S38815 Stainless Steel vs. SAE-AISI H25 Steel

Both S38815 stainless steel and SAE-AISI H25 steel are iron alloys. They have 67% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.

For each property being compared, the top bar is S38815 stainless steel and the bottom bar is SAE-AISI H25 steel.

UNS S38815 Stainless Steel SAE-AISI H25 (T20825) Tungsten Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa		190
Elastic (Young's, Tensile) Modulus, GPa		200

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		74
Shear Modulus, GPa		79

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

Thermal Properties

Latent Heat of Fusion, J/g		370
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		1360
Melting Completion (Liquidus), °C		1750

Melting Onset (Solidus), °C		1310
Melting Onset (Solidus), °C		1700

Specific Heat Capacity, J/kg-K		500
Specific Heat Capacity, J/kg-K		420

Thermal Expansion, µm/m-K		15
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		19
Base Metal Price, % relative		38

Density, g/cm³		7.5
Density, g/cm³		9.1

Embodied Carbon, kg CO₂/kg material		3.8
Embodied Carbon, kg CO₂/kg material		6.2

Embodied Energy, MJ/kg		54
Embodied Energy, MJ/kg		93

Embodied Water, L/kg		140
Embodied Water, L/kg		83

Common Calculations

PREN (Pitting Resistance)		18
PREN (Pitting Resistance)		29

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

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		22

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

Strength to Weight: Bending, points		21
Strength to Weight: Bending, points		20 to 34

Thermal Shock Resistance, points		15
Thermal Shock Resistance, points		22 to 49

Alloy Composition

Aluminum (Al), %		0 to 0.3
Aluminum (Al), %		0

Carbon (C), %		0 to 0.030
Carbon (C), %		0.22 to 0.32

Chromium (Cr), %		13 to 15
Chromium (Cr), %		3.8 to 4.5

Copper (Cu), %		0.75 to 1.5
Copper (Cu), %		0 to 0.25

Iron (Fe), %		56.1 to 67
Iron (Fe), %		77.2 to 81.3

Manganese (Mn), %		0 to 2.0
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		0.75 to 1.5
Molybdenum (Mo), %		0

Nickel (Ni), %		13 to 17
Nickel (Ni), %		0 to 0.3

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

Silicon (Si), %		5.5 to 6.5
Silicon (Si), %		0.15 to 0.4

Sulfur (S), %		0 to 0.020
Sulfur (S), %		0 to 0.030

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

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