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SAE-AISI 5140 Steel vs. EN 1.8505 Steel

Both SAE-AISI 5140 steel and EN 1.8505 steel are iron alloys. They have a very high 98% 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 1.8505 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
320
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
13
Fatigue Strength, MPa 220 to 570
540
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 73
73
Shear Strength, MPa 360 to 600
630
Tensile Strength: Ultimate (UTS), MPa 560 to 970
1050
Tensile Strength: Yield (Proof), MPa 290 to 840
860

Thermal Properties

Latent Heat of Fusion, J/g 250
250
Maximum Temperature: Mechanical, °C 420
440
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 45
39
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
7.5
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
8.7

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
2.8
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 49
65

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
120
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
1950
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 34
37
Strength to Weight: Bending, points 19 to 28
30
Thermal Diffusivity, mm2/s 12
11
Thermal Shock Resistance, points 16 to 29
31

Alloy Composition

Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0.38 to 0.43
0.28 to 0.35
Chromium (Cr), % 0.7 to 0.9
1.5 to 1.8
Iron (Fe), % 97.3 to 98.1
95.4 to 97.1
Manganese (Mn), % 0.7 to 0.9
0.4 to 0.7
Molybdenum (Mo), % 0
0.2 to 0.4
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0 to 0.4
Sulfur (S), % 0 to 0.040
0 to 0.035