Duplex & Super Duplex pipes tubes

Calico Metals provides high quality duplex and super duplex pipe tubes to all its valuable customers worldwide. Compared to austenitic stainless steel, the duplex steel has improved strength as well as improved resistance to the localized corrosion, mainly crevice corrosion, pitting and stress corrosion cracking. An austenitic ferritic iron chromium-nickel alloy is super duplex with addition of molybdenum and which is known to have better cracking resistance, stress corrosion and better mechanical properties as compared to any other types of steel.


Category: .

On account of the above mentioned properties, the duplex-super-duplex-pipe-tubes find extensive use in the applications where there is requirement of good impact toughness, high intensity, high pressure work, ability to avoid crack and patch, greater corrosion resistance compared to the standard duplex grades such as:

  • Petrochemical
  • Geothermal
  • Oil & Gas
  • LNG
  • Pharmaceutical
  • Desalination of water
  • Solar power
  • Mining
  • Nuclear power
  • Biomass

RANGE :
TUBING SIZE : 1/2″ OD TO 4″ OD (IN ALL THICKNESS)
NOMINAL BORE (NB) SIZES : 1/2″NB TO 48″ NB (IN ALL THICKNESS)

QUALITY :
DUPLEX & SUPER DUPLEX STEEL
UNS S31803, S32205 (2205),S32750 (2507), S32760 (Z-100)
S32900 (329), S32304, F-51, F-53, F-54, F-55 & F-60 & HIGH NICKEL ALLOYS

TYPE :
WELDED (ERW) PIPES, FEBRICATED PIPES & SEAMLESS PIPES

END :
PLAIN END, BEVELLED END & THREADED END

SHAPES :
ROUND & SQUARE

VALUE ADDED SERVICES :

  • Annealed
  • Anodising
  • Bending
  • Casting
  • Cutting
  • Centreless Grinding (Cg)
  • Draw & Expansion
  • Drilling
  • Electroplating
  • Fabricate (With Radiography)
  • Heat Treatment (Hardening & Tempering)
  • Machining (Cnc)
  • Minor Fabrication
  • Pickled
  • Polish (Electro & Commercial)
  • Sand Blasting
  • Threading (As Per Guage)
  • Welding

TEST CERTIFICATION :
Our Materials Are Tested To Relevant Standard And Wherever Possible We Give Original / Copy Of Test Certificate With Heat Number As Well As Govt. Approved Laboratories Test Certificate Can Also Be Provided. We Supply the Material under Inspection of Any Third Party Inspection Agency as per the Client’s Requirements Such As :
1) Bv- Bureau VERITAS Industrial Services (India) Pvt. Ltd
2) Lloyds Inspection Agency
3) Rina
4) Irs – International Register Of Shipping (Irs)
5) Dnv – Det Norske Veritas
6) Tcs – Tata Consultancy Services
7) Tuv India

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