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SAE-AISI 4340M Steel vs. CC494K Bronze

SAE-AISI 4340M steel belongs to the iron alloys classification, while CC494K bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4340M steel and the bottom bar is CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 710
67
Elastic (Young's, Tensile) Modulus, GPa 190
100
Elongation at Break, % 6.0
7.6
Poisson's Ratio 0.29
0.35
Shear Modulus, GPa 72
39
Tensile Strength: Ultimate (UTS), MPa 2340
210
Tensile Strength: Yield (Proof), MPa 1240
94

Thermal Properties

Latent Heat of Fusion, J/g 280
180
Maximum Temperature: Mechanical, °C 430
160
Melting Completion (Liquidus), °C 1440
970
Melting Onset (Solidus), °C 1400
890
Specific Heat Capacity, J/kg-K 480
360
Thermal Conductivity, W/m-K 38
63
Thermal Expansion, µm/m-K 13
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
16
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
16

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
31
Density, g/cm3 7.8
9.1
Embodied Carbon, kg CO2/kg material 1.9
3.1
Embodied Energy, MJ/kg 26
50
Embodied Water, L/kg 55
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
13
Resilience: Unit (Modulus of Resilience), kJ/m3 4120
43
Stiffness to Weight: Axial, points 13
6.4
Stiffness to Weight: Bending, points 25
17
Strength to Weight: Axial, points 84
6.5
Strength to Weight: Bending, points 51
8.8
Thermal Diffusivity, mm2/s 10
19
Thermal Shock Resistance, points 70
7.8

Alloy Composition

Aluminum (Al), % 0
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 1.0
0
Copper (Cu), % 0
78 to 87
Iron (Fe), % 93.3 to 94.8
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Manganese (Mn), % 0.65 to 0.9
0 to 0.2
Molybdenum (Mo), % 0.35 to 0.45
0
Nickel (Ni), % 1.7 to 2.0
0 to 2.0
Phosphorus (P), % 0 to 0.012
0 to 0.1
Silicon (Si), % 1.5 to 1.8
0 to 0.010
Sulfur (S), % 0 to 0.012
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Vanadium (V), % 0.050 to 0.1
0
Zinc (Zn), % 0
0 to 2.0