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Duplex & Super Duplex Pipes & Tubes

Pioneers in the industry, we offer duplex pipes, super duplex pipes and super duplex stainless steel pipe uns s32750/2507 from India.

Duplex Pipes

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Duplex Pipes
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Duplex alloys were originally created to combat corrosion problems caused by chloride-bearing cooling waters and other aggressive chemical process fluids. Called Duplex because of its mixed microstructure with about equal proportions of ferrite and austenite, duplex stainless steels are a family of grades, which range in corrosion performance depending on their alloy content.

The chemical composition based on high contents of Cr and Mo, improves intergranular and pitting corrosion resistance, respectively. Additions of nitrogen can promote structural hardening by interstitial solid solution mechanism, which raises the yield strength and ultimate strength values without impairing toughness. Moreover, the two-phase microstructure guarantees higher resistance to pitting and stress corrosion cracking in comparison with conventional stainless steels. 

We manufacturers and exports wide range of duplex tube and super duplex Tube , duplex Seamless Pipe and super duplex Seamless Pipe , duplex Welded/ERW Pipe and super duplex Welded / ERW Pipe , duplex Sheet and super duplex Sheet , duplex plate and super duplex Plate , duplex coil and super duplex Coil , duplex flanges and super duplex Flanges , duplex fasteners and super duplex fasteners , duplex socket weld fittings and super duplex Socket weld Fittings , duplex ferrule fittings and super duplex ferrule fittings , duplex buttweld fittings and super duplex Buttweld fittings Like cap , elbow , tee. 


The various Alloys

The development of the Duplex stainless steels has continued, graded for their corrosion performance depending on their alloy content. Today, modern duplex stainless steel can be divided into four groups : 

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Super Duplex Pipes

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Super Duplex Pipes
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super duplex steels are formed from an approximately 50/50 mixture of austenitic and ferritic phases and are sometimes referred to as austenitic-ferritic stainless steels.
Our range of  super duplex steel pipes  are manufactured from quality raw materials and is highly demanded by our clients spread across the globe. Our range of super duplex steel tubes are widely used as heat exchangers in refinery industries, petrochemical plants, paper & pulp industries, sugar & beverage industries.
Super duplex stainless steels are generally more complex, more highly alloyed materials with PREn (Pitting Resistance Equivalent number) = 40.0 and offer even higher strength and corrosion resistance making them suitable for very demanding applications
 
Super Duplex Steel Seamless Pipe 
Super Duplex Stainless Steels are improved version of Duplex (Austenitic-Ferritic) St/St,with the addition of typically Chrome (Cr) 25% Nickel (Ni) 7% Molybdenum (Mo) 3% Sometimes Copper (Cu) 1% or Tungsten (W) 1%.
Our clients can avail from us an extensive range of Super-Duplex Seamless Pipe, This Seamless Pipe are manufacture by raw material products. These are in conformation with the industry standards and are known for their application specific design, durability & corrosion resistance

Application
  • Chemical Process Industry.
  • Marine & shipbuilding.
  • Oil & Gas Industry.
  • Pollution Control.
  • Paper & Pulp Industry.
  • Food Industry.
  • Agrochemical - Fertiliser Production
Chemical Composition

TYPICAL ANALYSIS 

 

C.

Cr.

Cu.

Mn.

Mo.

N.

Ni.

P.

S.

Si.

W.

0.03%

24.00-

0.50-

1.00%

3.00-

0.20-

6.00-

0.035%

0.015%

1.00%

0.50-

max

26.00%

1.00%

max

4.00%

0.30%

8.00%

max

max

max

1.00%


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Super Duplex Stainless Steel Pipe UNS S32750/2507

Super Duplex Stainless Steel Pipe UNS S32750/2507
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Hallmark Metallica
Rakesh Jain (Sales Director)
No. 394, Lamington Road 39/41, 4th Floor, Grant Road,
Mumbai - 400004, Maharashtra, India
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