
Tensile Strength: Ultimate (UTS), MPa 570 to 790
230
Tensile Strength: Yield (Proof), MPa 430 to 460
110

Thermal Properties

Latent Heat of Fusion, J/g 250
180
Maximum Temperature: Mechanical, °C 420
160
Melting Completion (Liquidus), °C 1460
1000
Melting Onset (Solidus), °C 1420
840
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 46
72
Thermal Expansion, µm/m-K 11
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.4
15
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
15

Otherwise Unclassified Properties

Base Metal Price, % relative 3.4
30
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.7
2.9
Embodied Energy, MJ/kg 22
47
Embodied Water, L/kg 52
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140 to 150
39
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 560
53
Stiffness to Weight: Axial, points 13
6.6
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 20 to 28
7.4
Strength to Weight: Bending, points 19 to 24
9.6
Thermal Diffusivity, mm2/s 13
22
Thermal Shock Resistance, points 19 to 27
8.6

Alloy Composition

Aluminum (Al), % 0
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.17 to 0.22
0
Chromium (Cr), % 0.4 to 0.6
0
Copper (Cu), % 0
82 to 83.8
Iron (Fe), % 95.8 to 97
0 to 0.3
Lead (Pb), % 0
5.0 to 7.0
Manganese (Mn), % 0.45 to 0.65
0
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.7 to 2.0
0 to 1.0
Phosphorus (P), % 0 to 0.035
0 to 1.5
Silicon (Si), % 0.15 to 0.35
0 to 0.0050
Sulfur (S), % 0 to 0.040
0 to 0.080
Tin (Sn), % 0
3.3 to 4.2
Zinc (Zn), % 0
5.0 to 8.0
Residuals, % 0
0 to 0.7