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S31266 Stainless Steel vs. EN 1.4405 Stainless Steel

Both S31266 stainless steel and EN 1.4405 stainless steel are iron alloys. They have 63% of their average alloy composition in common. There are 31 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 1.4405 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
17
Fatigue Strength, MPa 400
370
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Tensile Strength: Ultimate (UTS), MPa 860
860
Tensile Strength: Yield (Proof), MPa 470
610

Thermal Properties

Latent Heat of Fusion, J/g 310
280
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 460
480
Thermal Conductivity, W/m-K 12
17
Thermal Expansion, µm/m-K 16
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 37
13
Density, g/cm3 8.2
7.8
Embodied Carbon, kg CO2/kg material 6.5
2.8
Embodied Energy, MJ/kg 89
39
Embodied Water, L/kg 220
130

Common Calculations

PREN (Pitting Resistance) 54
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
130
Resilience: Unit (Modulus of Resilience), kJ/m3 540
950
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
31
Strength to Weight: Bending, points 24
26
Thermal Diffusivity, mm2/s 3.1
4.6
Thermal Shock Resistance, points 18
29

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.060
Chromium (Cr), % 23 to 25
15 to 17
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 34.1 to 46
73.6 to 80.3
Manganese (Mn), % 2.0 to 4.0
0 to 1.0
Molybdenum (Mo), % 5.2 to 6.2
0.7 to 1.5
Nickel (Ni), % 21 to 24
4.0 to 6.0
Nitrogen (N), % 0.35 to 0.6
0
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.020
0 to 0.025
Tungsten (W), % 1.5 to 2.5
0