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AISI 301 Stainless Steel vs. S82031 Stainless Steel

Both AISI 301 stainless steel and S82031 stainless steel are iron alloys. They have a moderately high 95% of their average alloy composition in common. There are 32 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 AISI 301 stainless steel and the bottom bar is S82031 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 7.4 to 46
39
Fatigue Strength, MPa 210 to 600
490
Poisson's Ratio 0.28
0.28
Shear Modulus, GPa 77
78
Shear Strength, MPa 410 to 860
540
Tensile Strength: Ultimate (UTS), MPa 590 to 1460
780
Tensile Strength: Yield (Proof), MPa 230 to 1080
570

Thermal Properties

Latent Heat of Fusion, J/g 280
290
Maximum Temperature: Corrosion, °C 410
430
Maximum Temperature: Mechanical, °C 840
980
Melting Completion (Liquidus), °C 1420
1430
Melting Onset (Solidus), °C 1400
1390
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 17
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.4
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 2.7
2.8
Embodied Energy, MJ/kg 39
39
Embodied Water, L/kg 130
150

Common Calculations

PREN (Pitting Resistance) 18
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 99 to 300
280
Resilience: Unit (Modulus of Resilience), kJ/m3 130 to 2970
820
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 52
28
Strength to Weight: Bending, points 20 to 37
24
Thermal Diffusivity, mm2/s 4.2
3.9
Thermal Shock Resistance, points 12 to 31
22

Alloy Composition

Carbon (C), % 0 to 0.15
0 to 0.050
Chromium (Cr), % 16 to 18
19 to 22
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 70.7 to 78
68 to 78.3
Manganese (Mn), % 0 to 2.0
0 to 2.5
Molybdenum (Mo), % 0
0.6 to 1.4
Nickel (Ni), % 6.0 to 8.0
2.0 to 4.0
Nitrogen (N), % 0 to 0.1
0.14 to 0.24
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 1.0
0 to 0.8
Sulfur (S), % 0 to 0.030
0 to 0.0050