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    KUTUP METAL

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    Stainless Steel Types

    Our Stainless Steel Products

    They are low carbon Stainless Steels containing 10.5% -18% chromium.

    They are magnetic.

    Increasing the amount of chromium increases the corrosion resistance.

    It is more difficult than austenitic steels in terms of forming.

    Usage places Decorative, kitchen equipment, exhaust parts, automotive industry etc.

    Martensitic Stainless Steels containing less than 16% chromium are magnetic.

    Their ability to be welded is low.

    They contain around 0.3% carbon.

    They can be hardened by heat treatment with a high amount of carbon.

    The most important feature of Austenitic Stainless steel is that it is not magnetic. Its basic composition is 18% chromium and 8% nickel. It is the most preferred steel in terms of its mechanical properties, forming and corrosion resistance properties.

    They constitute 70% of the total stainless steel production. 304 and 316 are the most commonly used ones. It is easy to clean and maintain. It is hygienic.

    Generally, these steels, which contain equal proportions of ferrite and austenite in their structures, differ in corrosion performance according to the alloys they contain.

    Duplex stainless steels have a higher strength than other austenitic stainless steels, but they have a better resistance to localized corrosion, especially to nucleation, crack and stress corrosion than austenitics.

    Duplex stainless steels contain a high percentage of chromium, between 18% and 28%, and nickel between 4.5% and 8%.

    They are more resistant than austenitics thanks to their lower nickel content than molybdenum and austenitics, which are up to a maximum of 5%.

    The weakest feature of duplex stainless steels is that they break at high temperatures and very low temperatures. Especially if it is worked above 300 ° C and below -50 ° C even for a short time, duplex steels become brittle and the need for re-annealing occurs.

    The most widely known duplex stainless steel grade is 2205 grade.

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