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ASTM Grade LC2-1 Steel vs. SAE-AISI 1045 Steel

Both ASTM grade LC2-1 steel and SAE-AISI 1045 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC2-1 steel and the bottom bar is SAE-AISI 1045 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 240
180 to 190
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 20
13 to 18
Fatigue Strength, MPa 430
220 to 370
Poisson's Ratio 0.29
0.29
Reduction in Area, % 34
40 to 51
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 810
620 to 680
Tensile Strength: Yield (Proof), MPa 630
330 to 580

Thermal Properties

Latent Heat of Fusion, J/g 260
250
Maximum Temperature: Mechanical, °C 450
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 46
51
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.0
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.1
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 5.0
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.9
1.4
Embodied Energy, MJ/kg 25
18
Embodied Water, L/kg 60
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 150
84 to 93
Resilience: Unit (Modulus of Resilience), kJ/m3 1040
300 to 900
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
22 to 24
Strength to Weight: Bending, points 25
21 to 22
Thermal Diffusivity, mm2/s 12
14
Thermal Shock Resistance, points 24
20 to 22

Alloy Composition

Carbon (C), % 0 to 0.22
0.43 to 0.5
Chromium (Cr), % 1.4 to 1.9
0
Iron (Fe), % 92.5 to 95.3
98.5 to 99
Manganese (Mn), % 0.55 to 0.75
0.6 to 0.9
Molybdenum (Mo), % 0.3 to 0.6
0
Nickel (Ni), % 2.5 to 3.5
0
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 0.5
0
Sulfur (S), % 0 to 0.045
0 to 0.050