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S66286 Stainless Steel vs. AISI 420 Stainless Steel

Both S66286 stainless steel and AISI 420 stainless steel are iron alloys. They have 69% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is S66286 stainless steel and the bottom bar is AISI 420 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 17 to 40
8.0 to 15
Fatigue Strength, MPa 240 to 410
220 to 670
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
76
Shear Strength, MPa 420 to 630
420 to 1010
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
690 to 1720
Tensile Strength: Yield (Proof), MPa 280 to 670
380 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 300
280
Maximum Temperature: Corrosion, °C 780
390
Maximum Temperature: Mechanical, °C 920
620
Melting Completion (Liquidus), °C 1430
1510
Melting Onset (Solidus), °C 1370
1450
Specific Heat Capacity, J/kg-K 470
480
Thermal Conductivity, W/m-K 15
27
Thermal Expansion, µm/m-K 17
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.9
3.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.2
3.5

Otherwise Unclassified Properties

Base Metal Price, % relative 26
7.5
Density, g/cm3 7.9
7.7
Embodied Carbon, kg CO2/kg material 6.0
2.0
Embodied Energy, MJ/kg 87
28
Embodied Water, L/kg 170
100

Common Calculations

PREN (Pitting Resistance) 19
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
88 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
380 to 4410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22 to 36
25 to 62
Strength to Weight: Bending, points 20 to 28
22 to 41
Thermal Diffusivity, mm2/s 4.0
7.3
Thermal Shock Resistance, points 13 to 22
25 to 62

Alloy Composition

Aluminum (Al), % 0 to 0.35
0
Boron (B), % 0.0010 to 0.010
0
Carbon (C), % 0 to 0.080
0.15 to 0.4
Chromium (Cr), % 13.5 to 16
12 to 14
Iron (Fe), % 49.1 to 59.5
82.3 to 87.9
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 1.5
0 to 0.5
Nickel (Ni), % 24 to 27
0 to 0.75
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

Comparable Variants