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S66286 Stainless Steel vs. AISI 446 Stainless Steel

Both S66286 stainless steel and AISI 446 stainless steel are iron alloys. They have 71% 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 S66286 stainless steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 17 to 40
23
Fatigue Strength, MPa 240 to 410
200
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 75
79
Shear Strength, MPa 420 to 630
360
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
570
Tensile Strength: Yield (Proof), MPa 280 to 670
300

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 780
440
Maximum Temperature: Mechanical, °C 920
1180
Melting Completion (Liquidus), °C 1430
1510
Melting Onset (Solidus), °C 1370
1430
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 15
17
Thermal Expansion, µm/m-K 17
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 26
12
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
2.4
Embodied Energy, MJ/kg 87
35
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 19
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
110
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
230
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 22 to 36
21
Strength to Weight: Bending, points 20 to 28
20
Thermal Diffusivity, mm2/s 4.0
4.6
Thermal Shock Resistance, points 13 to 22
19

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0 to 0.2
Chromium (Cr), % 13.5 to 16
23 to 27
Iron (Fe), % 49.1 to 59.5
69.2 to 77
Manganese (Mn), % 0 to 2.0
0 to 1.5
Molybdenum (Mo), % 1.0 to 1.5
0
Nickel (Ni), % 24 to 27
0 to 0.75
Nitrogen (N), % 0
0 to 0.25
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0