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S32906 Stainless Steel vs. AISI 446 Stainless Steel

Both S32906 stainless steel and AISI 446 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 87% of their average alloy composition in common. There are 33 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.

For each property being compared, the top bar is S32906 stainless steel and the bottom bar is AISI 446 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 270
190
Elastic (Young's, Tensile) Modulus, GPa 210
200
Elongation at Break, % 28
23
Fatigue Strength, MPa 460
200
Poisson's Ratio 0.27
0.27
Shear Modulus, GPa 81
79
Shear Strength, MPa 550
360
Tensile Strength: Ultimate (UTS), MPa 850
570
Tensile Strength: Yield (Proof), MPa 620
300

Thermal Properties

Latent Heat of Fusion, J/g 300
290
Maximum Temperature: Corrosion, °C 460
440
Maximum Temperature: Mechanical, °C 1100
1180
Melting Completion (Liquidus), °C 1430
1510
Melting Onset (Solidus), °C 1380
1430
Specific Heat Capacity, J/kg-K 480
490
Thermal Conductivity, W/m-K 13
17
Thermal Expansion, µm/m-K 13
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
1.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.3

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 3.7
2.4
Embodied Energy, MJ/kg 52
35
Embodied Water, L/kg 190
150

Common Calculations

PREN (Pitting Resistance) 41
27
Resilience: Ultimate (Unit Rupture Work), MJ/m3 220
110
Resilience: Unit (Modulus of Resilience), kJ/m3 950
230
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
26
Strength to Weight: Axial, points 30
21
Strength to Weight: Bending, points 26
20
Thermal Diffusivity, mm2/s 3.6
4.6
Thermal Shock Resistance, points 23
19

Alloy Composition

Carbon (C), % 0 to 0.030
0 to 0.2
Chromium (Cr), % 28 to 30
23 to 27
Copper (Cu), % 0 to 0.8
0
Iron (Fe), % 56.6 to 63.6
69.2 to 77
Manganese (Mn), % 0.8 to 1.5
0 to 1.5
Molybdenum (Mo), % 1.5 to 2.6
0
Nickel (Ni), % 5.8 to 7.5
0 to 0.75
Nitrogen (N), % 0.3 to 0.4
0 to 0.25
Phosphorus (P), % 0 to 0.030
0 to 0.040
Silicon (Si), % 0 to 0.5
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.030