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S32101 Stainless Steel vs. S82011 Stainless Steel

Both S32101 stainless steel and S82011 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a very high 97% of their average alloy composition in common.

For each property being compared, the top bar is S32101 stainless steel and the bottom bar is S82011 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 260
250
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34
34
Fatigue Strength, MPa 400
410
Poisson's Ratio 0.28
0.27
Rockwell C Hardness 27
27
Shear Modulus, GPa 78
78
Shear Strength, MPa 490
490
Tensile Strength: Ultimate (UTS), MPa 740
730
Tensile Strength: Yield (Proof), MPa 500
510

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 430
430
Maximum Temperature: Mechanical, °C 1000
1010
Melting Completion (Liquidus), °C 1420
1420
Melting Onset (Solidus), °C 1370
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 15
15
Thermal Expansion, µm/m-K 13
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.6
2.6
Embodied Energy, MJ/kg 38
37
Embodied Water, L/kg 150
150

Common Calculations

PREN (Pitting Resistance) 27
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 230
220
Resilience: Unit (Modulus of Resilience), kJ/m3 640
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 27
27
Strength to Weight: Bending, points 24
24
Thermal Diffusivity, mm2/s 4.0
4.0
Thermal Shock Resistance, points 20
20

Alloy Composition

Carbon (C), % 0 to 0.040
0 to 0.030
Chromium (Cr), % 21 to 22
20.5 to 23.5
Copper (Cu), % 0.1 to 0.8
0 to 0.5
Iron (Fe), % 67.3 to 73.3
68.6 to 76.3
Manganese (Mn), % 4.0 to 6.0
2.0 to 3.0
Molybdenum (Mo), % 0.1 to 0.8
0.1 to 1.0
Nickel (Ni), % 1.4 to 1.7
1.0 to 2.0
Nitrogen (N), % 0.2 to 0.25
0.15 to 0.27
Phosphorus (P), % 0 to 0.040
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020