ASTM Grade HD Steel vs. SAE-AISI H22 Steel

Both ASTM grade HD steel and SAE-AISI H22 steel are iron alloys. They have 68% of their average alloy composition in common. There are 22 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 ASTM grade HD steel and the bottom bar is SAE-AISI H22 steel.

ASTM Grade HD (28Cr-5Ni, J93005) Cast Stainless Steel SAE-AISI H22 (T20822) Tungsten Hot-Work Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.27
Poisson's Ratio		0.29

Shear Modulus, GPa		80
Shear Modulus, GPa		77

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

Thermal Properties

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

Melting Completion (Liquidus), °C		1410
Melting Completion (Liquidus), °C		1670

Melting Onset (Solidus), °C		1370
Melting Onset (Solidus), °C		1620

Specific Heat Capacity, J/kg-K		490
Specific Heat Capacity, J/kg-K		440

Thermal Conductivity, W/m-K		16
Thermal Conductivity, W/m-K		31

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

Otherwise Unclassified Properties

Base Metal Price, % relative		17
Base Metal Price, % relative		28

Density, g/cm³		7.7
Density, g/cm³		8.7

Embodied Carbon, kg CO₂/kg material		3.1
Embodied Carbon, kg CO₂/kg material		4.9

Embodied Energy, MJ/kg		45
Embodied Energy, MJ/kg		73

Embodied Water, L/kg		180
Embodied Water, L/kg		72

Common Calculations

PREN (Pitting Resistance)		29
PREN (Pitting Resistance)		21

Stiffness to Weight: Axial, points		15
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		26
Stiffness to Weight: Bending, points		22

Strength to Weight: Axial, points		21
Strength to Weight: Axial, points		22 to 61

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

Thermal Diffusivity, mm²/s		4.3
Thermal Diffusivity, mm²/s		8.2

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

Alloy Composition

Carbon (C), %		0 to 0.5
Carbon (C), %		0.3 to 0.4

Chromium (Cr), %		26 to 30
Chromium (Cr), %		1.8 to 3.8

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

Iron (Fe), %		58.4 to 70
Iron (Fe), %		82.2 to 87.4

Manganese (Mn), %		0 to 1.5
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		0 to 0.5
Molybdenum (Mo), %		0

Nickel (Ni), %		4.0 to 7.0
Nickel (Ni), %		0 to 0.3

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

Silicon (Si), %		0 to 2.0
Silicon (Si), %		0.15 to 0.4

Sulfur (S), %		0 to 0.040
Sulfur (S), %		0 to 0.030

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

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