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ASTM Grade LC3 Steel vs. SAE-AISI 1078 Steel

Both ASTM grade LC3 steel and SAE-AISI 1078 steel are iron alloys. They have a very high 96% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC3 steel and the bottom bar is SAE-AISI 1078 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
220 to 230
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
11 to 14
Fatigue Strength, MPa 230
270 to 350
Poisson's Ratio 0.29
0.29
Reduction in Area, % 40
34 to 45
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 570
730 to 780
Tensile Strength: Yield (Proof), MPa 310
430 to 570

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
49
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 23
18
Embodied Water, L/kg 52
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
77 to 90
Resilience: Unit (Modulus of Resilience), kJ/m3 260
490 to 860
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
26 to 28
Strength to Weight: Bending, points 19
23 to 24
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 17
25 to 26

Alloy Composition

Carbon (C), % 0 to 0.15
0.72 to 0.85
Iron (Fe), % 94.4 to 96.5
98.5 to 99
Manganese (Mn), % 0.5 to 0.8
0.3 to 0.6
Nickel (Ni), % 3.0 to 4.0
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.6
0
Sulfur (S), % 0 to 0.045
0 to 0.050