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EN 1.4031 Stainless Steel vs. S66286 Stainless Steel

Both EN 1.4031 stainless steel and S66286 stainless steel are iron alloys. They have 69% of their average alloy composition in common.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is S66286 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 13
17 to 40
Fatigue Strength, MPa 220 to 400
240 to 410
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
75
Shear Strength, MPa 400 to 540
420 to 630
Tensile Strength: Ultimate (UTS), MPa 670 to 900
620 to 1020
Tensile Strength: Yield (Proof), MPa 390 to 730
280 to 670

Thermal Properties

Latent Heat of Fusion, J/g 280
300
Maximum Temperature: Corrosion, °C 390
780
Maximum Temperature: Mechanical, °C 770
920
Melting Completion (Liquidus), °C 1440
1430
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.2

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
26
Density, g/cm3 7.7
7.9
Embodied Carbon, kg CO2/kg material 1.9
6.0
Embodied Energy, MJ/kg 27
87
Embodied Water, L/kg 100
170

Common Calculations

PREN (Pitting Resistance) 14
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
150 to 200
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
190 to 1150
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 24 to 32
22 to 36
Strength to Weight: Bending, points 22 to 27
20 to 28
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 23 to 32
13 to 22

Alloy Composition

Aluminum (Al), % 0
0 to 0.35
Boron (B), % 0
0.0010 to 0.010
Carbon (C), % 0.36 to 0.42
0 to 0.080
Chromium (Cr), % 12.5 to 14.5
13.5 to 16
Iron (Fe), % 83 to 87.1
49.1 to 59.5
Manganese (Mn), % 0 to 1.0
0 to 2.0
Molybdenum (Mo), % 0
1.0 to 1.5
Nickel (Ni), % 0
24 to 27
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030
Titanium (Ti), % 0
1.9 to 2.4
Vanadium (V), % 0
0.1 to 0.5

Comparable Variants