Grade CW6M Nickel vs. SAE-AISI M7 Steel

Grade CW6M nickel belongs to the nickel alloys classification, while SAE-AISI M7 steel belongs to the iron alloys. There are 19 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade CW6M nickel and the bottom bar is SAE-AISI M7 steel.

Grade CW6M (J30107) Cast Nickel SAE-AISI M7 (T11307) Molybdenum High-Speed Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		220
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		84
Shear Modulus, GPa		77

Tensile Strength: Ultimate (UTS), MPa		560
Tensile Strength: Ultimate (UTS), MPa		760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g		330
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1530
Melting Completion (Liquidus), °C		1560

Melting Onset (Solidus), °C		1470
Melting Onset (Solidus), °C		1510

Specific Heat Capacity, J/kg-K		430
Specific Heat Capacity, J/kg-K		450

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

Otherwise Unclassified Properties

Base Metal Price, % relative		65
Base Metal Price, % relative		18

Density, g/cm³		8.8
Density, g/cm³		8.1

Embodied Carbon, kg CO₂/kg material		13
Embodied Carbon, kg CO₂/kg material		8.9

Embodied Energy, MJ/kg		170
Embodied Energy, MJ/kg		130

Embodied Water, L/kg		300
Embodied Water, L/kg		100

Common Calculations

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		14

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		18
Strength to Weight: Axial, points		26 to 76

Strength to Weight: Bending, points		17
Strength to Weight: Bending, points		23 to 47

Thermal Shock Resistance, points		16
Thermal Shock Resistance, points		24 to 69

Alloy Composition

Carbon (C), %		0 to 0.070
Carbon (C), %		1.0 to 1.1

Chromium (Cr), %		17 to 20
Chromium (Cr), %		3.5 to 4.0

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

Iron (Fe), %		0 to 3.0
Iron (Fe), %		79.8 to 83.8

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		17 to 20
Molybdenum (Mo), %		8.2 to 9.2

Nickel (Ni), %		54.9 to 66
Nickel (Ni), %		0 to 0.3

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

Silicon (Si), %		0 to 1.0
Silicon (Si), %		0.2 to 0.55

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

Tungsten (W), %		0
Tungsten (W), %		1.4 to 2.1

Vanadium (V), %		0
Vanadium (V), %		1.8 to 2.3