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AISI 446 Stainless Steel vs. S21600 Stainless Steel

Both AISI 446 stainless steel and S21600 stainless steel are iron alloys. Both are furnished in the annealed condition. They have 84% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is AISI 446 stainless steel and the bottom bar is S21600 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
200
Elastic (Young's, Tensile) Modulus, GPa 200
200
Elongation at Break, % 23
46
Fatigue Strength, MPa 200
360
Poisson's Ratio 0.27
0.28
Reduction in Area, % 50
56
Rockwell B Hardness 84
86
Shear Modulus, GPa 79
79
Shear Strength, MPa 360
500
Tensile Strength: Ultimate (UTS), MPa 570
710
Tensile Strength: Yield (Proof), MPa 300
390

Thermal Properties

Latent Heat of Fusion, J/g 290
290
Maximum Temperature: Corrosion, °C 440
420
Maximum Temperature: Mechanical, °C 1180
990
Melting Completion (Liquidus), °C 1510
1420
Melting Onset (Solidus), °C 1430
1380
Specific Heat Capacity, J/kg-K 490
480
Thermal Expansion, µm/m-K 11
17

Otherwise Unclassified Properties

Base Metal Price, % relative 12
17
Density, g/cm3 7.7
7.7
Embodied Carbon, kg CO2/kg material 2.4
3.6
Embodied Energy, MJ/kg 35
50
Embodied Water, L/kg 150
160

Common Calculations

PREN (Pitting Resistance) 27
34
Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
270
Resilience: Unit (Modulus of Resilience), kJ/m3 230
370
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 26
25
Strength to Weight: Axial, points 21
25
Strength to Weight: Bending, points 20
23
Thermal Shock Resistance, points 19
15

Alloy Composition

Carbon (C), % 0 to 0.2
0 to 0.080
Chromium (Cr), % 23 to 27
17.5 to 22
Iron (Fe), % 69.2 to 77
57.6 to 67.8
Manganese (Mn), % 0 to 1.5
7.5 to 9.0
Molybdenum (Mo), % 0
2.0 to 3.0
Nickel (Ni), % 0 to 0.75
5.0 to 7.0
Nitrogen (N), % 0 to 0.25
0.25 to 0.5
Phosphorus (P), % 0 to 0.040
0 to 0.045
Silicon (Si), % 0 to 1.0
0 to 0.75
Sulfur (S), % 0 to 0.030
0 to 0.030