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EN 1.4662 Stainless Steel vs. S31727 Stainless Steel

Both EN 1.4662 stainless steel and S31727 stainless steel are iron alloys. They have 83% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is EN 1.4662 stainless steel and the bottom bar is S31727 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 28
40
Fatigue Strength, MPa 430 to 450
240
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 79
78
Shear Strength, MPa 520 to 540
430
Tensile Strength: Ultimate (UTS), MPa 810 to 830
630
Tensile Strength: Yield (Proof), MPa 580 to 620
270

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1090
1010
Melting Completion (Liquidus), °C 1430
1440
Melting Onset (Solidus), °C 1380
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 16
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 3.2
4.7
Embodied Energy, MJ/kg 45
64
Embodied Water, L/kg 170
180

Common Calculations

PREN (Pitting Resistance) 33
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
200
Resilience: Unit (Modulus of Resilience), kJ/m3 840 to 940
190
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 29 to 30
22
Strength to Weight: Bending, points 25
20
Thermal Shock Resistance, points 22
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 23 to 25
17.5 to 19
Copper (Cu), % 0.1 to 0.8
2.8 to 4.0
Iron (Fe), % 62.6 to 70.2
53.7 to 61.3
Manganese (Mn), % 2.5 to 4.0
0 to 1.0
Molybdenum (Mo), % 1.0 to 2.0
3.8 to 4.5
Nickel (Ni), % 3.0 to 4.5
14.5 to 16.5
Nitrogen (N), % 0.2 to 0.3
0.15 to 0.21
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 0.7
0 to 1.0
Sulfur (S), % 0 to 0.0050
0 to 0.030