Guide On Duplex Steel Round Bars

Posted By nav bharattubes on Oct 6, 2022 | 0 comments

Nav Bharat tubes is a supplier and exporter of  Duplex Steel Round Bars World Wide. We are renowned as a reliable supplier offering these round bars in various standards and specifications. To achieve high productivity, we use high-quality raw materials to manufacture and develop a flawless and flawless product. Our team is full of the hardworking employee, who does work as a professional. The whole process is under the control of our highly qualified professional team.

Duplex Steel Round Bars

  • Super Duplex Round Bar is designed to provide better corrosion resistance, particularly chloride stress corrosion and chloride pitting corrosion, and higher strength than standard austenitic stainless steels such as Type 304 or 316. A 22%Cr duplex stainless steel round bar has a minimum 0.2% proof strength of some 450N/mm2 and a Duplex steel bar, a super duplex grade a minimum of 550N/mm2.
  • Duplex steel round bars can be divided into three main groups; lean duplex round bar, 22%Cr duplex steel hex bar, and 25%Cr super duplex round bar, and even higher alloyed, hyper duplex grades have been developed, this division is based primarily on the alloy’s alloying level, eg in terms of ‘PREN’ (pitting resistance equivalence number), a measure of the alloy’s resistance to pitting corrosion.
  • Duplex Steel Bar PREN is calculated from a simple formula: PREN = %Cr + 3.3%Mo +16%N and an allowance for W is sometimes made, having a factor of 1.65. A duplex stainless steel round bar has a PREN less than 40; a super duplex hex bar a PREN between 40 and 45 and a hyper duplex round bar a PREN above 45, whilst the lean grades typically have lower nickel and hence lower price.

Features of Duplex Steel Round Bars

  • High resistance to general corrosion.
  • They have excellent resistance to stress corrosion cracking in chloride-containing environments.
  • Excellent resistance to pitting and crevice corrosion.
  • Very high mechanical strength.
  • Physical properties that offer design advantages.
  • High resistance to erosion corrosion and corrosion fatigue good weldability.
  • Excellent mechanical properties that allow for lighter constructions, more compact design, and less welding.

Applications and Uses of Duplex Steel Round Bars

  • It is used in Pipeline engineering.
  • Duplex Steel Round Bars Uses for Oil & gas industry.
  • The use of double steel round bar in mechanical engineering.
  • Duplex Steel Round Bars are also very common in the Marine industry.
  • Duplex Steel Round Bars Uses for Wastewater management.
  • Duplex Steel Round Bars Uses for Chemical industry.
  • Application of duplex round bars for the petrochemical industry.
  • Duplex Steel Round Bars Uses for the Power industry.
  • Using double-sided steel round bar for the aerospace industry.
  • Duplex Steel Round Bars Uses for Food processing industry and many more.
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