Duplex Steel 2205 Round Bars
Duplex Round Bar is made to be stronger than typical austenitic stainless steels like Type 304 or 316 and to offer improved corrosion resistance, notably against chloride stress corrosion and chloride pitting corrosion. A super duplex grade of duplex stainless steel has a minimum 0.2 percent proof strength of 550N/mm2, while a duplex steel bar has a minimum of 450N/mm2.
Lean duplex round bar, 22 percent Cr duplex steel hex bar and 25 percent Cr super duplex round bar are the three main groups of Duplex Steel 2205 Round Bars. Even higher alloyed, hyper duplex grades have been developed. This division is based primarily on the alloy's level of alloying, for example in terms of "PREN" (pitting resistance equivalence number), a measure of the alloy's resistance to pitting corrosion.
PREN for duplex steel bars can be computed using the following straightforward formula: PREN = percent Cr + 3.3 percent Mo + 16 percent N; occasionally, a 1.65-factor adjustment for W is also added. A duplex stainless steel round bar, a super duplex hex bar, and a hyper duplex round bar all have PREN values between 40 and 45. has a PREN less than 40. Lean grades often have less nickel and are therefore less expensive.
Benefits of Duplex Steel 2205 Round Bars
high resistance to corrosion in general.
In situations with chloride, they exhibit great resistance to stress corrosion cracking.
excellent resistance to corrosion in crevices and pitting.
extremely high mechanical toughness.
Physical characteristics that are advantageous for design.
Excellent weldability and high resistance to corrosion, erosion, and fatigue.
Excellent mechanical properties allow for the construction of objects that are smaller, lighter, and require less welding.
Uses of Duplex Steel Round Bars
engineering for pipelines.
oil and gas sector.
engineering with machines.
maritime sector.
management of wastewater.
chemical sector.
the petrochemical sector.
power sector.
aerospace sector.
industry of food processing, among many others.
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