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SAE-AISI 1086 Steel vs. S17400 Stainless Steel

Both SAE-AISI 1086 steel and S17400 stainless steel are iron alloys. They have 75% of their average alloy composition in common. There are 32 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 S17400 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 220 to 260
280 to 440
Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11
11 to 21
Fatigue Strength, MPa 300 to 360
380 to 670
Poisson's Ratio 0.29
0.28
Reduction in Area, % 28 to 45
40 to 62
Shear Modulus, GPa 72
75
Shear Strength, MPa 450 to 520
570 to 830
Tensile Strength: Ultimate (UTS), MPa 760 to 870
910 to 1390
Tensile Strength: Yield (Proof), MPa 480 to 580
580 to 1250

Thermal Properties

Latent Heat of Fusion, J/g 240
280
Maximum Temperature: Mechanical, °C 400
850
Melting Completion (Liquidus), °C 1460
1440
Melting Onset (Solidus), °C 1410
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 50
17
Thermal Expansion, µm/m-K 11
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 7.0
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.1
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 1.8
14
Density, g/cm3 7.8
7.8
Embodied Carbon, kg CO2/kg material 1.4
2.7
Embodied Energy, MJ/kg 19
39
Embodied Water, L/kg 45
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 79 to 84
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 890
880 to 4060
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 27 to 31
32 to 49
Strength to Weight: Bending, points 24 to 26
27 to 35
Thermal Diffusivity, mm2/s 14
4.5
Thermal Shock Resistance, points 26 to 30
30 to 46

Alloy Composition

Carbon (C), % 0.8 to 0.93
0 to 0.070
Chromium (Cr), % 0
15 to 17
Copper (Cu), % 0
3.0 to 5.0
Iron (Fe), % 98.5 to 98.9
70.4 to 78.9
Manganese (Mn), % 0.3 to 0.5
0 to 1.0
Nickel (Ni), % 0
3.0 to 5.0
Niobium (Nb), % 0
0.15 to 0.45
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 0.030