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S31266 Stainless Steel vs. EN 1.4539 Stainless Steel

Both S31266 stainless steel and EN 1.4539 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is S31266 stainless steel and the bottom bar is EN 1.4539 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
38
Fatigue Strength, MPa 400
220
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
79
Shear Strength, MPa 590
430
Tensile Strength: Ultimate (UTS), MPa 860
630
Tensile Strength: Yield (Proof), MPa 470
260

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1470
1440
Melting Onset (Solidus), °C 1420
1390
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 12
12
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
31
Density, g/cm3 8.2
8.1
Embodied Carbon, kg CO2/kg material 6.5
5.7
Embodied Energy, MJ/kg 89
78
Embodied Water, L/kg 220
200

Common Calculations

PREN (Pitting Resistance) 54
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
190
Resilience: Unit (Modulus of Resilience), kJ/m3 540
160
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 29
22
Strength to Weight: Bending, points 24
20
Thermal Diffusivity, mm2/s 3.1
3.2
Thermal Shock Resistance, points 18
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.020
Chromium (Cr), % 23 to 25
19 to 21
Copper (Cu), % 1.0 to 2.5
1.2 to 2.0
Iron (Fe), % 34.1 to 46
43.1 to 51.8
Manganese (Mn), % 2.0 to 4.0
0 to 2.0
Molybdenum (Mo), % 5.2 to 6.2
4.0 to 5.0
Nickel (Ni), % 21 to 24
24 to 26
Nitrogen (N), % 0.35 to 0.6
0 to 0.15
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 0.7
Sulfur (S), % 0 to 0.020
0 to 0.010
Tungsten (W), % 1.5 to 2.5
0