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EN 1.4655 Stainless Steel vs. S31727 Stainless Steel

Both EN 1.4655 stainless steel and S31727 stainless steel are iron alloys. They have 84% 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 1.4655 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, % 23 to 25
40
Fatigue Strength, MPa 320
240
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 460
430
Tensile Strength: Ultimate (UTS), MPa 720 to 730
630
Tensile Strength: Yield (Proof), MPa 450 to 480
270

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1050
1010
Melting Completion (Liquidus), °C 1420
1440
Melting Onset (Solidus), °C 1370
1390
Specific Heat Capacity, J/kg-K 480
470
Thermal Expansion, µm/m-K 13
16

Otherwise Unclassified Properties

Base Metal Price, % relative 15
24
Density, g/cm3 7.7
8.0
Embodied Carbon, kg CO2/kg material 2.9
4.7
Embodied Energy, MJ/kg 41
64
Embodied Water, L/kg 160
180

Common Calculations

PREN (Pitting Resistance) 26
35
Resilience: Ultimate (Unit Rupture Work), MJ/m3 150 to 160
200
Resilience: Unit (Modulus of Resilience), kJ/m3 510 to 580
190
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
24
Strength to Weight: Axial, points 26
22
Strength to Weight: Bending, points 23
20
Thermal Shock Resistance, points 20
14

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 22 to 24
17.5 to 19
Copper (Cu), % 1.0 to 3.0
2.8 to 4.0
Iron (Fe), % 63.6 to 73.4
53.7 to 61.3
Manganese (Mn), % 0 to 2.0
0 to 1.0
Molybdenum (Mo), % 0.1 to 0.6
3.8 to 4.5
Nickel (Ni), % 3.5 to 5.5
14.5 to 16.5
Nitrogen (N), % 0.050 to 0.2
0.15 to 0.21
Phosphorus (P), % 0 to 0.035
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.015
0 to 0.030