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SAE-AISI 1080 Steel vs. ACI-ASTM CD3MWCuN Steel

Both SAE-AISI 1080 steel and ACI-ASTM CD3MWCuN steel are iron alloys. They have 62% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1080 steel and the bottom bar is ACI-ASTM CD3MWCuN steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
29
Fatigue Strength, MPa 300 to 360
370
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 72
80
Tensile Strength: Ultimate (UTS), MPa 770 to 870
790
Tensile Strength: Yield (Proof), MPa 480 to 590
500

Thermal Properties

Latent Heat of Fusion, J/g 250
300
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
16
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 9.6
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 11
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
22
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
4.2
Embodied Energy, MJ/kg 19
58
Embodied Water, L/kg 46
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 80 to 84
200
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 920
620
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
28
Strength to Weight: Bending, points 24 to 26
24
Thermal Diffusivity, mm2/s 14
4.2
Thermal Shock Resistance, points 25 to 29
22

Alloy Composition

Carbon (C), % 0.75 to 0.88
0 to 0.030
Chromium (Cr), % 0
24 to 26
Copper (Cu), % 0
0.5 to 1.0
Iron (Fe), % 98.1 to 98.7
56.6 to 65.3
Manganese (Mn), % 0.6 to 0.9
0 to 1.5
Molybdenum (Mo), % 0
3.0 to 4.0
Nickel (Ni), % 0
6.5 to 8.5
Nitrogen (N), % 0
0.2 to 0.3
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.025
Tungsten (W), % 0
0.5 to 1.0