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SAE-AISI 4145 Steel vs. CC491K Bronze

SAE-AISI 4145 steel belongs to the iron alloys classification, while CC491K bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4145 steel and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 310
73
Elastic (Young's, Tensile) Modulus, GPa 190
110
Elongation at Break, % 16
13
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 73
40
Tensile Strength: Ultimate (UTS), MPa 580
260
Tensile Strength: Yield (Proof), MPa 360
120

Thermal Properties

Latent Heat of Fusion, J/g 250
190
Maximum Temperature: Mechanical, °C 420
160
Melting Completion (Liquidus), °C 1460
980
Melting Onset (Solidus), °C 1420
900
Specific Heat Capacity, J/kg-K 470
370
Thermal Conductivity, W/m-K 42
71
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
15
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
15

Otherwise Unclassified Properties

Base Metal Price, % relative 2.4
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.5
3.1
Embodied Energy, MJ/kg 20
51
Embodied Water, L/kg 51
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
27
Resilience: Unit (Modulus of Resilience), kJ/m3 350
67
Stiffness to Weight: Axial, points 13
6.7
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 21
8.1
Strength to Weight: Bending, points 20
10
Thermal Diffusivity, mm2/s 11
22
Thermal Shock Resistance, points 17
9.3

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Carbon (C), % 0.43 to 0.48
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
81 to 87
Iron (Fe), % 96.7 to 97.7
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
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
4.0 to 6.0
Zinc (Zn), % 0
4.0 to 6.0