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SAE-AISI 4340M Steel vs. C11400 Copper

SAE-AISI 4340M steel belongs to the iron alloys classification, while C11400 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4340M steel and the bottom bar is C11400 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 6.0
2.8 to 51
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
43
Shear Strength, MPa 1360
150 to 210
Tensile Strength: Ultimate (UTS), MPa 2340
220 to 400
Tensile Strength: Yield (Proof), MPa 1240
75 to 400

Thermal Properties

Latent Heat of Fusion, J/g 280
210
Maximum Temperature: Mechanical, °C 430
200
Melting Completion (Liquidus), °C 1440
1080
Melting Onset (Solidus), °C 1400
1030
Specific Heat Capacity, J/kg-K 480
390
Thermal Conductivity, W/m-K 38
390
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
100
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
100

Otherwise Unclassified Properties

Base Metal Price, % relative 3.9
32
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 1.9
2.6
Embodied Energy, MJ/kg 26
42
Embodied Water, L/kg 55
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
11 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 4120
24 to 680
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 25
18
Strength to Weight: Axial, points 84
6.8 to 12
Strength to Weight: Bending, points 51
9.1 to 14
Thermal Diffusivity, mm2/s 10
110
Thermal Shock Resistance, points 70
7.8 to 14

Alloy Composition

Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.7 to 1.0
0
Copper (Cu), % 0
99.84 to 99.966
Iron (Fe), % 93.3 to 94.8
0
Manganese (Mn), % 0.65 to 0.9
0
Molybdenum (Mo), % 0.35 to 0.45
0
Nickel (Ni), % 1.7 to 2.0
0
Phosphorus (P), % 0 to 0.012
0
Silicon (Si), % 1.5 to 1.8
0
Silver (Ag), % 0
0.034 to 0.060
Sulfur (S), % 0 to 0.012
0
Vanadium (V), % 0.050 to 0.1
0
Residuals, % 0
0 to 0.1