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EN 1.4981 Stainless Steel vs. S20161 Stainless Steel

Both EN 1.4981 stainless steel and S20161 stainless steel are iron alloys. They have 86% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4981 stainless steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
250
Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 39
46
Fatigue Strength, MPa 210
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
76
Shear Strength, MPa 420
690
Tensile Strength: Ultimate (UTS), MPa 610
980
Tensile Strength: Yield (Proof), MPa 240
390

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Corrosion, °C 520
410
Maximum Temperature: Mechanical, °C 940
870
Melting Completion (Liquidus), °C 1440
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 470
490
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 16
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 7.9
7.5
Embodied Carbon, kg CO2/kg material 4.8
2.7
Embodied Energy, MJ/kg 67
39
Embodied Water, L/kg 150
130

Common Calculations

PREN (Pitting Resistance) 22
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
360
Resilience: Unit (Modulus of Resilience), kJ/m3 150
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 24
26
Strength to Weight: Axial, points 21
36
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 14
22

Alloy Composition

Carbon (C), % 0.040 to 0.1
0 to 0.15
Chromium (Cr), % 15.5 to 17.5
15 to 18
Iron (Fe), % 59.6 to 66.7
65.6 to 73.9
Manganese (Mn), % 0 to 1.5
4.0 to 6.0
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
4.0 to 6.0
Niobium (Nb), % 0.4 to 1.2
0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.035
0 to 0.040
Silicon (Si), % 0.3 to 0.6
3.0 to 4.0
Sulfur (S), % 0 to 0.015
0 to 0.040