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Duplex & Super Duplex Steel

Manufacturer of a wide range of products which include astm a312 duplex steel uns s31803 pipe and super duplex steel pipe.

Astm A312 Duplex Steel UNS S31803 Pipe

Astm A312 Duplex Steel UNS S31803 Pipe
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Approx. Rs 450 / Kg
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Product Details:
UNS NumberS31803/S32205
Size1/4" - 48"
Nominal Bore1/4" - 48"
Steel GradeS32205
Unit Pipe Length3 meter, Cut to length, 6 meter

UNS S31803
UNS S31803 Duplex Seamless Pipe
ASTM A790 Duplex Seamless Pipe 32101,
UNS S32304,S32205,S32750,S32760
ASTM A790 UNS S31803 Duplex Seamless Pipe

Additional Information:
  • Delivery Time: READY STOCK
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Super Duplex Steel Pipe

Approx. Price: Rs 1,500 / Piece
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Product Details:
Minimum Order Quantity50 Piece
UNS NumberS32750/S32760, 2507
Nominal Bore1/2" - 32"
BrandAlloyed Sustainables LLP
Steel Grade2507
Unit Pipe Length6 meter, 3 meter
I Deal InNew and Second Hand
Welded Pipes and Tubes Sizes1/2" - 32"
Seamless Pipes and Tubes Sizes1/2" - 24"
Manufactured ByAlloyed Sustainables LLP
Country of OriginMade in India

Alloyed Sustainables LLP Super Duplex Pipes


Duplex stainless steels are graded for their corrosion performance, normally determined by their alloy content. Super-Duplex falls under this family of grades. The term was first used in the 1980s and was used to classify Duplex that had a pitting resistance of >40 (based on Cr% + 3.3Mo% + 16N%).

Super Duplex has all the benefits of other duplex steels, specifically the strength benefits of their biphasic structural composition of equal parts austenitic and ferritic stainless steel. This microstructure makes all duplex steels around twice as strong as regular single structure ferritic or austenitic steels, but Super Duplex has a higher chromium and molybdenum content, giving it considerably increased resistance to corrosion than its counterparts.


Super Duplex vs Duplex 

Super duplex and duplex stainless steels both have the same three metals in common, these metals are present at different levels. Duplex consists of 22% chromium, 5-6% nickel and 3% molybdenum. Super duplex, meanwhile, contains 25% chromium, 7% nickel and 4% molybdenum. The higher levels of these elements is what gives super duplex its enhanced resistance to corrosion against duplex stainless steel.

Super duplex steel, largely due to its higher nickel content, is more expensive than duplex stainless steel. Super duplex, however, can withstand corrosive environments such as those found in marine or petrochemical industries for a longer time than duplex and is higher in strength.

Applications of Super Duplex

Super duplex is particularly suited for the following applications:

Heat exchangers, tubes and pipes for processing gas and oil

Pipes in processes containing chlorides

Cargo tanks – piping for chemical tankers

Shafts, rotors and hydraulic lines

The high strength and low corrosion of super duplex means it is widely used in the following industries


Water desalinisation

Chemical processing

Marine and shipping

Oil and Gas production


Super Duplex Equivalent Names:

 25Cr Duplex | 2507 | UNS S32750 (F53) | IMS S32760 (F55) | 1.4410 | Alloy 2507 | SAF 2507 | Super Duplex S32760 | Super Duplex S32760 | X2CrNiMoN25.7.4 | Stainless Steel Super Duplex | 2750 | Duplex 2507 | 1.4501 | Zeron 100 |Super Duplex 2507 | Duplex 2507


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Find UsHimanshu Kanungo (Partner) Alloyed Sustainables LLP
PLOT NO-11, OFFICE NO- 26, 2ND FLOOR, SONAWALA BLDG, 7TH KHETWADI LANE, Maharashtra, 400004, Mumbai - 400004, Maharashtra, India
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