Breadcrubs

We are Distributors and Suppliers of 2507 super duplex stainless steel.

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2507 bar .

Super Duplex 2507® Stainless Steel Bar

UNS S32750

UNS S32750, commonly known as Super Duplex 2507®, is very similar to UNS S31803 Duplex. The difference between the two is the contents of chromium and nitrogen are higher in the Super Duplex Grade which in turn creates higher corrosion resistance as well as a longer lifespan. Super Duplex is composed of between 24% to 26% chromium, 6% to 8% nickel, 3% molybdenum, and 1.2% manganese, with the balance being iron. Also found in Super Duplex are trace amounts of carbon, phosphorus, sulfur, silicon, nitrogen, and copper. Benefits include: good weldability and workability, a high level of thermal conductivity and low coefficient of thermal expansion, high resistance to corrosion, fatigue, high resistance to pitting and crevice corrosion, high resistance to stress corrosion cracking (especially chloride stress corrosion cracking), high energy absorption, high strength, and erosion. Essentially, the Duplex alloys are a compromise; possessing some of the ferritic stress corrosion cracking resistance and much of the superior formability of the common austenitic stainless alloys, more cost effectively than the high nickel alloys.

Industries that use Super Duplex include:

  • Chemical
  • Marine
  • Oil and Gas production
  • Petrochemical
  • Power
  • Pulp and Paper
  • Water desalinization

Products partially or completely constructed of Super Duplex include:

  • Cargo tanks
  • Fans
  • Fittings
  • Heat exchangers
  • Hot water tanks
  • Hydraulic piping
  • Lifting and pulley equipment
  • Propellers
  • Rotors
  • Shafts
  • Spiral wound gaskets
  • Storage vessels
  • Water heaters
  • Wire
STOCKING DIAMETERS 1/2” TO 12”
MATERIAL LENGTHS UP TO 12’

 

BAR SPECIFICATIONS
UNS TYPE AMS ASTM FEDERAL CHARACTERISTICS
S32750 SUPER DUPLEX A-479 Higher chromium and nitrogen content in Super Duplex makes it superior in corrosion resistance and enables a longer lifespan than Duplex.

 

CHEMISTRY ANALYSIS
C MN P S SI CR NI MO CU OTHER M/NM
.03 1.2 .035 .02 .08 24. – 26. 6. – 8. 3. – 5. .5 N .24 – .32 INQUIRE

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