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EN 1.7390 Steel vs. SAE-AISI 1086 Steel

Both EN 1.7390 steel and SAE-AISI 1086 steel are iron alloys. They have a moderately high 94% of their average alloy composition in common. There are 32 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 EN 1.7390 steel and the bottom bar is SAE-AISI 1086 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
220 to 260
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 16
11
Fatigue Strength, MPa 310
300 to 360
Poisson's Ratio 0.29
0.29
Reduction in Area, % 50
28 to 45
Shear Modulus, GPa 74
72
Shear Strength, MPa 440
450 to 520
Tensile Strength: Ultimate (UTS), MPa 710
760 to 870
Tensile Strength: Yield (Proof), MPa 480
480 to 580

Thermal Properties

Latent Heat of Fusion, J/g 260
240
Maximum Temperature: Mechanical, °C 510
400
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1420
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 40
50
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 8.1
7.0
Electrical Conductivity: Equal Weight (Specific), % IACS 9.3
8.1

Otherwise Unclassified Properties

Base Metal Price, % relative 4.3
1.8
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.7
1.4
Embodied Energy, MJ/kg 23
19
Embodied Water, L/kg 69
45

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
79 to 84
Resilience: Unit (Modulus of Resilience), kJ/m3 600
610 to 890
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
27 to 31
Strength to Weight: Bending, points 23
24 to 26
Thermal Diffusivity, mm2/s 11
14
Thermal Shock Resistance, points 20
26 to 30

Alloy Composition

Carbon (C), % 0 to 0.18
0.8 to 0.93
Chromium (Cr), % 4.0 to 6.0
0
Iron (Fe), % 91.9 to 95.3
98.5 to 98.9
Manganese (Mn), % 0.3 to 0.8
0.3 to 0.5
Molybdenum (Mo), % 0.45 to 0.65
0
Phosphorus (P), % 0 to 0.025
0 to 0.040
Silicon (Si), % 0 to 0.4
0
Sulfur (S), % 0 to 0.015
0 to 0.050