ASTM Grade LC9 Steel vs. SAE-AISI T8 Steel

Both ASTM grade LC9 steel and SAE-AISI T8 steel are iron alloys. They have 74% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.

For each property being compared, the top bar is ASTM grade LC9 steel and the bottom bar is SAE-AISI T8 steel.

ASTM Grade LC9 (J31300) Cast Nickel Steel SAE-AISI T8 (T12008) Tungsten High-Speed Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		73
Shear Modulus, GPa		78

Tensile Strength: Ultimate (UTS), MPa		660
Tensile Strength: Ultimate (UTS), MPa		780 to 2140

Thermal Properties

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

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1730

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1670

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		420

Thermal Expansion, µm/m-K		13
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		8.0
Base Metal Price, % relative		45

Density, g/cm³		7.9
Density, g/cm³		9.0

Embodied Carbon, kg CO₂/kg material		2.3
Embodied Carbon, kg CO₂/kg material		10

Embodied Energy, MJ/kg		31
Embodied Energy, MJ/kg		160

Embodied Water, L/kg		65
Embodied Water, L/kg		120

Common Calculations

Stiffness to Weight: Axial, points		13
Stiffness to Weight: Axial, points		12

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		23
Strength to Weight: Axial, points		24 to 66

Strength to Weight: Bending, points		21
Strength to Weight: Bending, points		21 to 41

Thermal Shock Resistance, points		20
Thermal Shock Resistance, points		24 to 66

Alloy Composition

Carbon (C), %		0 to 0.13
Carbon (C), %		0.75 to 0.85

Chromium (Cr), %		0 to 0.5
Chromium (Cr), %		3.8 to 4.5

Cobalt (Co), %		0
Cobalt (Co), %		4.3 to 5.8

Copper (Cu), %		0 to 0.3
Copper (Cu), %		0 to 0.25

Iron (Fe), %		87.4 to 91.5
Iron (Fe), %		69.3 to 75.4

Manganese (Mn), %		0 to 0.9
Manganese (Mn), %		0.2 to 0.4

Molybdenum (Mo), %		0 to 0.2
Molybdenum (Mo), %		0.4 to 1.0

Nickel (Ni), %		8.5 to 10
Nickel (Ni), %		0 to 0.3

Phosphorus (P), %		0 to 0.040
Phosphorus (P), %		0 to 0.030

Silicon (Si), %		0 to 0.45
Silicon (Si), %		0.2 to 0.4

Sulfur (S), %		0 to 0.045
Sulfur (S), %		0 to 0.030

Tungsten (W), %		0
Tungsten (W), %		13.3 to 14.8

Vanadium (V), %		0 to 0.030
Vanadium (V), %		1.8 to 2.4