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SAE-AISI 1086 Steel vs. EN 1.0303 Steel

Both SAE-AISI 1086 steel and EN 1.0303 steel are iron alloys. Their average alloy composition is basically identical.

For each property being compared, the top bar is SAE-AISI 1086 steel and the bottom bar is EN 1.0303 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
84 to 120
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
12 to 25
Fatigue Strength, MPa 300 to 360
150 to 230
Poisson's Ratio 0.29
0.29
Reduction in Area, % 28 to 45
75 to 86
Shear Modulus, GPa 72
73
Shear Strength, MPa 450 to 520
220 to 260
Tensile Strength: Ultimate (UTS), MPa 760 to 870
290 to 410
Tensile Strength: Yield (Proof), MPa 480 to 580
200 to 320

Thermal Properties

Latent Heat of Fusion, J/g 240
250
Maximum Temperature: Mechanical, °C 400
400
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1410
1430
Specific Heat Capacity, J/kg-K 470
470
Thermal Conductivity, W/m-K 50
53
Thermal Expansion, µm/m-K 11
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
6.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
7.9

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
1.8
Density, g/cm3 7.8
7.9
Embodied Carbon, kg CO2/kg material 1.4
1.4
Embodied Energy, MJ/kg 19
18
Embodied Water, L/kg 45
46

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
30 to 94
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
110 to 270
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 31
10 to 15
Strength to Weight: Bending, points 24 to 26
12 to 16
Thermal Diffusivity, mm2/s 14
14
Thermal Shock Resistance, points 26 to 30
9.2 to 13

Alloy Composition

Aluminum (Al), % 0
0.020 to 0.060
Carbon (C), % 0.8 to 0.93
0.020 to 0.060
Iron (Fe), % 98.5 to 98.9
99.335 to 99.71
Manganese (Mn), % 0.3 to 0.5
0.25 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.020
Silicon (Si), % 0
0 to 0.1
Sulfur (S), % 0 to 0.050
0 to 0.025

Comparable Variants