EN 1.5662 Steel vs. SAE-AISI A7 Steel

Both EN 1.5662 steel and SAE-AISI A7 steel are iron alloys. They have 85% 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 EN 1.5662 steel and the bottom bar is SAE-AISI A7 steel.

EN 1.5662 (X8Ni9) Nickel Steel SAE-AISI A7 (T30107) Air-Hardening Steel

Metric UnitsUS Customary Units

Mechanical Properties

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

Poisson's Ratio		0.29
Poisson's Ratio		0.29

Shear Modulus, GPa		73
Shear Modulus, GPa		72

Tensile Strength: Ultimate (UTS), MPa		740 to 750
Tensile Strength: Ultimate (UTS), MPa		800 to 2150

Thermal Properties

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

Melting Completion (Liquidus), °C		1460
Melting Completion (Liquidus), °C		1470

Melting Onset (Solidus), °C		1410
Melting Onset (Solidus), °C		1430

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

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

Otherwise Unclassified Properties

Base Metal Price, % relative		7.5
Base Metal Price, % relative		10

Density, g/cm³		8.0
Density, g/cm³		7.7

Embodied Carbon, kg CO₂/kg material		2.3
Embodied Carbon, kg CO₂/kg material		13

Embodied Energy, MJ/kg		31
Embodied Energy, MJ/kg		200

Embodied Water, L/kg		63
Embodied Water, L/kg		100

Common Calculations

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

Stiffness to Weight: Bending, points		24
Stiffness to Weight: Bending, points		25

Strength to Weight: Axial, points		26
Strength to Weight: Axial, points		29 to 77

Strength to Weight: Bending, points		23
Strength to Weight: Bending, points		25 to 48

Thermal Shock Resistance, points		22
Thermal Shock Resistance, points		27 to 72

Alloy Composition

Carbon (C), %		0 to 0.1
Carbon (C), %		2.0 to 2.9

Chromium (Cr), %		0
Chromium (Cr), %		5.0 to 5.8

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

Iron (Fe), %		88.6 to 91.2
Iron (Fe), %		81.4 to 87.7

Manganese (Mn), %		0.3 to 0.8
Manganese (Mn), %		0 to 0.8

Molybdenum (Mo), %		0 to 0.1
Molybdenum (Mo), %		0.9 to 1.4

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

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

Silicon (Si), %		0 to 0.35
Silicon (Si), %		0 to 0.5

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

Tungsten (W), %		0
Tungsten (W), %		0.5 to 1.5

Vanadium (V), %		0 to 0.050
Vanadium (V), %		3.9 to 5.2