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Stainless steel flange material

时间:2019-07-17浏览:

The material of the stainless steel flange is made of different models and different uses and chemical compositions. Stainless steel can be roughly classified by use, chemical composition and metallographic structure.
  First, the stainless steel flange is classified by chemical composition: 1. CR series: ferrite series, martensite series 2. CR-NI series: austenite series, abnormal series, precipitation hardening series.
  Second, the classification of stainless steel flanges by metallographic structure: 1, austenitic stainless steel 2, ferritic stainless steel 3, martensitic stainless steel 4, duplex stainless steel 5, precipitation hardened stainless steel
  Third, the stainless steel flange has the following materials:
  1, material 301 - good ductility, for flange molding products, it can also be quickly hardened by mechanical processing, good weldability, wear resistance and fatigue strength better than 304 stainless steel.
  2, material 302 - corrosion resistance is the same as 304, because the carbon content is relatively high and the strength is better.
  3, material 303 - by adding a small amount of sulfur, phosphorus to make it easier to cut than 304.
  4, material 304 - general model; that is 18/8 stainless steel.
  5, material 309 - better temperature resistance than 304.
  6, material 316 - after 304, the second most widely used steel grade
  7. Material 321 - In addition to the risk of corrosion of the weld of the material due to the addition of titanium, the performance is similar to that of the 304.400 series - ferritic and martensitic stainless steel.
  8, material 408 - good heat resistance, weak corrosion resistance.

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