201 stainless steel is a type of austenitic stainless steel that is commonly used in a wide range of applications. It is a low-cost alternative to other types of stainless steel, such as 304 and 316, and is known for its excellent corrosion resistance, high strength, and good formability.
Chemical composition
Element
C
Si
Mn
P
S
Cr
Ni
N
min
–
–
5.5
–
–
16
3.5
–
max
0.15
1
7.5
0.06
0.03
18
5.5
0.25
Note: These values are typical
Mechanical properties
Tensile strength(MPa)
Yield strength(MPa)
Elongation%
Hardness(HRB)
≥535
≥245
≥30
≤100
Note: These values are approximate
Physical properties
Property
Value
Density
7.81 g/cm³
Melting point
1399-1420 °C (2550-2588 °F)
Thermal conductivity
16.2 W/m-K at 100°C
Electrical resistivity
0.73 μΩm
Young’s modulus
200 GPa
Poisson’s ratio
0.29
Coefficient of thermal expansion
16.3 µm/m-K at 0-100°C
Magnetic properties
Non-magnetic (annealed)
Note: These values are approximate
Compared to other austenitic stainless steels, 201 stainless steel has a lower nickel content, which makes it more affordable, but is also slightly less resistant to certain types of corrosion, such as chloride-induced stress corrosion cracking. Widely used in the manufacture of kitchenware, tableware, automotive parts, industrial equipment and many other products that require strength, corrosion resistance and cost-effectiveness.
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