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SAE-AISI 4140 Steel vs. C17300 Copper

SAE-AISI 4140 steel belongs to the iron alloys classification, while C17300 copper belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 4140 steel and the bottom bar is C17300 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 11 to 26
3.0 to 23
Poisson's Ratio 0.29
0.33
Shear Modulus, GPa 73
45
Shear Strength, MPa 410 to 660
320 to 790
Tensile Strength: Ultimate (UTS), MPa 690 to 1080
500 to 1380
Tensile Strength: Yield (Proof), MPa 590 to 990
160 to 1200

Thermal Properties

Latent Heat of Fusion, J/g 250
230
Maximum Temperature: Mechanical, °C 420
270
Melting Completion (Liquidus), °C 1460
980
Melting Onset (Solidus), °C 1420
870
Specific Heat Capacity, J/kg-K 470
380
Thermal Conductivity, W/m-K 43
110
Thermal Expansion, µm/m-K 13
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.3
22
Electrical Conductivity: Equal Weight (Specific), % IACS 8.4
23

Otherwise Unclassified Properties

Density, g/cm3 7.8
8.8
Embodied Carbon, kg CO2/kg material 1.5
9.4
Embodied Energy, MJ/kg 20
150
Embodied Water, L/kg 51
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 74 to 180
40 to 88
Resilience: Unit (Modulus of Resilience), kJ/m3 920 to 2590
110 to 5410
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 24
19
Strength to Weight: Axial, points 25 to 38
16 to 44
Strength to Weight: Bending, points 22 to 30
16 to 31
Thermal Diffusivity, mm2/s 12
32
Thermal Shock Resistance, points 20 to 32
17 to 48

Alloy Composition

Aluminum (Al), % 0
0 to 0.2
Beryllium (Be), % 0
1.8 to 2.0
Carbon (C), % 0.38 to 0.43
0
Chromium (Cr), % 0.8 to 1.1
0
Copper (Cu), % 0
95.5 to 97.8
Iron (Fe), % 96.8 to 97.8
0 to 0.4
Lead (Pb), % 0
0.2 to 0.6
Manganese (Mn), % 0.75 to 1.0
0
Molybdenum (Mo), % 0.15 to 0.25
0
Nickel (Ni), % 0
0.2 to 0.6
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0.15 to 0.35
0 to 0.2
Sulfur (S), % 0 to 0.040
0
Residuals, % 0
0 to 0.5