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S31266 Stainless Steel vs. S44735 Stainless Steel

Both S31266 stainless steel and S44735 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 70% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is S31266 stainless steel and the bottom bar is S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 40
21
Fatigue Strength, MPa 400
300
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 81
82
Shear Strength, MPa 590
390
Tensile Strength: Ultimate (UTS), MPa 860
630
Tensile Strength: Yield (Proof), MPa 470
460

Thermal Properties

Latent Heat of Fusion, J/g 310
310
Maximum Temperature: Corrosion, °C 440
650
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1470
1460
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 37
21
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
4.4
Embodied Energy, MJ/kg 89
61
Embodied Water, L/kg 220
180

Common Calculations

PREN (Pitting Resistance) 54
42
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
120
Resilience: Unit (Modulus of Resilience), kJ/m3 540
520
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 29
23
Strength to Weight: Bending, points 24
21
Thermal Shock Resistance, points 18
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 23 to 25
28 to 30
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 34.1 to 46
60.7 to 68.4
Manganese (Mn), % 2.0 to 4.0
0 to 1.0
Molybdenum (Mo), % 5.2 to 6.2
3.6 to 4.2
Nickel (Ni), % 21 to 24
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0.35 to 0.6
0 to 0.045
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0
Tungsten (W), % 1.5 to 2.5
0