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S32803 Stainless Steel vs. S66286 Stainless Steel

Both S32803 stainless steel and S66286 stainless steel are iron alloys. They have 74% 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 S32803 stainless steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 18
17 to 40
Fatigue Strength, MPa 350
240 to 410
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 81
75
Shear Strength, MPa 420
420 to 630
Tensile Strength: Ultimate (UTS), MPa 680
620 to 1020
Tensile Strength: Yield (Proof), MPa 560
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 300
300
Maximum Temperature: Corrosion, °C 510
780
Maximum Temperature: Mechanical, °C 1100
920
Melting Completion (Liquidus), °C 1450
1430
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 19
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 3.7
6.0
Embodied Energy, MJ/kg 53
87
Embodied Water, L/kg 180
170

Common Calculations

PREN (Pitting Resistance) 36
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 760
190 to 1150
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 25
22 to 36
Strength to Weight: Bending, points 22
20 to 28
Thermal Diffusivity, mm2/s 4.4
4.0
Thermal Shock Resistance, points 22
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0 to 0.015
0 to 0.080
Chromium (Cr), % 28 to 29
13.5 to 16
Iron (Fe), % 62.9 to 67.1
49.1 to 59.5
Manganese (Mn), % 0 to 0.5
0 to 2.0
Molybdenum (Mo), % 1.8 to 2.5
1.0 to 1.5
Nickel (Ni), % 3.0 to 4.0
24 to 27
Niobium (Nb), % 0.15 to 0.5
0
Nitrogen (N), % 0 to 0.020
0
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.55
0 to 1.0
Sulfur (S), % 0 to 0.0035
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5