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Stainless Steel, Nickel Alloys, Alloy 20, Duplex 2205® and Super Duplex 2507®.

Pipe, Tubing, Fittings, Flanges, Bar, Plate and
Continuous Coil Tubing
 
We now offer Metric Tubing in Stainless Steel
 
We offer Tube Fittings by Hoke-Gyrolok®, Parker® and Swagelok®.

 

 

 
 
 
 
   
 
 
 
 
 
 
 
Super Duplex 2507® Stainless Steel

UNS S32750

Super Duplex 2507®, is very similar to UNS S31803 2205® Duplex. The difference between the two is the contents of chromium and nitrogen are higher in the 2507® which in turn creates higher corrosion resistance as well as a longer lifespan. 2507® is composed of between 24% to 26% chromium, 6% to 8% nickel, 3% molybdenum, and 1.2% manganese, with the balance being iron. Trace amounts of carbon, phosphorus, sulfur, silicon, nitrogen, and copper are also found. Benefits include good weldability and workability, a high level of thermal conductivity and low coefficient of thermal expansion, resistance to corrosion, fatigue, pitting and crevice corrosion, high resistance to stress corrosion cracking especially in chloride atmospheres, high energy absorption. 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 steel alloys yet more cost effective than the high nickel alloys.

Available from Inventory

Pipe – Seamless and Welded

Tubing – Seamless and Welded

Fittings – Butt Weld, Socket Weld

Flanges

½” Thru 12”

Schedules 10s, 40s, 80s and 160

Pressure Fittings - Threaded

1/4” Thru 2”

150#, 300#, 3000# and 6000#

Bar- Round, Flat and Hex

Plate and Sheet

Specifications

Pipe – ASTM/ASME A/SA 790 Seamless/Welded Tubing A789

Butt-Weld Fittings – ASTM/ASME A/SA 815 Sheet/Plate A240

Flanges – ASTM/ASME A/SA 182 Bar A276

Pressure Fittings - A/SA 182, A/SA 479

Chemical Composition %

C

Cr

Mn

Mo

Ni

P

S

Si

Max


Max



Max

Max

Max

0.030

24.0-26.0

1.2

3.0-5.0

6.0-8.0

0.035

0.020

0.80

All information above is not guaranteed and is not for design purposes.