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SAE-AISI 1086 Steel vs. S31277 Stainless Steel

Both SAE-AISI 1086 steel and S31277 stainless steel are iron alloys. They have 41% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is SAE-AISI 1086 steel and the bottom bar is S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 11
45
Fatigue Strength, MPa 300 to 360
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 72
80
Shear Strength, MPa 450 to 520
600
Tensile Strength: Ultimate (UTS), MPa 760 to 870
860
Tensile Strength: Yield (Proof), MPa 480 to 580
410

Thermal Properties

Latent Heat of Fusion, J/g 240
310
Maximum Temperature: Mechanical, °C 400
1100
Melting Completion (Liquidus), °C 1460
1460
Melting Onset (Solidus), °C 1410
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 11
16

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
36
Density, g/cm3 7.8
8.1
Embodied Carbon, kg CO2/kg material 1.4
6.7
Embodied Energy, MJ/kg 19
90
Embodied Water, L/kg 45
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
320
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
410
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 27 to 31
29
Strength to Weight: Bending, points 24 to 26
25
Thermal Shock Resistance, points 26 to 30
19

Alloy Composition

Carbon (C), % 0.8 to 0.93
0 to 0.020
Chromium (Cr), % 0
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 98.5 to 98.9
35.5 to 46.2
Manganese (Mn), % 0.3 to 0.5
0 to 3.0
Molybdenum (Mo), % 0
6.5 to 8.0
Nickel (Ni), % 0
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0 to 0.050
0 to 0.010