ASTM Grade LCB Steel vs. Automotive Grey Cast Iron

Both ASTM grade LCB steel and automotive grey cast iron are iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LCB steel and the bottom bar is automotive grey cast iron.

ASTM Grade LCB (J03003) Cast Carbon Steel Automotive Grey Cast Iron

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		180

Elongation at Break, %		27
Elongation at Break, %		9.6 to 14

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		72
Shear Modulus, GPa		69 to 70

Tensile Strength: Ultimate (UTS), MPa		540
Tensile Strength: Ultimate (UTS), MPa		140 to 290

Tensile Strength: Yield (Proof), MPa		270
Tensile Strength: Yield (Proof), MPa		94 to 200

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		260 to 280

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1380 to 1390

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1340 to 1350

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		490

Thermal Conductivity, W/m-K		51
Thermal Conductivity, W/m-K		41 to 43

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		12 to 14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS		7.1
Electrical Conductivity: Equal Volume, % IACS		7.4 to 7.6

Electrical Conductivity: Equal Weight (Specific), % IACS		8.2
Electrical Conductivity: Equal Weight (Specific), % IACS		8.8 to 9.1

Otherwise Unclassified Properties

Base Metal Price, % relative		1.8
Base Metal Price, % relative		1.9 to 3.0

Density, g/cm³		7.8
Density, g/cm³		7.5 to 7.6

Embodied Carbon, kg CO₂/kg material		1.4
Embodied Carbon, kg CO₂/kg material		1.5 to 1.7

Embodied Energy, MJ/kg		18
Embodied Energy, MJ/kg		21 to 24

Embodied Water, L/kg		45
Embodied Water, L/kg		44 to 51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m³		120
Resilience: Ultimate (Unit Rupture Work), MJ/m³		18 to 25

Resilience: Unit (Modulus of Resilience), kJ/m³		200
Resilience: Unit (Modulus of Resilience), kJ/m³		25 to 110

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		5.2 to 11

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		8.0 to 13

Thermal Diffusivity, mm²/s		14
Thermal Diffusivity, mm²/s		11 to 12

Thermal Shock Resistance, points		17
Thermal Shock Resistance, points		4.2 to 8.6