Stainless steel is often recognized for its resistance to corrosion. But some classes have different magnetic strength. Of the three austenitic steels, stainless steels have the lowest magnetic capabilities. Ferritic and martensitic steels, on the other side are much stronger magnetic capacity, depending on how they are treated.

austenitic

austenitic steels are usually 17 to 25 percent chromium. Although austenitic metals known for their strength and weldability are magnetic permeability is low in this group of stainless steels. There is no presence of the magnetic permeability of metals of the family when austenitic in the annealed condition, reached a state where it is heat treated stainless steel. This is due to the high nickel content in austenitic stainless steels. As a strong cold deformed austenitic type 302 and 304 are slightly ferromagnetic, the highest level of magnetism can be achieved. Cold deformation has no effect on the ability to evoke magnetic metals such as austenitic 316 stainless steel because of its high nickel-chromium ratio.

Back 302 and 304 stainless steel non-magnetic state can be made by applying heat treatment of relief. The ability to achieve the magnetism can be completely eradicated with a complete solution annealed at 1000 to 1150 degrees Celsius.

ferritic

ferritic steels are soft magnetic, which means they are easily magnetized and demagnetized. Soft-magnetic metals in the manufacture of a wide range of products ranging from refrigerators used to power electronic circuits. While other metals are considered effective in the market for the manufacture of soft magnetic components are commonly used ferritic for applications that require resistance to corrosion. Solenoid nuclei and pole pieces are among the products in which the ferritic steels are used.

In comparison with the iron-plated and iron-silicon ferritic steel is considered a material at low cost. Specially designed for soft magnetic components, ferrite type 430FR is known for its high electrical resistance. 430FR This high electrical resistance due to excellent performance in alternating current (AC)-based applications. The ability of magnetic ferritic steels decreases as cold worked. Conversely, these stainless metal retain a permanent magnetism low level when exposed to magnetic fields.

martensitic

How ferritic martensitic stainless steel metal is ferromagnetic. To reach their full potential for corrosion resistance, martensitic steel is hardened, ground and hardened. When magnetized in martensitic steel hardened state will have a capacity permanent magnet.

For more information on the magnetic stainless steel, contact a supplier of stainless steel.

Robin Tackett Own Slice of Stainless, Inc., is the author of this article on Stainless Steel and magnetic stainless steel . Slice of Stainless Steel is a distributor of Cincinnati, Ohio, specialty stainless steel, nickel alloys and small orders quantity of metals.

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