SAE-AISI H22 Steel vs. Grade N7M Nickel

SAE-AISI H22 steel belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel 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 SAE-AISI H22 steel and the bottom bar is grade N7M nickel.

SAE-AISI H22 (T20822) Tungsten Hot-Work Steel Grade N7M (J30007) Cast Nickel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.31

Shear Modulus, GPa		77
Shear Modulus, GPa		85

Tensile Strength: Ultimate (UTS), MPa		700 to 1920
Tensile Strength: Ultimate (UTS), MPa		590

Thermal Properties

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

Melting Completion (Liquidus), °C		1670
Melting Completion (Liquidus), °C		1650

Melting Onset (Solidus), °C		1620
Melting Onset (Solidus), °C		1590

Specific Heat Capacity, J/kg-K		440
Specific Heat Capacity, J/kg-K		390

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		9.9

Otherwise Unclassified Properties

Base Metal Price, % relative		28
Base Metal Price, % relative		75

Density, g/cm³		8.7
Density, g/cm³		9.3

Embodied Carbon, kg CO₂/kg material		4.9
Embodied Carbon, kg CO₂/kg material		16

Embodied Energy, MJ/kg		73
Embodied Energy, MJ/kg		200

Embodied Water, L/kg		72
Embodied Water, L/kg		270

Common Calculations

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

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

Strength to Weight: Axial, points		22 to 61
Strength to Weight: Axial, points		18

Strength to Weight: Bending, points		20 to 39
Strength to Weight: Bending, points		17

Thermal Shock Resistance, points		22 to 60
Thermal Shock Resistance, points		19

Alloy Composition

Carbon (C), %		0.3 to 0.4
Carbon (C), %		0 to 0.070

Chromium (Cr), %		1.8 to 3.8
Chromium (Cr), %		0 to 1.0

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

Iron (Fe), %		82.2 to 87.4
Iron (Fe), %		0 to 3.0

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

Molybdenum (Mo), %		0
Molybdenum (Mo), %		30 to 33

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		60.9 to 70

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

Silicon (Si), %		0.15 to 0.4
Silicon (Si), %		0 to 1.0

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

Tungsten (W), %		10 to 11.8
Tungsten (W), %		0

Vanadium (V), %		0.25 to 0.5
Vanadium (V), %		0