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SAE-AISI 1086 Steel vs. S40910 Stainless Steel

Both SAE-AISI 1086 steel and S40910 stainless steel are iron alloys. They have 88% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1086 steel and the bottom bar is S40910 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
160
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
23
Fatigue Strength, MPa 300 to 360
130
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
75
Shear Strength, MPa 450 to 520
270
Tensile Strength: Ultimate (UTS), MPa 760 to 870
430
Tensile Strength: Yield (Proof), MPa 480 to 580
190

Thermal Properties

Latent Heat of Fusion, J/g 240
270
Maximum Temperature: Mechanical, °C 400
710
Melting Completion (Liquidus), °C 1460
1450
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
26
Thermal Expansion, µm/m-K 11
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
7.0
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 45
94

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
80
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
94
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
16
Strength to Weight: Bending, points 24 to 26
16
Thermal Diffusivity, mm2/s 14
6.9
Thermal Shock Resistance, points 26 to 30
16

Alloy Composition

Carbon (C), % 0.8 to 0.93
0 to 0.030
Chromium (Cr), % 0
10.5 to 11.7
Iron (Fe), % 98.5 to 98.9
85 to 89.5
Manganese (Mn), % 0.3 to 0.5
0 to 1.0
Nickel (Ni), % 0
0 to 0.5
Niobium (Nb), % 0
0 to 0.17
Nitrogen (N), % 0
0 to 0.030
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.020
Titanium (Ti), % 0
0 to 0.5