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EN 1.4517 Stainless Steel vs. S31266 Stainless Steel

Both EN 1.4517 stainless steel and S31266 stainless steel are iron alloys. They have 76% 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 EN 1.4517 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, % 25
40
Fatigue Strength, MPa 380
400
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 730
860
Tensile Strength: Yield (Proof), MPa 550
470

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 450
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1430
1470
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 13
16

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 20
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 3.8
6.5
Embodied Energy, MJ/kg 53
89
Embodied Water, L/kg 180
220

Common Calculations

PREN (Pitting Resistance) 38
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
290
Resilience: Unit (Modulus of Resilience), kJ/m3 740
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
29
Strength to Weight: Bending, points 23
24
Thermal Diffusivity, mm2/s 4.6
3.1
Thermal Shock Resistance, points 20
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 24.5 to 26.5
23 to 25
Copper (Cu), % 2.8 to 3.5
1.0 to 2.5
Iron (Fe), % 56.7 to 65.1
34.1 to 46
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 2.5 to 3.5
5.2 to 6.2
Nickel (Ni), % 5.0 to 7.0
21 to 24
Nitrogen (N), % 0.12 to 0.22
0.35 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.025
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5