Duplex 2507 (UNS S32750) is a super duplex stainless steel with 25% chromium, 4% molybdenum, and 7% nickel designed for demanding applications which require exceptional strength and corrosion resistance, such as chemical process, petrochemical, and seawater equipment. The steel has excellent resistance to chloride stress corrosion cracking, high thermal conductivity, and a low coefficient of thermal expansion. The high chromium, molybdenum, and nitrogen levels provide excellent resistance to pitting, crevice, and general corrosion.
  2507 should be hot worked between 1875°F and 2250°F. This should be followed by a solution anneal at 1925°F minimum and a rapid air or water quench.
 
 Most of the common stainless steel forming methods can be used for cold working 2507. The alloy has a higher yield strength and lower ductility than the austenitic steels so fabricators may find that higher forming forces, increased radius of bending, and increased allowance for springback are necessary. Deep drawing, stretch forming, and similar processes are more difficult to perform on 2507 than on an austenitic stainless steel. When forming requires more than 10% cold deformation, a solution anneal and quench are recommended.
 
  2507 should be solution annealed and quenched after either hot or cold forming. Solution annealing should be done at a minimum of 1925°F. Annealing should be followed immediately by a rapid air or water quench. To obtain maximum corrosion resistance, heat treated products should be pickled and rinsed.
 
  2507 possesses good weldability and can be joined to itself or other materials by shielded metal arc welding (SMAW), gas tungsten arc welding (GTAW), plasma arc welding (PAW), flux cored wire (FCW), or submerged arc welding (SAW). 2507/P100 filler metal is suggested when welding 2507 because it will produce the appropriate duplex weld structure.
  Preheating of 2507 is not necessary except to prevent condensation on cold metal. The interpass weld temperature should not exceed 300°F or the weld integrity can be adversely affected. The root should be shielded with argon or 90% N2/10% H2 purging gas for maximum corrosion resistance. The latter provides better corrosion resistance.
  
  
  Description: Valve related cnc products and vmc    components 
    Material:  Stainless steel 202, 304/304L, 316/316L, 304H,    316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205    and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy    600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1,    Grade 2, Grade 5 and all other grades in Copper alloys. 
    Size: As per Diagram and requirement  
    Finish: As per requirement  
    Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding.  | 
  
   Description: Spool    CNC components  
    Material: Stainless steel  202, 304/304L, 316/316L, 304H, 316H, 309/S,    310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507.    Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy    625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2,    Grade 5 and all other grades in Copper alloys. 
    Size: As per Diagram and requirement  
    Finish: As per requirement  
    Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. | 
  Description: Medical    Implants, Bone screw, pedicle screws, pins, plates and other implants
    Material:  Stainless steel 202, 304/304L, 316/316L, 304H, 316H, 309/S,    310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205 and 2507.    Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy 600, Alloy    625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1, Grade 2,    Grade 5 and all other grades in Copper alloys. 
      Size:  As per client’s requirements  
      Finish:  As per clients requirements  
      Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. | 
  
  Description: Plugs and Exotic Fasteners with    unique designs and sizes 
    Material: Stainless steel 202, 304/304L, 316/316L, 304H,    316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205    and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy    600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1,    Grade 2, Grade 5 and all other grades in Copper alloys. 
    Size: As per client’s requirements 
    Finish: As per clients requirements and all types of coating    available 
    Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. | 
  Description: Shaft and pins  
    Material: Stainless steel 202, 304/304L, 316/316L, 304H,    316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205    and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy    600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1,    Grade 2, Grade 5 and all other grades in Copper alloys. 
    Size: As per client’s requirements  
    Finish: As per clients requirements  
    Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. | 
 
   Description:  Precision    CNC and VMC sheet metal components, Top Rollers, Spray nozzles,    Instrumentation fittings  as per    drawings 
    Material: Stainless steel 202, 304/304L, 316/316L, 304H,    316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205    and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy    600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1,    Grade 2, Grade 5 and all other grades in Copper alloys. 
    Size: As per client’s requirements 
    Finish: As per clients requirements 
    Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. | 
   Description: Aerospace    parts such as adapters, flanges, knobs, couplings, fittings, ferrules,    brackets, clamps, connectors, hoses, Elbows, Tees, shafts, Nipples, Hex plugs    etc 
    Material: Stainless steel 202, 304/304L, 316/316L, 304H,    316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205    and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy    600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1,    Grade 2, Grade 5 and all other grades in Copper alloys. 
    Size: As per client’s drawings and requirements 
    Finish: As per clients drawings and requirements 
    Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. | 
 
   Description: Industrial Precision CNC and VMC    components for motorsports, automotives, bicycle components, energy and    power, oil and gas equipments etc. 
      Material: Stainless steel 202, 304/304L, 316/316L, 304H,    316H, 309/S, 310/S, 317/L, 321/H, 347/H, 904L, 330, 254SMO, 410, Duplex 2205    and 2507. Nickel Alloy such as alloy 200/201, C276, C22, Alloy 400, Alloy    600, Alloy 625, Alloy 800H, Alloy 800HT, 254SMO, AL6XN and Titanium Grade 1,    Grade 2, Grade 5 and all other grades in Copper alloys. 
      Size: As per client’s drawings and requirements 
      Finish: As per clients drawings and requirements  
      Process: CNC swiss, CNC turning, VMC machining, Milling and    Grinding. |