What is Duplex 1.4462?

The alloy of austenite and ferrite makes a form of stainless steel (SS) called Duplex. Duplex is also known under active ingredient number 1.4462. There are a number of advantages of Duplex compared to standard stainless steel:  

  • It can handle higher tensile strength than standard stainless steel. 
  • It offers better resistance to localized corrosion. 

Although there are some alternatives with similar characteristics to Duplex, Duplex has lower production costs. This makes Duplex cost-efficient to use.  

Duplex PD Fasteners Speciale bevestigingsmaterialen
Duplex PD Fasteners Speciale Bevestigingsmaterialen

Characteristics of Duplex 1.4462

By selecting a specific composition stainless steel grades can be produced with a structure consisting of both ferrite and austenite. This group of stainless steel grades is known as Duplex stainless steel. The ratio of ferrite to austenite in Duplex stainless steel is approximately 50:50. Compared to the austenitic stainless steel qualities, Duplex is particularly recognized for its excellent mechanical qualities combined with a high corrosion resistance (up to a temperature of approx. 315ºC). Duplex metals are also easy to weld and to process. Duplex metals are often used in:

  • oil and gas industry;
  • chemistry and petrochemistry;
  • bio industry;
  • food industry;
  • maritime sector;
  • water purification and desalination plants;
  • paper processing industry.

Duplex in your project

Would you like to use Duplex 1.4462 fasteners in your project? Peco Douwes is your partner par excellence. All our products are available in all sizes and in any desired material. Our specialists will be happy to discuss your requirements and the delivery options with you. If you would like to request one or more of our products in Duplex, please contact us. Also, if you want to use different materials, Peco Douwes is your trusted partner for. Also have a look at our information about Super Duplex – 1.4501. 

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Icustomization is required for your project? Our custom-made fasteners are the solution. Please contact our product specialists to discuss the options available