SAE-AISI H25 Steel vs. N08221 Nickel

SAE-AISI H25 steel belongs to the iron alloys classification, while N08221 nickel belongs to the nickel alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 H25 steel and the bottom bar is N08221 nickel.

SAE-AISI H25 (T20825) Tungsten Hot-Work Steel UNS N08221 Nickel Alloy

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.28

Shear Modulus, GPa		79
Shear Modulus, GPa		79

Tensile Strength: Ultimate (UTS), MPa		710 to 1620
Tensile Strength: Ultimate (UTS), MPa		610

Thermal Properties

Latent Heat of Fusion, J/g		250
Latent Heat of Fusion, J/g		310

Melting Completion (Liquidus), °C		1750
Melting Completion (Liquidus), °C		1440

Melting Onset (Solidus), °C		1700
Melting Onset (Solidus), °C		1390

Specific Heat Capacity, J/kg-K		420
Specific Heat Capacity, J/kg-K		460

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

Otherwise Unclassified Properties

Base Metal Price, % relative		38
Base Metal Price, % relative		44

Density, g/cm³		9.1
Density, g/cm³		8.3

Embodied Carbon, kg CO₂/kg material		6.2
Embodied Carbon, kg CO₂/kg material		7.9

Embodied Energy, MJ/kg		93
Embodied Energy, MJ/kg		110

Embodied Water, L/kg		83
Embodied Water, L/kg		240

Common Calculations

PREN (Pitting Resistance)		29
PREN (Pitting Resistance)		40

Stiffness to Weight: Axial, points		12
Stiffness to Weight: Axial, points		14

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

Strength to Weight: Axial, points		22 to 50
Strength to Weight: Axial, points		21

Strength to Weight: Bending, points		20 to 34
Strength to Weight: Bending, points		19

Thermal Shock Resistance, points		22 to 49
Thermal Shock Resistance, points		16

Alloy Composition

Aluminum (Al), %		0
Aluminum (Al), %		0 to 0.2

Carbon (C), %		0.22 to 0.32
Carbon (C), %		0 to 0.025

Chromium (Cr), %		3.8 to 4.5
Chromium (Cr), %		20 to 22

Copper (Cu), %		0 to 0.25
Copper (Cu), %		1.5 to 3.0

Iron (Fe), %		77.2 to 81.3
Iron (Fe), %		22 to 33.9

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

Molybdenum (Mo), %		0
Molybdenum (Mo), %		5.0 to 6.5

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		39 to 46

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

Silicon (Si), %		0.15 to 0.4
Silicon (Si), %		0 to 0.050

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

Titanium (Ti), %		0
Titanium (Ti), %		0.6 to 1.0

Tungsten (W), %		14 to 16
Tungsten (W), %		0

Vanadium (V), %		0.4 to 0.6
Vanadium (V), %		0