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AISI 309S Stainless Steel vs. S20161 Stainless Steel

Both AISI 309S stainless steel and S20161 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 85% of their average alloy composition in common. There are 34 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 AISI 309S 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, % 42
46
Fatigue Strength, MPa 210
360
Poisson's Ratio 0.27
0.28
Reduction in Area, % 51
45
Shear Modulus, GPa 78
76
Shear Strength, MPa 400
690
Tensile Strength: Ultimate (UTS), MPa 580
980
Tensile Strength: Yield (Proof), MPa 230
390

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Corrosion, °C 440
410
Maximum Temperature: Mechanical, °C 1080
870
Melting Completion (Liquidus), °C 1420
1380
Melting Onset (Solidus), °C 1370
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 15
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 19
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 3.6
2.7
Embodied Energy, MJ/kg 51
39
Embodied Water, L/kg 170
130

Common Calculations

PREN (Pitting Resistance) 23
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
360
Resilience: Unit (Modulus of Resilience), kJ/m3 140
390
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 21
36
Strength to Weight: Bending, points 20
29
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 13
22

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 22 to 24
15 to 18
Iron (Fe), % 58.1 to 66
65.6 to 73.9
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Nickel (Ni), % 12 to 15
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
3.0 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.040