AISI 409 Stainless Steel vs. SAE-AISI H26 Steel

Both AISI 409 stainless steel and SAE-AISI H26 steel are iron alloys. They have 80% of their average alloy composition in common. There are 22 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 AISI 409 stainless steel and the bottom bar is SAE-AISI H26 steel.

AISI 409 (S40900) Stainless Steel SAE-AISI H26 (T20826) Tungsten Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		210

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		75
Shear Modulus, GPa		80

Tensile Strength: Ultimate (UTS), MPa		420
Tensile Strength: Ultimate (UTS), MPa		720 to 2100

Thermal Properties

Latent Heat of Fusion, J/g		270
Latent Heat of Fusion, J/g		240

Melting Completion (Liquidus), °C		1450
Melting Completion (Liquidus), °C		1810

Melting Onset (Solidus), °C		1400
Melting Onset (Solidus), °C		1760

Specific Heat Capacity, J/kg-K		480
Specific Heat Capacity, J/kg-K		410

Thermal Conductivity, W/m-K		25
Thermal Conductivity, W/m-K		22

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

Otherwise Unclassified Properties

Base Metal Price, % relative		6.5
Base Metal Price, % relative		45

Density, g/cm³		7.7
Density, g/cm³		9.3

Embodied Carbon, kg CO₂/kg material		2.0
Embodied Carbon, kg CO₂/kg material		8.1

Embodied Energy, MJ/kg		28
Embodied Energy, MJ/kg		120

Embodied Water, L/kg		94
Embodied Water, L/kg		90

Common Calculations

PREN (Pitting Resistance)		11
PREN (Pitting Resistance)		34

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

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		21

Strength to Weight: Axial, points		15
Strength to Weight: Axial, points		22 to 63

Strength to Weight: Bending, points		16
Strength to Weight: Bending, points		19 to 39

Thermal Diffusivity, mm²/s		6.7
Thermal Diffusivity, mm²/s		5.6

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		22 to 63

Alloy Composition

Carbon (C), %		0 to 0.080
Carbon (C), %		0.45 to 0.55

Chromium (Cr), %		10.5 to 11.7
Chromium (Cr), %		3.8 to 4.5

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

Iron (Fe), %		84.9 to 89.5
Iron (Fe), %		73.3 to 77.5

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

Nickel (Ni), %		0 to 0.5
Nickel (Ni), %		0 to 0.3

Phosphorus (P), %		0 to 0.045
Phosphorus (P), %		0 to 0.030

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

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

Titanium (Ti), %		0 to 0.75
Titanium (Ti), %		0

Tungsten (W), %		0
Tungsten (W), %		17.3 to 19

Vanadium (V), %		0
Vanadium (V), %		0.75 to 1.3