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EN 1.4415 Stainless Steel vs. S31266 Stainless Steel

Both EN 1.4415 stainless steel and S31266 stainless steel are iron alloys. They have 61% 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 EN 1.4415 stainless steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
210
Elongation at Break, % 17 to 20
40
Fatigue Strength, MPa 470 to 510
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 520 to 570
590
Tensile Strength: Ultimate (UTS), MPa 830 to 930
860
Tensile Strength: Yield (Proof), MPa 730 to 840
470

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 390
440
Maximum Temperature: Mechanical, °C 790
1100
Melting Completion (Liquidus), °C 1460
1470
Melting Onset (Solidus), °C 1420
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 19
12
Thermal Expansion, µm/m-K 9.9
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.8
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 7.9
8.2
Embodied Carbon, kg CO2/kg material 3.6
6.5
Embodied Energy, MJ/kg 51
89
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 19
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
290
Resilience: Unit (Modulus of Resilience), kJ/m3 1350 to 1790
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 33
29
Strength to Weight: Bending, points 25 to 27
24
Thermal Diffusivity, mm2/s 5.1
3.1
Thermal Shock Resistance, points 30 to 34
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 11.5 to 13.5
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 75.9 to 82.4
34.1 to 46
Manganese (Mn), % 0 to 0.5
2.0 to 4.0
Molybdenum (Mo), % 1.5 to 2.5
5.2 to 6.2
Nickel (Ni), % 4.5 to 6.5
21 to 24
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.040
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Titanium (Ti), % 0 to 0.010
0
Tungsten (W), % 0
1.5 to 2.5
Vanadium (V), % 0.1 to 0.5
0