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EN 1.4372 Stainless Steel vs. S31266 Stainless Steel

Both EN 1.4372 stainless steel and S31266 stainless steel are iron alloys. They have 65% of their average alloy composition in common. There are 32 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 1.4372 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, % 47
40
Fatigue Strength, MPa 330
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
81
Shear Strength, MPa 560
590
Tensile Strength: Ultimate (UTS), MPa 790
860
Tensile Strength: Yield (Proof), MPa 350
470

Thermal Properties

Latent Heat of Fusion, J/g 280
310
Maximum Temperature: Corrosion, °C 410
440
Maximum Temperature: Mechanical, °C 880
1100
Melting Completion (Liquidus), °C 1410
1470
Melting Onset (Solidus), °C 1370
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 15
12
Thermal Expansion, µm/m-K 17
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.5
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 2.9
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 12
37
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.6
6.5
Embodied Energy, MJ/kg 38
89
Embodied Water, L/kg 140
220

Common Calculations

PREN (Pitting Resistance) 19
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 310
290
Resilience: Unit (Modulus of Resilience), kJ/m3 320
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29
29
Strength to Weight: Bending, points 25
24
Thermal Diffusivity, mm2/s 4.0
3.1
Thermal Shock Resistance, points 17
18

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.030
Chromium (Cr), % 16 to 18
23 to 25
Copper (Cu), % 0
1.0 to 2.5
Iron (Fe), % 67.5 to 75
34.1 to 46
Manganese (Mn), % 5.5 to 7.5
2.0 to 4.0
Molybdenum (Mo), % 0
5.2 to 6.2
Nickel (Ni), % 3.5 to 5.5
21 to 24
Nitrogen (N), % 0.050 to 0.25
0.35 to 0.6
Phosphorus (P), % 0 to 0.045
0 to 0.035
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5