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S40910 Stainless Steel vs. S82011 Stainless Steel

Both S40910 stainless steel and S82011 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 85% 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 S40910 stainless steel and the bottom bar is S82011 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 160
250
Elastic (Young's, Tensile) Modulus, GPa 190
200
Elongation at Break, % 23
34
Fatigue Strength, MPa 130
410
Poisson's Ratio 0.28
0.27
Shear Modulus, GPa 75
78
Shear Strength, MPa 270
490
Tensile Strength: Ultimate (UTS), MPa 430
730
Tensile Strength: Yield (Proof), MPa 190
510

Thermal Properties

Latent Heat of Fusion, J/g 270
290
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 710
1010
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1410
1380
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 26
15
Thermal Expansion, µm/m-K 10
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 7.0
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.0
2.6
Embodied Energy, MJ/kg 28
37
Embodied Water, L/kg 94
150

Common Calculations

PREN (Pitting Resistance) 11
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 80
220
Resilience: Unit (Modulus of Resilience), kJ/m3 94
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 16
27
Strength to Weight: Bending, points 16
24
Thermal Diffusivity, mm2/s 6.9
4.0
Thermal Shock Resistance, points 16
20

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.030
Chromium (Cr), % 10.5 to 11.7
20.5 to 23.5
Copper (Cu), % 0
0 to 0.5
Iron (Fe), % 85 to 89.5
68.6 to 76.3
Manganese (Mn), % 0 to 1.0
2.0 to 3.0
Molybdenum (Mo), % 0
0.1 to 1.0
Nickel (Ni), % 0 to 0.5
1.0 to 2.0
Niobium (Nb), % 0 to 0.17
0
Nitrogen (N), % 0 to 0.030
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 0.020
0 to 0.020
Titanium (Ti), % 0 to 0.5
0