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AISI 446 Stainless Steel vs. S32205 Stainless Steel

Both AISI 446 stainless steel and S32205 stainless steel are iron alloys. Both are furnished in the annealed condition. They have a moderately high 91% of their average alloy composition in common. There are 34 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 446 stainless steel and the bottom bar is S32205 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
260
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
28
Fatigue Strength, MPa 200
370
Poisson's Ratio 0.27
0.27
Reduction in Area, % 50
51
Shear Modulus, GPa 79
80
Shear Strength, MPa 360
480
Tensile Strength: Ultimate (UTS), MPa 570
740
Tensile Strength: Yield (Proof), MPa 300
510

Thermal Properties

Latent Heat of Fusion, J/g 290
300
Maximum Temperature: Corrosion, °C 440
440
Maximum Temperature: Mechanical, °C 1180
1070
Melting Completion (Liquidus), °C 1510
1450
Melting Onset (Solidus), °C 1430
1400
Specific Heat Capacity, J/kg-K 490
480
Thermal Conductivity, W/m-K 17
15
Thermal Expansion, µm/m-K 11
13

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
18
Density, g/cm3 7.7
7.8
Embodied Carbon, kg CO2/kg material 2.4
3.7
Embodied Energy, MJ/kg 35
50
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 27
36
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
190
Resilience: Unit (Modulus of Resilience), kJ/m3 230
630
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
26
Strength to Weight: Bending, points 20
23
Thermal Diffusivity, mm2/s 4.6
4.0
Thermal Shock Resistance, points 19
20

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.030
Chromium (Cr), % 23 to 27
22 to 23
Iron (Fe), % 69.2 to 77
63.7 to 70.4
Manganese (Mn), % 0 to 1.5
0 to 2.0
Molybdenum (Mo), % 0
3.0 to 3.5
Nickel (Ni), % 0 to 0.75
4.5 to 6.5
Nitrogen (N), % 0 to 0.25
0.14 to 0.2
Phosphorus (P), % 0 to 0.040
0 to 0.030
Silicon (Si), % 0 to 1.0
0 to 1.0
Sulfur (S), % 0 to 0.030
0 to 0.020