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ASTM Grade LC4 Steel vs. ASTM Grade LCC Steel

Both ASTM grade LC4 steel and ASTM grade LCC steel are iron alloys. Both are furnished in the normalized and tempered condition. They have a very high 95% of their average alloy composition in common.

For each property being compared, the top bar is ASTM grade LC4 steel and the bottom bar is ASTM grade LCC steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
170
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 27
25
Fatigue Strength, MPa 230
230
Poisson's Ratio 0.29
0.29
Reduction in Area, % 40
40
Shear Modulus, GPa 73
72
Tensile Strength: Ultimate (UTS), MPa 570
570
Tensile Strength: Yield (Proof), MPa 310
310

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 410
400
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 49
49
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.8
7.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.9
8.4

Otherwise Unclassified Properties

Base Metal Price, % relative 4.6
1.8
Density, g/cm3 7.9
7.8
Embodied Carbon, kg CO2/kg material 1.8
1.4
Embodied Energy, MJ/kg 24
18
Embodied Water, L/kg 54
45

Common Calculations

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

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.25
Iron (Fe), % 93.4 to 95.5
96.9 to 100
Manganese (Mn), % 0.5 to 0.8
0 to 1.2
Nickel (Ni), % 4.0 to 5.0
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
Residuals, % 0
0 to 1.0