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S31266 Stainless Steel vs. EN 1.4508 Stainless Steel

Both S31266 stainless steel and EN 1.4508 stainless steel are iron alloys. They have 74% 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 1.4508 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
210
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 81
79
Tensile Strength: Ultimate (UTS), MPa 860
570
Tensile Strength: Yield (Proof), MPa 470
260

Thermal Properties

Latent Heat of Fusion, J/g 310
300
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1100
1000
Melting Completion (Liquidus), °C 1470
1450
Melting Onset (Solidus), °C 1420
1400
Specific Heat Capacity, J/kg-K 460
470
Thermal Conductivity, W/m-K 12
15
Thermal Expansion, µm/m-K 16
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.8
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
20
Density, g/cm3 8.2
7.9
Embodied Carbon, kg CO2/kg material 6.5
4.0
Embodied Energy, MJ/kg 89
55
Embodied Water, L/kg 220
160

Common Calculations

PREN (Pitting Resistance) 54
32
Resilience: Ultimate (Unit Rupture Work), MJ/m3 290
160
Resilience: Unit (Modulus of Resilience), kJ/m3 540
170
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 29
20
Strength to Weight: Bending, points 24
19
Thermal Diffusivity, mm2/s 3.1
4.1
Thermal Shock Resistance, points 18
17

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 23 to 25
18 to 20
Copper (Cu), % 1.0 to 2.5
0
Iron (Fe), % 34.1 to 46
61.2 to 69.9
Manganese (Mn), % 2.0 to 4.0
0 to 1.5
Molybdenum (Mo), % 5.2 to 6.2
3.0 to 3.5
Nickel (Ni), % 21 to 24
9.0 to 12
Nitrogen (N), % 0.35 to 0.6
0.1 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.5
Sulfur (S), % 0 to 0.020
0 to 0.030
Tungsten (W), % 1.5 to 2.5
0