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SAE-AISI 5140 Steel vs. EN 1.7386 Steel

Both SAE-AISI 5140 steel and EN 1.7386 steel are iron alloys. They have a moderately high 90% 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 1.7386 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170 to 290
170 to 200
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 12 to 29
18 to 21
Fatigue Strength, MPa 220 to 570
170 to 290
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 73
75
Shear Strength, MPa 360 to 600
340 to 410
Tensile Strength: Ultimate (UTS), MPa 560 to 970
550 to 670
Tensile Strength: Yield (Proof), MPa 290 to 840
240 to 440

Thermal Properties

Latent Heat of Fusion, J/g 250
270
Maximum Temperature: Mechanical, °C 420
600
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
26
Thermal Expansion, µm/m-K 13
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.2
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 8.3
10

Otherwise Unclassified Properties

Base Metal Price, % relative 2.1
6.5
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.0
Embodied Energy, MJ/kg 19
28
Embodied Water, L/kg 49
88

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 76 to 180
92 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 220 to 1880
150 to 490
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 20 to 34
20 to 24
Strength to Weight: Bending, points 19 to 28
19 to 22
Thermal Diffusivity, mm2/s 12
6.9
Thermal Shock Resistance, points 16 to 29
15 to 18

Alloy Composition

Aluminum (Al), % 0
0 to 0.040
Carbon (C), % 0.38 to 0.43
0.080 to 0.15
Chromium (Cr), % 0.7 to 0.9
8.0 to 10
Copper (Cu), % 0
0 to 0.3
Iron (Fe), % 97.3 to 98.1
86.8 to 90.5
Manganese (Mn), % 0.7 to 0.9
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Phosphorus (P), % 0 to 0.035
0 to 0.025
Silicon (Si), % 0.15 to 0.35
0.25 to 1.0
Sulfur (S), % 0 to 0.040
0 to 0.010

Comparable Variants