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EN 1.4658 Stainless Steel vs. S31266 Stainless Steel

Both EN 1.4658 stainless steel and S31266 stainless steel are iron alloys. They have 78% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is EN 1.4658 stainless steel and the bottom bar is S31266 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 210
210
Elongation at Break, % 28
40
Fatigue Strength, MPa 530
400
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
81
Shear Strength, MPa 580
590
Tensile Strength: Ultimate (UTS), MPa 900
860
Tensile Strength: Yield (Proof), MPa 730
470

Thermal Properties

Latent Heat of Fusion, J/g 300
310
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
1100
Melting Completion (Liquidus), °C 1450
1470
Melting Onset (Solidus), °C 1400
1420
Specific Heat Capacity, J/kg-K 470
460
Thermal Conductivity, W/m-K 16
12
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 25
37
Density, g/cm3 7.8
8.2
Embodied Carbon, kg CO2/kg material 4.5
6.5
Embodied Energy, MJ/kg 61
89
Embodied Water, L/kg 200
220

Common Calculations

PREN (Pitting Resistance) 49
54
Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
290
Resilience: Unit (Modulus of Resilience), kJ/m3 1280
540
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 32
29
Strength to Weight: Bending, points 26
24
Thermal Diffusivity, mm2/s 4.3
3.1
Thermal Shock Resistance, points 24
18

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 26 to 29
23 to 25
Cobalt (Co), % 0.5 to 2.0
0
Copper (Cu), % 0 to 1.0
1.0 to 2.5
Iron (Fe), % 50.9 to 63.7
34.1 to 46
Manganese (Mn), % 0 to 1.5
2.0 to 4.0
Molybdenum (Mo), % 4.0 to 5.0
5.2 to 6.2
Nickel (Ni), % 5.5 to 9.5
21 to 24
Nitrogen (N), % 0.3 to 0.5
0.35 to 0.6
Phosphorus (P), % 0 to 0.035
0 to 0.035
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.010
0 to 0.020
Tungsten (W), % 0
1.5 to 2.5