SUPER DUPLEX UNS S32750

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  • address 13/21, Office No. 124, Seth Virchand Umarsey Building, 1st Floor, Panjarapole 3rd Lane, Mumbai
  • phone+91-7678041137 (24/7 Support Line)
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  • emailtaashvispecialalloys@gmil.com

SUPER DUPLEX UNS S32750 by Taashvi Special Alloys

Super Duplex 2507

  • UNS S32750, F53
  • ASTM A 240, A790, A815, A182, A 276, A 476, A789
  • EN 1.4410

Other common names SAF 2507®

Forms of Super Duplex 2507 Available at Mega Mex

  • Sheet
  • Plate
  • Bar
  • Pipe & Tube (welded & seamless)
  • Fittings
    • Elbows, tees, stub-ends, returns, caps, crosses, reducers, pipe nipples, etc.
  • Weld Wire AWS ER2594, E2594-16, E2553T-1

Duplex 2507 Overview

Duplex 2507 is a super duplex stainless steel designed for applications which demand exceptional strength and corrosion resistance. Alloy 2507 has 25% chromium, 4% molybdenum, and 7% nickel. This high molybdenum, chromium and nitrogen content results in excellent resistance to chloride pitting and crevice corrosion attack and the duplex structure provides 2507 with exceptional resistance to chloride stress corrosion cracking.

Usage of Duplex 2507 should be limited to applications below 600° F (316° C). Extended elevated temperature exposure can reduce both the toughness and corrosion resistance of alloy 2507.

Duplex 2507 possesses excellent mechanical properties. Often a light gauge of 2507 material can be used to achieve the same design strength of a thicker nickel alloy. The resulting savings in weight can dramatically reduce the overall cost of fabrication.

Corrosion Resistance

2507 Duplex is highly resistant to uniform corrosion by organic acids such as formic and acetic acid. It is alsohighly resistant to inorganic acids, especially if they contain chlorides.  Alloy 2507 is highly resistant to carbide-related intergranular corrosion.  Due to the ferritic portion of the duplex structure of the alloy it is very resistant to stress corrosion cracking in warm chloride containing environments. Through additions of chromium, molybdenum and nitrogen localized corrosion such as pitting and crevice attack are improved. Alloy 2507 has excellent localized pitting resistance.

What are the characteristics of Duplex 2507?

  • High resistance to chloride stress corrosion cracking
  • High Strength
  • Superior resistance to chloride pitting and crevice corrosion
  • Good general corrosion resistance
  • Suggested for applications up to 600° F
  • Low rate of thermal expansion
  • Combination of properties given by austenitic and ferritic structure
  • Good weldability and workability

Chemical Composition, %

Cr Ni Mo C N Mn Si Cu P S Fe
24.0-26.0
6.0-8.0
3.0-5.0
0.030 Max
.24-.32
1.20 Max
0.80 Max
0.50 Max
0.035 Max
0.020 Max
Balance

In what applications is Duplex 2507 used?

  • Desalination Equipment
  • Chemical process pressure vessels, piping and heat exchangers
  • Marine Applications
  • Flue Gas Scrubbing Equipment
  • Pulp & Paper Mill Equipment
  • Offshore Oil production/technology
  • Oil and gas industry equipment

ASTM Specifications

Pipe Smls Pipe Welded Tube Smls Tube Welded Sheet/Plate Bar Flanges & Fittings
A790
A790
A789
A789
A240
A276
A182

Mechanical Properties

Specified Tensile Properties, Plate ASTM A240

Ultimate Tensile Strength, ksi Minimum .2% Yield Strength, ksi Minimum % Elongation Min. Hardness (HRB) Max.
116
80
15
310

Coil / Sheet /Plate Specification

Dimensions : ASTM, ASME, AISI, DIN, BIS

Thickness : 0.50mm - 100mm

Size : 1000 mm x 2000mm, 1220mm x 2440mm, 4' x 8', 1250mm x 2500mm, 1500mm x 3000mm to 6000mm, 2000mm x 4000mm to 6000mm

Finish : Hot rolled plate (HR), Cold rolled sheet (CR), 2B, 2D, BA NO(8), SATIN (Met with Plastic Coated)

Form : Shim Sheet, Perforated Sheet, Profile Cut,


Seamless & Welded Pipes & Tubes Specification

Specification : ASTM, ASME, DIN, NFA, JIS.

Thickness : 4.0mm - 100mm.

Pipe Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.

Tube Size : 1/2" OD to 8" OD.

Length : Cut length, Fix length, Single Random, Double Random & Required Length.

Form : Round Pipes/Tubes, Square Pipes/Tubes, Rectangular Pipe/Tubes, Coiled Tubes, “U” Shape, Pancake Coils, Hydraulic Tubes.

End : Plain End, Beveled End, Threaded End.

Type : Seamless & Welded Pipes & Tubes.


Round Bar Specification

Dimensions : ASTM, ASME,AISI, API.

Size : 5 mm to 500 mm

Length : from 2.00mm to 6.35mm (0.078" to 0.25") dia.

Finish : Bright, Black, Polish, Forged

Form : Round Bar, Square, Hexagon

Condition : Cold Drawn & Polished Cold Drawn, Centerless Ground Bars & Polished

Other Services : Machining (CNC), Centerless Grinding (CG), Heat Treatment, Annealing, Pickling, Polish, Rolling, Forging, Cutting, Bending, Minor Fabrication


Seamless & Welded Pipes & Tubes Fittings Specification

Specification : ASTM, ASME, DIN, NFA, JIS.

Size : 1/8” NB to 24” NB, 1/4” OD to 24” OD sizes.

Form : Elbow, Tee, Reducer, Stub End, End Cap, Pipe Nipple, Weldolet,

End : Beveled End, Threaded. Plain End,

Type : Seamless & Welded Pipe & Tubes Fittings, Buttweld Fittings & Dairy Fittings.

NILO-42
NILO-48
ALLOY-59
alloy-926-1

Quick Contact

If you have any questions simply use the following contact details.

  • Address:

    13/21, Office No. 124, Seth Virchand Umarsey Building, 1st Floor, Panjarapole 3rd Lane, Mumbai

  • Email:

    taashvispecialalloys@gmail.com

  • PHONE

    +91-7678041137

    +91-898066460