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SAE-AISI 5140 Steel vs. EN 1.8523 Steel

Both SAE-AISI 5140 steel and EN 1.8523 steel are iron alloys. They have a very high 97% of their average alloy composition in common. 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 5140 steel and the bottom bar is EN 1.8523 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
300
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
15
Fatigue Strength, MPa 220 to 570
530
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
74
Shear Strength, MPa 360 to 600
610
Tensile Strength: Ultimate (UTS), MPa 560 to 970
1000
Tensile Strength: Yield (Proof), MPa 290 to 840
800

Thermal Properties

Latent Heat of Fusion, J/g 250
260
Maximum Temperature: Mechanical, °C 420
480
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 45
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.8
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
9.0

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
4.2
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.2
Embodied Energy, MJ/kg 19
31
Embodied Water, L/kg 49
64

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
140
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
1700
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 20 to 34
36
Strength to Weight: Bending, points 19 to 28
28
Thermal Diffusivity, mm2/s 12
10
Thermal Shock Resistance, points 16 to 29
29

Alloy Composition

Carbon (C), % 0.38 to 0.43
0.35 to 0.45
Chromium (Cr), % 0.7 to 0.9
3.0 to 3.5
Iron (Fe), % 97.3 to 98.1
93.5 to 95.7
Manganese (Mn), % 0.7 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 0
0.8 to 1.1
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035
Vanadium (V), % 0
0.15 to 0.25