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S66286 Stainless Steel vs. S31277 Stainless Steel

Both S66286 stainless steel and S31277 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 28 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 S31277 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 17 to 40
45
Fatigue Strength, MPa 240 to 410
380
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 75
80
Shear Strength, MPa 420 to 630
600
Tensile Strength: Ultimate (UTS), MPa 620 to 1020
860
Tensile Strength: Yield (Proof), MPa 280 to 670
410

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 780
430
Maximum Temperature: Mechanical, °C 920
1100
Melting Completion (Liquidus), °C 1430
1460
Melting Onset (Solidus), °C 1370
1410
Specific Heat Capacity, J/kg-K 470
460
Thermal Expansion, µm/m-K 17
16

Otherwise Unclassified Properties

Base Metal Price, % relative 26
36
Density, g/cm3 7.9
8.1
Embodied Carbon, kg CO2/kg material 6.0
6.7
Embodied Energy, MJ/kg 87
90
Embodied Water, L/kg 170
220

Common Calculations

PREN (Pitting Resistance) 19
51
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 200
320
Resilience: Unit (Modulus of Resilience), kJ/m3 190 to 1150
410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22 to 36
29
Strength to Weight: Bending, points 20 to 28
25
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 0.020
Chromium (Cr), % 13.5 to 16
20.5 to 23
Copper (Cu), % 0
0.5 to 1.5
Iron (Fe), % 49.1 to 59.5
35.5 to 46.2
Manganese (Mn), % 0 to 2.0
0 to 3.0
Molybdenum (Mo), % 1.0 to 1.5
6.5 to 8.0
Nickel (Ni), % 24 to 27
26 to 28
Nitrogen (N), % 0
0.3 to 0.4
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.5
Sulfur (S), % 0 to 0.030
0 to 0.010
Titanium (Ti), % 1.9 to 2.4
0
Vanadium (V), % 0.1 to 0.5
0