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SAE-AISI 4720 Steel vs. CC492K Bronze

SAE-AISI 4720 steel belongs to the iron alloys classification, while CC492K 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 CC492K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
78
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 25
14
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 490
280
Tensile Strength: Yield (Proof), MPa 350
150

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 410
170
Melting Completion (Liquidus), °C 1460
1000
Melting Onset (Solidus), °C 1420
900
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 39
73
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
13
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
13

Otherwise Unclassified Properties

Base Metal Price, % relative 2.9
33
Density, g/cm3 7.9
8.8
Embodied Carbon, kg CO2/kg material 1.6
3.4
Embodied Energy, MJ/kg 21
54
Embodied Water, L/kg 50
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
33
Resilience: Unit (Modulus of Resilience), kJ/m3 330
100
Stiffness to Weight: Axial, points 13
6.8
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 17
8.7
Strength to Weight: Bending, points 18
11
Thermal Diffusivity, mm2/s 10
23
Thermal Shock Resistance, points 14
10

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.17 to 0.22
0
Chromium (Cr), % 0.35 to 0.55
0
Copper (Cu), % 0
83 to 89
Iron (Fe), % 96.7 to 97.8
0 to 0.2
Lead (Pb), % 0
2.5 to 3.5
Manganese (Mn), % 0.5 to 0.7
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0.9 to 1.2
0 to 2.0
Phosphorus (P), % 0 to 0.035
0 to 0.1
Silicon (Si), % 0.15 to 0.35
0 to 0.010
Sulfur (S), % 0 to 0.040
0 to 0.1
Tin (Sn), % 0
6.0 to 8.0
Zinc (Zn), % 0
1.5 to 3.0