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SAE-AISI 4720 Steel vs. CC332G Bronze

SAE-AISI 4720 steel belongs to the iron alloys classification, while CC332G bronze belongs to the copper 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 SAE-AISI 4720 steel and the bottom bar is CC332G bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
130
Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 25
22
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
43
Tensile Strength: Ultimate (UTS), MPa 490
620
Tensile Strength: Yield (Proof), MPa 350
250

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 410
220
Melting Completion (Liquidus), °C 1460
1060
Melting Onset (Solidus), °C 1420
1010
Specific Heat Capacity, J/kg-K 470
440
Thermal Conductivity, W/m-K 39
45
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
11
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
12

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
29
Density, g/cm3 7.9
8.3
Embodied Carbon, kg CO2/kg material 1.6
3.4
Embodied Energy, MJ/kg 21
55
Embodied Water, L/kg 50
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 330
270
Stiffness to Weight: Axial, points 13
7.7
Stiffness to Weight: Bending, points 24
20
Strength to Weight: Axial, points 17
21
Strength to Weight: Bending, points 18
19
Thermal Diffusivity, mm2/s 10
12
Thermal Shock Resistance, points 14
21

Alloy Composition

Aluminum (Al), % 0
8.5 to 10.5
Carbon (C), % 0.17 to 0.22
0
Chromium (Cr), % 0.35 to 0.55
0
Copper (Cu), % 0
80 to 86
Iron (Fe), % 96.7 to 97.8
1.0 to 3.0
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0.5 to 0.7
0 to 2.0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.9 to 1.2
1.5 to 4.0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0 to 0.2
Sulfur (S), % 0 to 0.040
0
Tin (Sn), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.5