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SAE-AISI 1140 Steel vs. C18200 Copper

SAE-AISI 1140 steel belongs to the iron alloys classification, while C18200 copper belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1140 steel and the bottom bar is C18200 copper.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
120
Elongation at Break, % 14 to 18
11 to 40
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 72
44
Shear Strength, MPa 370 to 420
210 to 320
Tensile Strength: Ultimate (UTS), MPa 600 to 700
310 to 530
Tensile Strength: Yield (Proof), MPa 340 to 570
97 to 450

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
1070
Specific Heat Capacity, J/kg-K 470
390
Thermal Conductivity, W/m-K 51
320
Thermal Expansion, µm/m-K 13
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
80
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
81

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
31
Density, g/cm3 7.8
8.9
Embodied Carbon, kg CO2/kg material 1.4
2.6
Embodied Energy, MJ/kg 18
41
Embodied Water, L/kg 46
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 89 to 93
43 to 96
Resilience: Unit (Modulus of Resilience), kJ/m3 310 to 870
40 to 860
Stiffness to Weight: Axial, points 13
7.3
Stiffness to Weight: Bending, points 24
18
Strength to Weight: Axial, points 21 to 25
9.6 to 16
Strength to Weight: Bending, points 20 to 22
11 to 16
Thermal Diffusivity, mm2/s 14
93
Thermal Shock Resistance, points 18 to 21
11 to 18

Alloy Composition

Carbon (C), % 0.37 to 0.44
0
Chromium (Cr), % 0
0.6 to 1.2
Copper (Cu), % 0
98.6 to 99.4
Iron (Fe), % 98.4 to 98.9
0 to 0.1
Lead (Pb), % 0
0 to 0.050
Manganese (Mn), % 0.7 to 1.0
0
Phosphorus (P), % 0 to 0.040
0
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0.080 to 0.13
0