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EN 1.4584 Stainless Steel vs. S31266 Stainless Steel

Both EN 1.4584 stainless steel and S31266 stainless steel are iron alloys. They have a moderately high 90% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is EN 1.4584 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, % 34
40
Fatigue Strength, MPa 170
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 79
81
Tensile Strength: Ultimate (UTS), MPa 500
860
Tensile Strength: Yield (Proof), MPa 210
470

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 420
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 460
460
Thermal Conductivity, W/m-K 17
12
Thermal Expansion, µm/m-K 15
16

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

PREN (Pitting Resistance) 36
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
290
Resilience: Unit (Modulus of Resilience), kJ/m3 110
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 17
24
Thermal Diffusivity, mm2/s 4.5
3.1
Thermal Shock Resistance, points 12
18

Alloy Composition

Carbon (C), % 0 to 0.025
0 to 0.030
Chromium (Cr), % 19 to 21
23 to 25
Copper (Cu), % 1.0 to 3.0
1.0 to 2.5
Iron (Fe), % 41.7 to 52
34.1 to 46
Manganese (Mn), % 0 to 2.0
2.0 to 4.0
Molybdenum (Mo), % 4.0 to 5.0
5.2 to 6.2
Nickel (Ni), % 24 to 26
21 to 24
Nitrogen (N), % 0 to 0.2
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 0.020
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5