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S31266 Stainless Steel vs. EN 1.4646 Stainless Steel

Both S31266 stainless steel and EN 1.4646 stainless steel are iron alloys. They have 68% 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 EN 1.4646 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 40
34
Fatigue Strength, MPa 400
340
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
77
Shear Strength, MPa 590
500
Tensile Strength: Ultimate (UTS), MPa 860
750
Tensile Strength: Yield (Proof), MPa 470
430

Thermal Properties

Latent Heat of Fusion, J/g 310
290
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1100
910
Melting Completion (Liquidus), °C 1470
1390
Melting Onset (Solidus), °C 1420
1340
Specific Heat Capacity, J/kg-K 460
480
Thermal Expansion, µm/m-K 16
17

Otherwise Unclassified Properties

Base Metal Price, % relative 37
13
Density, g/cm3 8.2
7.7
Embodied Carbon, kg CO2/kg material 6.5
2.8
Embodied Energy, MJ/kg 89
41
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 54
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
220
Resilience: Unit (Modulus of Resilience), kJ/m3 540
460
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
27
Strength to Weight: Bending, points 24
24
Thermal Shock Resistance, points 18
16

Alloy Composition

Carbon (C), % 0 to 0.030
0.020 to 0.1
Chromium (Cr), % 23 to 25
17 to 19
Copper (Cu), % 1.0 to 2.5
1.5 to 3.0
Iron (Fe), % 34.1 to 46
59 to 67.3
Manganese (Mn), % 2.0 to 4.0
10.5 to 12.5
Molybdenum (Mo), % 5.2 to 6.2
0 to 0.5
Nickel (Ni), % 21 to 24
3.5 to 4.5
Nitrogen (N), % 0.35 to 0.6
0.2 to 0.3
Phosphorus (P), % 0 to 0.035
0 to 0.050
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.020
0 to 0.015
Tungsten (W), % 1.5 to 2.5
0