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SAE-AISI 1345 Steel vs. ASTM Grade LC2-1 Steel

Both SAE-AISI 1345 steel and ASTM grade LC2-1 steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1345 steel and the bottom bar is ASTM grade LC2-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 210
240
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 23
20
Fatigue Strength, MPa 230 to 390
430
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Tensile Strength: Ultimate (UTS), MPa 590 to 730
810
Tensile Strength: Yield (Proof), MPa 330 to 620
630

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 400
450
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
46
Thermal Expansion, µm/m-K 12
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.1

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
5.0
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.9
Embodied Energy, MJ/kg 19
25
Embodied Water, L/kg 48
60

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 120
150
Resilience: Unit (Modulus of Resilience), kJ/m3 290 to 1040
1040
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 21 to 26
29
Strength to Weight: Bending, points 20 to 23
25
Thermal Diffusivity, mm2/s 14
12
Thermal Shock Resistance, points 19 to 23
24

Alloy Composition

Carbon (C), % 0.43 to 0.48
0 to 0.22
Chromium (Cr), % 0
1.4 to 1.9
Iron (Fe), % 97.2 to 97.8
92.5 to 95.3
Manganese (Mn), % 1.6 to 1.9
0.55 to 0.75
Molybdenum (Mo), % 0
0.3 to 0.6
Nickel (Ni), % 0
2.5 to 3.5
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.15 to 0.35
0 to 0.5
Sulfur (S), % 0 to 0.040
0 to 0.045