Hardened SAE-AISI H11 vs. Hardened SAE-AISI M62

Both hardened SAE-AISI H11 and hardened SAE-AISI M62 are iron alloys. Both are furnished in the hardened (H) condition. They have 82% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is hardened SAE-AISI H11 and the bottom bar is hardened SAE-AISI M62.

Hardened H11 Tool Steel Hardened M62 Tool 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

Rockwell C Hardness		57
Rockwell C Hardness		75

Shear Modulus, GPa		74
Shear Modulus, GPa		79

Tensile Strength: Ultimate (UTS), MPa		1840
Tensile Strength: Ultimate (UTS), MPa		2440

Thermal Properties

Latent Heat of Fusion, J/g		270
Latent Heat of Fusion, J/g		260

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1650

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1600

Specific Heat Capacity, J/kg-K		470
Specific Heat Capacity, J/kg-K		430

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

Otherwise Unclassified Properties

Base Metal Price, % relative		5.5
Base Metal Price, % relative		30

Density, g/cm³		7.8
Density, g/cm³		8.5

Embodied Carbon, kg CO₂/kg material		3.0
Embodied Carbon, kg CO₂/kg material		10

Embodied Energy, MJ/kg		43
Embodied Energy, MJ/kg		150

Embodied Water, L/kg		75
Embodied Water, L/kg		110

Common Calculations

PREN (Pitting Resistance)		9.6
PREN (Pitting Resistance)		49

Stiffness to Weight: Axial, points		14
Stiffness to Weight: Axial, points		13

Stiffness to Weight: Bending, points		25
Stiffness to Weight: Bending, points		23

Strength to Weight: Axial, points		66
Strength to Weight: Axial, points		80

Strength to Weight: Bending, points		43
Strength to Weight: Bending, points		47

Thermal Shock Resistance, points		58
Thermal Shock Resistance, points		71

Alloy Composition

Carbon (C), %		0.33 to 0.43
Carbon (C), %		1.3 to 1.4

Chromium (Cr), %		4.8 to 5.5
Chromium (Cr), %		3.5 to 4.0

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

Iron (Fe), %		89.6 to 92.5
Iron (Fe), %		73.6 to 77.4

Manganese (Mn), %		0.2 to 0.5
Manganese (Mn), %		0.15 to 0.4

Molybdenum (Mo), %		1.1 to 1.6
Molybdenum (Mo), %		10 to 11

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

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

Silicon (Si), %		0.8 to 1.2
Silicon (Si), %		0.15 to 0.4

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

Tungsten (W), %		0
Tungsten (W), %		5.8 to 6.5

Vanadium (V), %		0.3 to 0.6
Vanadium (V), %		1.8 to 2.1