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ASTM Grade LC3 Steel vs. ASTM Grade LC1 Steel

Both ASTM grade LC3 steel and ASTM grade LC1 steel are iron alloys. Both are furnished in the normalized and tempered condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is ASTM grade LC3 steel and the bottom bar is ASTM grade LC1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
27
Fatigue Strength, MPa 230
200
Poisson's Ratio 0.29
0.29
Reduction in Area, % 40
40
Shear Modulus, GPa 73
73
Tensile Strength: Ultimate (UTS), MPa 570
540
Tensile Strength: Yield (Proof), MPa 310
270

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
410
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 52
50
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.6
7.2
Electrical Conductivity: Equal Weight (Specific), % IACS 8.7
8.2

Otherwise Unclassified Properties

Base Metal Price, % relative 4.0
2.4
Density, g/cm3 7.9
7.9
Embodied Carbon, kg CO2/kg material 1.7
1.5
Embodied Energy, MJ/kg 23
20
Embodied Water, L/kg 52
47

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
120
Resilience: Unit (Modulus of Resilience), kJ/m3 260
200
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20
19
Strength to Weight: Bending, points 19
19
Thermal Diffusivity, mm2/s 14
13
Thermal Shock Resistance, points 17
16

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.25
Iron (Fe), % 94.4 to 96.5
97.6 to 99.05
Manganese (Mn), % 0.5 to 0.8
0.5 to 0.8
Molybdenum (Mo), % 0
0.45 to 0.65
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 to 0.6
Sulfur (S), % 0 to 0.045
0 to 0.045