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SAE-AISI 1078 Steel vs. C14181 Copper

SAE-AISI 1078 steel belongs to the iron alloys classification, while C14181 copper belongs to the copper alloys. There are 26 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1078 steel and the bottom bar is C14181 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 11 to 14
15
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
43
Tensile Strength: Ultimate (UTS), MPa 730 to 780
210
Tensile Strength: Yield (Proof), MPa 430 to 570
130

Thermal Properties

Latent Heat of Fusion, J/g 250
210
Maximum Temperature: Mechanical, °C 400
200
Melting Completion (Liquidus), °C 1460
1080
Melting Onset (Solidus), °C 1420
1080
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 49
380
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.8
9.0
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 45
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 90
28
Resilience: Unit (Modulus of Resilience), kJ/m3 490 to 860
69
Stiffness to Weight: Axial, points 13
7.2
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 26 to 28
6.5
Strength to Weight: Bending, points 23 to 24
8.8
Thermal Diffusivity, mm2/s 13
110
Thermal Shock Resistance, points 25 to 26
7.4

Alloy Composition

Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0.72 to 0.85
0 to 0.0050
Copper (Cu), % 0
99.9 to 100
Iron (Fe), % 98.5 to 99
0
Lead (Pb), % 0
0 to 0.0020
Manganese (Mn), % 0.3 to 0.6
0
Phosphorus (P), % 0 to 0.040
0 to 0.0020
Sulfur (S), % 0 to 0.050
0
Zinc (Zn), % 0
0 to 0.0020