2013年12月2日星期一

Experts teach you the identification of stainless steel with a magnet

Sometimes sunny and sometimes rainy weather recently , the home of the stainless steel security mesh and balcony rails many residents through sun and rain , rust stains appear , therefore residents doubt , why stainless steel will rust ?
    North , who lives a mile long mound Ms. Foo , by the end of July at a price of 60 yuan per square meter installed stainless steel windows, but after just two weeks, she was found to have the rust stains on the new stainless steel security windows. She found a loaded anti-theft window shop owner request a replacement , but the store owner said they did not assume any responsibility , and told Ms. Foo unless it is on the hundred dollars one square meter stainless steel anti-theft window , magnetic separator or certainly rust. She was very strange , why would rust stainless steel it ?

    Yesterday around 11:00 , the reporter went along Mingxiu East , North Lake Road in stainless steel material learned more concentrated , with stainless steel doors and other building materials are just as high, medium and low-grade and high-quality and low-quality of the points, the price per square meters from tens of dollars to 300 dollars. Sau Ming Road, operating a stainless steel boss said after the oxide layer fillet surface is oxidized when assembling doors away, the welding of stainless steel is not only possible rust. In addition, the poor quality of the material will rust .

    ■ Tips

    How to identify lifting magnet stainless steel Nanning Deputy Chief of Quality and Technical Supervision standardization Colin told reporters , "stainless steel " is just a generic name of the standard is " acid and alkali steel " stainless steel is chrome on the basis of ordinary steel , nickel and other metals elements and steel products , nickel, molybdenum , titanium and other metal elements made ​​content is higher, the better the quality of stainless steel . The traditional identification methods magnetic tools is to use a magnet suction , magnetic smaller better the quality.

    Good quality and high-grade stainless steel doors and windows generally light, bending of the strong, small deformation, color shiny and smooth , and thicker than the thickness magnetic coat hooks of the poor quality of some . In addition, a wide range of stainless steel window profiles , different even though the same profile, because the manufacturers optional steel liner , accessories, hardware, different level of processing , installation and service levels , quality windows and doors will have a greater difference .

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