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EN 1.4630 Stainless Steel vs. S31266 Stainless Steel

Both EN 1.4630 stainless steel and S31266 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 56% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is EN 1.4630 stainless steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
210
Elongation at Break, % 23
40
Fatigue Strength, MPa 170
400
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
81
Shear Strength, MPa 300
590
Tensile Strength: Ultimate (UTS), MPa 480
860
Tensile Strength: Yield (Proof), MPa 250
470

Thermal Properties

Latent Heat of Fusion, J/g 290
310
Maximum Temperature: Corrosion, °C 520
440
Maximum Temperature: Mechanical, °C 800
1100
Melting Completion (Liquidus), °C 1440
1470
Melting Onset (Solidus), °C 1390
1420
Specific Heat Capacity, J/kg-K 480
460
Thermal Conductivity, W/m-K 28
12
Thermal Expansion, µm/m-K 10
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.8
1.8
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
37
Density, g/cm3 7.7
8.2
Embodied Carbon, kg CO2/kg material 2.5
6.5
Embodied Energy, MJ/kg 36
89
Embodied Water, L/kg 120
220

Common Calculations

PREN (Pitting Resistance) 15
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
290
Resilience: Unit (Modulus of Resilience), kJ/m3 160
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 17
29
Strength to Weight: Bending, points 18
24
Thermal Diffusivity, mm2/s 7.5
3.1
Thermal Shock Resistance, points 17
18

Alloy Composition

Aluminum (Al), % 0 to 1.5
0
Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 13 to 16
23 to 25
Copper (Cu), % 0 to 0.5
1.0 to 2.5
Iron (Fe), % 77.1 to 86.7
34.1 to 46
Manganese (Mn), % 0 to 1.0
2.0 to 4.0
Molybdenum (Mo), % 0 to 0.5
5.2 to 6.2
Nickel (Ni), % 0 to 0.5
21 to 24
Niobium (Nb), % 0 to 0.5
0
Nitrogen (N), % 0
0.35 to 0.6
Phosphorus (P), % 0 to 0.050
0 to 0.035
Silicon (Si), % 0.2 to 1.5
0 to 1.0
Sulfur (S), % 0 to 0.050
0 to 0.020
Titanium (Ti), % 0.15 to 0.8
0
Tungsten (W), % 0
1.5 to 2.5