SAE-AISI M4 Steel vs. EN 1.5662 Steel

Both SAE-AISI M4 steel and EN 1.5662 steel are iron alloys. They have 79% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (15, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI M4 steel and the bottom bar is EN 1.5662 steel.

SAE-AISI M4 (T11304) Molybdenum High-Speed Steel EN 1.5662 (X8Ni9) Nickel Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		76
Shear Modulus, GPa		73

Tensile Strength: Ultimate (UTS), MPa		770 to 2150
Tensile Strength: Ultimate (UTS), MPa		740 to 750

Thermal Properties

Latent Heat of Fusion, J/g		260
Latent Heat of Fusion, J/g		250

Melting Completion (Liquidus), °C		1610
Melting Completion (Liquidus), °C		1460

Melting Onset (Solidus), °C		1560
Melting Onset (Solidus), °C		1410

Specific Heat Capacity, J/kg-K		440
Specific Heat Capacity, J/kg-K		470

Thermal Expansion, µm/m-K		12
Thermal Expansion, µm/m-K		13

Otherwise Unclassified Properties

Base Metal Price, % relative		25
Base Metal Price, % relative		7.5

Density, g/cm³		8.3
Density, g/cm³		8.0

Embodied Carbon, kg CO₂/kg material		14
Embodied Carbon, kg CO₂/kg material		2.3

Embodied Energy, MJ/kg		210
Embodied Energy, MJ/kg		31

Embodied Water, L/kg		110
Embodied Water, L/kg		63

Common Calculations

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

Stiffness to Weight: Bending, points		23
Stiffness to Weight: Bending, points		24

Strength to Weight: Axial, points		26 to 72
Strength to Weight: Axial, points		26

Strength to Weight: Bending, points		23 to 45
Strength to Weight: Bending, points		23

Thermal Shock Resistance, points		24 to 68
Thermal Shock Resistance, points		22

Alloy Composition

Carbon (C), %		1.3 to 1.4
Carbon (C), %		0 to 0.1

Chromium (Cr), %		3.8 to 4.8
Chromium (Cr), %		0

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

Iron (Fe), %		75.9 to 81.4
Iron (Fe), %		88.6 to 91.2

Manganese (Mn), %		0.15 to 0.4
Manganese (Mn), %		0.3 to 0.8

Molybdenum (Mo), %		4.3 to 5.5
Molybdenum (Mo), %		0 to 0.1

Nickel (Ni), %		0 to 0.3
Nickel (Ni), %		8.5 to 10

Phosphorus (P), %		0 to 0.030
Phosphorus (P), %		0 to 0.020

Silicon (Si), %		0.2 to 0.45
Silicon (Si), %		0 to 0.35

Sulfur (S), %		0 to 0.030
Sulfur (S), %		0 to 0.0050

Tungsten (W), %		5.3 to 6.5
Tungsten (W), %		0

Vanadium (V), %		3.8 to 4.5
Vanadium (V), %		0 to 0.050