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EN 1.4031 Stainless Steel vs. S20161 Stainless Steel

Both EN 1.4031 stainless steel and S20161 stainless steel are iron alloys. They have 84% of their average alloy composition in common. There are 32 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is EN 1.4031 stainless steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 190
190
Elongation at Break, % 11 to 13
46
Fatigue Strength, MPa 220 to 400
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
76
Shear Strength, MPa 400 to 540
690
Tensile Strength: Ultimate (UTS), MPa 670 to 900
980
Tensile Strength: Yield (Proof), MPa 390 to 730
390

Thermal Properties

Latent Heat of Fusion, J/g 280
330
Maximum Temperature: Corrosion, °C 390
410
Maximum Temperature: Mechanical, °C 770
870
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 30
15
Thermal Expansion, µm/m-K 11
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.1
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 3.7
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
12
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 1.9
2.7
Embodied Energy, MJ/kg 27
39
Embodied Water, L/kg 100
130

Common Calculations

PREN (Pitting Resistance) 14
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 77 to 94
360
Resilience: Unit (Modulus of Resilience), kJ/m3 380 to 1360
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 24 to 32
36
Strength to Weight: Bending, points 22 to 27
29
Thermal Diffusivity, mm2/s 8.1
4.0
Thermal Shock Resistance, points 23 to 32
22

Alloy Composition

Carbon (C), % 0.36 to 0.42
0 to 0.15
Chromium (Cr), % 12.5 to 14.5
15 to 18
Iron (Fe), % 83 to 87.1
65.6 to 73.9
Manganese (Mn), % 0 to 1.0
4.0 to 6.0
Nickel (Ni), % 0
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
3.0 to 4.0
Sulfur (S), % 0 to 0.015
0 to 0.040