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SAE-AISI 4340 Steel vs. CC497K Bronze

SAE-AISI 4340 steel belongs to the iron alloys classification, while CC497K 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 4340 steel and the bottom bar is CC497K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210 to 360
55
Elastic (Young's, Tensile) Modulus, GPa 190
93
Elongation at Break, % 12 to 22
6.7
Poisson's Ratio 0.29
0.36
Shear Modulus, GPa 73
34
Tensile Strength: Ultimate (UTS), MPa 690 to 1280
190
Tensile Strength: Yield (Proof), MPa 470 to 1150
91

Thermal Properties

Latent Heat of Fusion, J/g 250
160
Maximum Temperature: Mechanical, °C 430
130
Melting Completion (Liquidus), °C 1460
870
Melting Onset (Solidus), °C 1420
800
Specific Heat Capacity, J/kg-K 470
330
Thermal Conductivity, W/m-K 44
53
Thermal Expansion, µm/m-K 13
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.5
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.6
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 3.5
29
Density, g/cm3 7.8
9.3
Embodied Carbon, kg CO2/kg material 1.7
3.0
Embodied Energy, MJ/kg 22
48
Embodied Water, L/kg 53
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 170
10
Resilience: Unit (Modulus of Resilience), kJ/m3 590 to 3490
45
Stiffness to Weight: Axial, points 13
5.5
Stiffness to Weight: Bending, points 24
16
Strength to Weight: Axial, points 24 to 45
5.6
Strength to Weight: Bending, points 22 to 33
7.8
Thermal Diffusivity, mm2/s 12
17
Thermal Shock Resistance, points 20 to 38
7.2

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.75
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 0.9
0
Copper (Cu), % 0
67.5 to 77.5
Iron (Fe), % 95.1 to 96.3
0 to 0.25
Lead (Pb), % 0
18 to 23
Manganese (Mn), % 0.6 to 0.8
0 to 0.2
Molybdenum (Mo), % 0.2 to 0.3
0
Nickel (Ni), % 1.7 to 2.0
0.5 to 2.5
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
0 to 2.0