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S32803 Stainless Steel vs. S20161 Stainless Steel

Both S32803 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 S32803 stainless steel and the bottom bar is S20161 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 210
250
Elastic (Young's, Tensile) Modulus, GPa 210
190
Elongation at Break, % 18
46
Fatigue Strength, MPa 350
360
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 81
76
Shear Strength, MPa 420
690
Tensile Strength: Ultimate (UTS), MPa 680
980
Tensile Strength: Yield (Proof), MPa 560
390

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Corrosion, °C 510
410
Maximum Temperature: Mechanical, °C 1100
870
Melting Completion (Liquidus), °C 1450
1380
Melting Onset (Solidus), °C 1400
1330
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 11
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 19
12
Density, g/cm3 7.7
7.5
Embodied Carbon, kg CO2/kg material 3.7
2.7
Embodied Energy, MJ/kg 53
39
Embodied Water, L/kg 180
130

Common Calculations

PREN (Pitting Resistance) 36
19
Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
360
Resilience: Unit (Modulus of Resilience), kJ/m3 760
390
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 25
36
Strength to Weight: Bending, points 22
29
Thermal Diffusivity, mm2/s 4.4
4.0
Thermal Shock Resistance, points 22
22

Alloy Composition

Carbon (C), % 0 to 0.015
0 to 0.15
Chromium (Cr), % 28 to 29
15 to 18
Iron (Fe), % 62.9 to 67.1
65.6 to 73.9
Manganese (Mn), % 0 to 0.5
4.0 to 6.0
Molybdenum (Mo), % 1.8 to 2.5
0
Nickel (Ni), % 3.0 to 4.0
4.0 to 6.0
Niobium (Nb), % 0.15 to 0.5
0
Nitrogen (N), % 0 to 0.020
0.080 to 0.2
Phosphorus (P), % 0 to 0.020
0 to 0.040
Silicon (Si), % 0 to 0.55
3.0 to 4.0
Sulfur (S), % 0 to 0.0035
0 to 0.040