N08135 Stainless Steel vs. SAE-AISI H12 Steel

Both N08135 stainless steel and SAE-AISI H12 steel are iron alloys. They have 44% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is N08135 stainless steel and the bottom bar is SAE-AISI H12 steel.

UNS N08135 Iron-Nickel-Chromium Alloy SAE-AISI H12 (T20812) Chromium Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.28
Poisson's Ratio		0.29

Shear Modulus, GPa		80
Shear Modulus, GPa		75

Tensile Strength: Ultimate (UTS), MPa		570
Tensile Strength: Ultimate (UTS), MPa		690 to 1850

Thermal Properties

Latent Heat of Fusion, J/g		310
Latent Heat of Fusion, J/g		270

Melting Completion (Liquidus), °C		1440
Melting Completion (Liquidus), °C		1480

Melting Onset (Solidus), °C		1390
Melting Onset (Solidus), °C		1440

Specific Heat Capacity, J/kg-K		460
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		16
Thermal Expansion, µm/m-K		12

Otherwise Unclassified Properties

Base Metal Price, % relative		39
Base Metal Price, % relative		9.0

Density, g/cm³		8.2
Density, g/cm³		7.9

Embodied Carbon, kg CO₂/kg material		6.8
Embodied Carbon, kg CO₂/kg material		2.9

Embodied Energy, MJ/kg		94
Embodied Energy, MJ/kg		41

Embodied Water, L/kg		220
Embodied Water, L/kg		76

Common Calculations

PREN (Pitting Resistance)		38
PREN (Pitting Resistance)		12

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

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

Strength to Weight: Axial, points		19
Strength to Weight: Axial, points		24 to 65

Strength to Weight: Bending, points		19
Strength to Weight: Bending, points		22 to 42

Thermal Shock Resistance, points		13
Thermal Shock Resistance, points		22 to 60

Alloy Composition

Carbon (C), %		0 to 0.030
Carbon (C), %		0.3 to 0.4

Chromium (Cr), %		20.5 to 23.5
Chromium (Cr), %		4.8 to 5.5

Copper (Cu), %		0 to 0.7
Copper (Cu), %		0 to 0.25

Iron (Fe), %		30.2 to 42.3
Iron (Fe), %		87.8 to 91.7

Manganese (Mn), %		0 to 1.0
Manganese (Mn), %		0.2 to 0.5

Molybdenum (Mo), %		4.0 to 5.0
Molybdenum (Mo), %		1.3 to 1.8

Nickel (Ni), %		33 to 38
Nickel (Ni), %		0 to 0.3

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

Silicon (Si), %		0 to 0.75
Silicon (Si), %		0.8 to 1.2

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

Tungsten (W), %		0.2 to 0.8
Tungsten (W), %		1.0 to 1.7

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