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AISI 309 Stainless Steel vs. S32001 Stainless Steel

Both AISI 309 stainless steel and S32001 stainless steel are iron alloys. They have 86% 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 309 stainless steel and the bottom bar is S32001 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 34 to 47
28
Fatigue Strength, MPa 250 to 280
370
Poisson's Ratio 0.27
0.28
Shear Modulus, GPa 78
78
Shear Strength, MPa 420 to 470
450
Tensile Strength: Ultimate (UTS), MPa 600 to 710
690
Tensile Strength: Yield (Proof), MPa 260 to 350
510

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
430
Maximum Temperature: Mechanical, °C 980
970
Melting Completion (Liquidus), °C 1450
1420
Melting Onset (Solidus), °C 1400
1370
Specific Heat Capacity, J/kg-K 480
480
Thermal Conductivity, W/m-K 16
15
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 19
12
Density, g/cm3 7.8
7.7
Embodied Carbon, kg CO2/kg material 3.6
2.6
Embodied Energy, MJ/kg 51
37
Embodied Water, L/kg 170
150

Common Calculations

PREN (Pitting Resistance) 23
23
Resilience: Ultimate (Unit Rupture Work), MJ/m3 200 to 230
180
Resilience: Unit (Modulus of Resilience), kJ/m3 170 to 310
660
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 25
25
Strength to Weight: Axial, points 21 to 25
25
Strength to Weight: Bending, points 20 to 23
23
Thermal Diffusivity, mm2/s 4.3
4.0
Thermal Shock Resistance, points 14 to 16
19

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 22 to 24
19.5 to 21.5
Copper (Cu), % 0
0 to 1.0
Iron (Fe), % 58 to 66
66.6 to 75.5
Manganese (Mn), % 0 to 2.0
4.0 to 6.0
Molybdenum (Mo), % 0
0 to 0.6
Nickel (Ni), % 12 to 15
1.0 to 3.0
Nitrogen (N), % 0
0.050 to 0.17
Phosphorus (P), % 0 to 0.045
0 to 0.040
Silicon (Si), % 0 to 0.75
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030