Super Duplex Steel Flanges Manufacturers in India

Super Duplex Steel Flanges Manufacturers in India

PED Approved Super Duplex Steel Flanges Manufacturers & Suppliers

PED Certified Super Duplex Steel Flanges Manufacturers & Suppliers

It possesses very high mechanical properties. Super Duplex Steel Flanges (UNS S32760) has excellent resistance to pitting and crevice corrosion resistance compared with the ordinary austenitic or duplex types. Duplex stainless steels grades are named duplex because these Duplex Steel Flanges equivalent grades have a two-phase microstructure. This two-phase microstructure consists of grains both, Ferritic as well as austenitic stainless steel classes. As the name suggests, the duplex structure gives this Duplex Stainless Steel Socket weld Flange Material a combination of attractive properties.

Toughness and ductility: ANSI B16.5 Duplex Blind Flange tends to offer significantly better toughness as well as ductility when compared to Ferritic stainless steel grades. Although Duplex Steel Flanges Suppliers in India appreciate its toughness and ductility, flanges from this grade do not reach or match the excellent values that have been offered by the austenitic stainless steel grades.
Corrosion Resistance: As usual with all stainless steel grades, the corrosion resistance of a metal or alloy depends mostly on the composition of the metal, in this case, stainless steel. For resistance against chloride pitting and crevice corrosion, the content of elements such as chromium, molybdenum, and nitrogen are considered as most important. By adding these elements, Duplex Stainless Steel Flanges Manufacturer in India increases the range of corrosion resistance in this grade of stainless steel. Therefore, Duplex Stainless Steel Pipe Flange Manufacturers recommends using this stainless steel grade in many operations as the range is similar to the range of corrosion resistance for austenitic stainless steel grades, i.e. from Type 304 or 316 to 6% molybdenum stainless steels.

Stress corrosion cracking resistance: Another reason why Duplex Steel SORF Flanges Supplier in Mumbai recommends using components made from this grade of stainless steel is that they display very good stress corrosion cracking (SCC) resistance. This is a property the ASME b16.5 Duplex Forged Flange has been inherited from the Ferritic side of the stainless steel. SCC could be a problem under certain circumstances like humidity & elevated temperature or environments containing certain chemicals such as chlorides, for standard austenitic stainless steel grades such as Types 304 and 316. Therefore, Duplex Blind Flange Suppliers often supply them to industries such as oil & gas, petrochemicals as well as marine industries. For example, Duplex Flange Manufacturers note that the flanges made from this grade of stainless steel often outperform many stainless steel grades.

Cost: Due to a lower nickel and molybdenum content in Duplex stainless steels, as compared to their austenitic counterparts, they tend to offer similar resistance to corrosion. This is why ASME SA182 Duplex Steel Socket weld Flanges exporter in India quote a lower cost. Lower alloying content, of duplex stainless steels, would mean that the cost can be lowered. This stands true, especially in times of high alloy surcharges. Further, it may often be possible to reduce the section thickness of duplex stainless steel, on account of its increased yield strength when compared to austenitic stainless steel. This combination can lead to significant cost and weight savings in the class 150 duplex pipe flange dimensions when compared to components in austenitic stainless steel grades.

Super Duplex Stainless Steel UNS S32750 Slip On Flanges is a super duplex stainless steel with a 50 / 50 austenite, ferrite microstructure. High impact strength at sub-zero temperatures, Super Duplex Stainless Steel UNS S32760 Blind Raised Flanges displays excellent corrosion resistance. Super Duplex UNS S32750 Spectacle Blind Flanges has enhanced pitting and crevice corrosion resistance in comparison with the ordinary austenitic or duplex types. Super Duplex UNS S32760 Lap Joint Flanges is a super duplex stainless steel supplied in the hot worked and solution annealed condition. The mechanical strength, corrosion resistance, and low-temperature toughness of the Super Duplex S32750 Ring Type Joint Flanges are higher than that of ordinary duplex stainless steels. Super Duplex S32750 Orifice Flanges is the most common super duplex grade that has enhanced pitting and crevice corrosion resistance compared with the ordinary austenitic or duplex types. Super Duplex 2507 Socket Weld Flanges are used for Condensers, Heat exchangers, Dished ends, Filters, and more. Alloy 2507 Weld Neck Flanges is a super duplex stainless steel with a pitting resistance equivalent (PRE) number of more than 40 and provides excellent corrosion resistance and strength properties. Super Duplex DIN 1.4410 Flanges has a higher molybdenum and chromium content which gives the material greater corrosion resistance than standard duplex grades.

ASTM A182 Super Duplex Steel UNS S32750 / S32760 Flanges Specification :

Specification : ASTM A182 / ASME SA182 F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Dimension : ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard : ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Grade : UNS No. S32750, S32760

Size : 1/8" NB TO 24" NB

Class : 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

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Duplex Steel Flanges Manufacturers in India. Stockist of Duplex Steel Forged Flange, Duplex RTJ Flanges Distributors in Dubai, UAE

 

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Duplex Flanges, ANSI B16.5 Duplex Blind Flange Flange and SORF Flange Supplier in Mumbai and ASME SA182 Duplex Steel Socket weld Flanges exporter in India

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Duplex Steel Flange thickness calculation as per ASME B31.3 Section 304.5.2

•  The minimum thickness, considering the manufacturer ’s minus tolerance, shall be not less than tm
•  To calculate t, the rules of Section VIII, Division 1, UG-34 may be used
•  The minimum required thickness of flat unstayed circular heads, covers and blind flanges attached by bolts causing an edge moment in which case the thickness shall be calculated by the following formula:

Where,

•  C = a factor depending upon the method of attachment of head, shell dimensions, and other items as listed in (d) below, dimensionless. The factors for welded covers also include a factor of 0.667which effectively increases the allowable stress for such constructions to 1.5S. (in our case C= 0.3)
•  d = diameter, or short span, measured as indicated in Fig. UG-34.
•  E = joint efficiency, from Table UW-12, of any Category A weld as defined in UW-3(a)(1).
•  hG = gasket moment arm, equal to the radial distance from the center line of the bolts to the line of the gasket reaction
•  P = internal design pressure
•  S = maximum allowable stress value in tension from applicable table of stress values referenced by UG-23.
•  W = total bolt load given for circular heads for Formulas (3) and (4), 2-5(e).

Duplex Steel Flanges suppliers, Manufacturer of Stainless Steel Duplex Threaded Flanges, ASTM A182 Duplex Steel Socket weld Flanges in India and Dubai

 

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Duplex Steel Flanges Sizes according to ASME/ASTM B16.5 – B16.36 – B16.48

•  Class 150(lb) up to 24"
•  Class 300(lb) up to 20"
•  Class 600(lb) up to 20"
•  Class 900(lb) up to 16"
•  Class 1500(lb) up to 10"
•  Class 2500(lb) up to 8"

Duplex Steel Flanges Sizes according to DIN – EN1092-1 – EN1759-1 – NFE – BS10/BS4504 – ISO7005-1

•  PN2.5/PN06/PN10 up to DN800
•  PN16/PN25/PN40 up to DN600
•  PN63/PN100 up to DN500
•  PN160/PN250 up to DN300
•  PN320/PN400 up to DN200

NPS related to nominal diameter, DN in international standards, relations as below:

Note: For NPS ≥ 4, the related DN = 25 multiplied by the NPS number. For example NPS 10 is DN250.

 

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15mm (1/2") Duplex Steel Flange Weight Chart

 

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•  Duplex Steel Flanges uses in Gas Processing
•  Duplex Steel Flanges uses in Pharmaceutical Equipment
•  Duplex Steel Flanges uses in Spiral Welded tube for burner pipes and flues
•  Duplex Steel Flanges uses in Heat Exchangers
•  Duplex Steel Flanges uses in Petrochemicals
•  Duplex Flanges uses in Power Generation
•  Duplex Steel Flanges uses in Specialty Chemicals
•  Duplex Steel Flanges uses in Pharmaceuticals
•  Duplex Steel Flanges uses in Aircraft exhaust manifolds
•  Duplex Steel Flanges uses in Sea Water Equipment
•  Duplex Steel Flanges uses in Off-Shore Oil Drilling Companies

 

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We Supply Super Duplex Steel UNS S32750 / S32760 Flanges For Various Application Industry Like :