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SAE-AISI 1144 Steel vs. EN 1.0566 Steel

Both SAE-AISI 1144 steel and EN 1.0566 steel are iron alloys. Their average alloy composition is basically identical. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1144 steel and the bottom bar is EN 1.0566 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 230
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 17
24
Fatigue Strength, MPa 280 to 430
270
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 72
73
Shear Strength, MPa 460 to 510
350
Tensile Strength: Ultimate (UTS), MPa 750 to 840
550
Tensile Strength: Yield (Proof), MPa 420 to 690
370

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1450
1460
Melting Onset (Solidus), °C 1410
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 51
50
Thermal Expansion, µm/m-K 13
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 8.2
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.9
2.3
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
1.6
Embodied Energy, MJ/kg 19
22
Embodied Water, L/kg 47
50

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 91 to 110
120
Resilience: Unit (Modulus of Resilience), kJ/m3 480 to 1290
360
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 30
19
Strength to Weight: Bending, points 23 to 25
19
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 22 to 24
17

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.024
Carbon (C), % 0.4 to 0.48
0 to 0.18
Chromium (Cr), % 0
0 to 0.3
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.5 to 98
96.2 to 98.9
Manganese (Mn), % 1.4 to 1.7
1.1 to 1.7
Molybdenum (Mo), % 0
0 to 0.080
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.050
Nitrogen (N), % 0
0 to 0.012
Phosphorus (P), % 0 to 0.040
0 to 0.025
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0.24 to 0.33
0 to 0.0080
Titanium (Ti), % 0
0 to 0.030
Vanadium (V), % 0
0 to 0.1