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S31727 Stainless Steel vs. EN 1.4122 Stainless Steel

Both S31727 stainless steel and EN 1.4122 stainless steel are iron alloys. They have 77% 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 S31727 stainless steel and the bottom bar is EN 1.4122 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
14
Fatigue Strength, MPa 240
260 to 360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
77
Shear Strength, MPa 430
480 to 520
Tensile Strength: Ultimate (UTS), MPa 630
790 to 850
Tensile Strength: Yield (Proof), MPa 270
450 to 630

Thermal Properties

Latent Heat of Fusion, J/g 290
280
Maximum Temperature: Corrosion, °C 420
400
Maximum Temperature: Mechanical, °C 1010
870
Melting Completion (Liquidus), °C 1440
1440
Melting Onset (Solidus), °C 1390
1400
Specific Heat Capacity, J/kg-K 470
480
Thermal Expansion, µm/m-K 16
10

Otherwise Unclassified Properties

Base Metal Price, % relative 24
9.5
Density, g/cm3 8.0
7.7
Embodied Carbon, kg CO2/kg material 4.7
2.4
Embodied Energy, MJ/kg 64
33
Embodied Water, L/kg 180
120

Common Calculations

PREN (Pitting Resistance) 35
20
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
93 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 190
520 to 1000
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
28 to 31
Strength to Weight: Bending, points 20
25 to 26
Thermal Shock Resistance, points 14
28 to 30

Alloy Composition

Carbon (C), % 0 to 0.030
0.33 to 0.45
Chromium (Cr), % 17.5 to 19
15.5 to 17.5
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
77.2 to 83.4
Manganese (Mn), % 0 to 1.0
0 to 1.5
Molybdenum (Mo), % 3.8 to 4.5
0.8 to 1.3
Nickel (Ni), % 14.5 to 16.5
0 to 1.0
Nitrogen (N), % 0.15 to 0.21
0
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.015