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S38100 Stainless Steel vs. S20161 Stainless Steel

Both S38100 stainless steel and S20161 stainless steel are iron alloys. Both are furnished in the annealed condition. 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 (3, in this case) are not shown.

For each property being compared, the top bar is S38100 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, % 45
46
Fatigue Strength, MPa 210
360
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 76
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 320
330
Maximum Temperature: Corrosion, °C 410
410
Maximum Temperature: Mechanical, °C 970
870
Melting Completion (Liquidus), °C 1400
1380
Melting Onset (Solidus), °C 1350
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 2.3
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.8
7.5
Embodied Carbon, kg CO2/kg material 3.8
2.7
Embodied Energy, MJ/kg 54
39
Embodied Water, L/kg 160
130

Common Calculations

PREN (Pitting Resistance) 18
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 210
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), % 17 to 19
15 to 18
Iron (Fe), % 57.9 to 64
65.6 to 73.9
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Nickel (Ni), % 17.5 to 18.5
4.0 to 6.0
Nitrogen (N), % 0
0.080 to 0.2
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 1.5 to 2.5
3.0 to 4.0
Sulfur (S), % 0 to 0.030
0 to 0.040