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SAE-AISI 1086 Steel vs. EN 1.4409 Stainless Steel

Both SAE-AISI 1086 steel and EN 1.4409 stainless steel are iron alloys. They have 67% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1086 steel and the bottom bar is EN 1.4409 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
140
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 11
34
Fatigue Strength, MPa 300 to 360
180
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
78
Tensile Strength: Ultimate (UTS), MPa 760 to 870
490
Tensile Strength: Yield (Proof), MPa 480 to 580
220

Thermal Properties

Latent Heat of Fusion, J/g 240
300
Maximum Temperature: Mechanical, °C 400
990
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1390
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
19
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
3.7
Embodied Energy, MJ/kg 19
52
Embodied Water, L/kg 45
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
140
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
120
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
17
Strength to Weight: Bending, points 24 to 26
18
Thermal Diffusivity, mm2/s 14
4.1
Thermal Shock Resistance, points 26 to 30
11

Alloy Composition

Carbon (C), % 0.8 to 0.93
0 to 0.030
Chromium (Cr), % 0
18 to 20
Iron (Fe), % 98.5 to 98.9
61.7 to 71
Manganese (Mn), % 0.3 to 0.5
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0
9.0 to 12
Nitrogen (N), % 0
0 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0
0 to 1.5
Sulfur (S), % 0 to 0.050
0 to 0.025