SAE-AISI O2 Steel vs. Grade CW12MW Nickel

SAE-AISI O2 steel belongs to the iron alloys classification, while grade CW12MW nickel belongs to the nickel alloys. There are 19 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI O2 steel and the bottom bar is grade CW12MW nickel.

SAE-AISI O2 (T31502) Oil-Hardening Steel Grade CW12MW (J30002) Cast Nickel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		220

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		72
Shear Modulus, GPa		85

Tensile Strength: Ultimate (UTS), MPa		640 to 2050
Tensile Strength: Ultimate (UTS), MPa		560

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		320

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1610

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1560

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		410

Thermal Expansion, µm/m-K		11
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		2.4
Base Metal Price, % relative		70

Density, g/cm³		7.8
Density, g/cm³		9.1

Embodied Carbon, kg CO₂/kg material		1.8
Embodied Carbon, kg CO₂/kg material		13

Embodied Energy, MJ/kg		26
Embodied Energy, MJ/kg		180

Embodied Water, L/kg		50
Embodied Water, L/kg		280

Common Calculations

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

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

Strength to Weight: Axial, points		23 to 73
Strength to Weight: Axial, points		17

Strength to Weight: Bending, points		21 to 46
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		22 to 70
Thermal Shock Resistance, points		16

Alloy Composition

Carbon (C), %		0.85 to 1.0
Carbon (C), %		0 to 0.12

Chromium (Cr), %		0 to 0.5
Chromium (Cr), %		15.5 to 17.5

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

Iron (Fe), %		95 to 97.8
Iron (Fe), %		4.5 to 7.5

Manganese (Mn), %		1.4 to 1.8
Manganese (Mn), %		0 to 1.0

Molybdenum (Mo), %		0 to 0.3
Molybdenum (Mo), %		16 to 18

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		49.2 to 60.1

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

Silicon (Si), %		0 to 0.5
Silicon (Si), %		0 to 1.0

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

Tungsten (W), %		0
Tungsten (W), %		3.8 to 5.3

Vanadium (V), %		0 to 0.3
Vanadium (V), %		0.2 to 0.4