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S31727 Stainless Steel vs. EN 1.4911 Stainless Steel

Both S31727 stainless steel and EN 1.4911 stainless steel are iron alloys. They have 70% 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 1.4911 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 40
11
Fatigue Strength, MPa 240
530
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 78
76
Shear Strength, MPa 430
640
Tensile Strength: Ultimate (UTS), MPa 630
1070
Tensile Strength: Yield (Proof), MPa 270
970

Thermal Properties

Latent Heat of Fusion, J/g 290
270
Maximum Temperature: Corrosion, °C 420
430
Maximum Temperature: Mechanical, °C 1010
700
Melting Completion (Liquidus), °C 1440
1450
Melting Onset (Solidus), °C 1390
1410
Specific Heat Capacity, J/kg-K 470
470
Thermal Expansion, µm/m-K 16
11

Otherwise Unclassified Properties

Base Metal Price, % relative 24
20
Density, g/cm3 8.0
7.9
Embodied Carbon, kg CO2/kg material 4.7
3.4
Embodied Energy, MJ/kg 64
49
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 35
14
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200
120
Resilience: Unit (Modulus of Resilience), kJ/m3 190
2410
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
25
Strength to Weight: Axial, points 22
38
Strength to Weight: Bending, points 20
30
Thermal Shock Resistance, points 14
37

Alloy Composition

Boron (B), % 0
0.0050 to 0.015
Carbon (C), % 0 to 0.030
0.050 to 0.12
Chromium (Cr), % 17.5 to 19
9.8 to 11.2
Cobalt (Co), % 0
5.0 to 7.0
Copper (Cu), % 2.8 to 4.0
0
Iron (Fe), % 53.7 to 61.3
75.7 to 83.8
Manganese (Mn), % 0 to 1.0
0.3 to 1.3
Molybdenum (Mo), % 3.8 to 4.5
0.5 to 1.0
Nickel (Ni), % 14.5 to 16.5
0.2 to 1.2
Niobium (Nb), % 0
0.2 to 0.5
Nitrogen (N), % 0.15 to 0.21
0 to 0.035
Phosphorus (P), % 0 to 0.030
0 to 0.025
Silicon (Si), % 0 to 1.0
0.1 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.015
Tungsten (W), % 0
0 to 0.7
Vanadium (V), % 0
0.1 to 0.4