Super Duplex Steel Flanges

Super Duplex stainless steel flanges are renowned for their low thermal expansion, high thermal conductivity, and exceptional resistance to corrosion cracking and chloride stress.  Grades such as ASTM A182 Duplex UNS S32750 / S32760 Flanges work well in brackish waters, saline environments, bleaching processes, and even food processing.  These flanges are manufactured by Metracore Alloys under strict quality standards, ensuring their strength, longevity, and resilience to challenging operating environments.

Super Duplex Steel Flanges, Super Duplex Stainless Steel Flanges, Super Duplex Flanges

These super duplex steel flanges come with strong mechanical properties and reliable specifications. Standards include ASTM A182 / ASME SA182 with grades UNS S32750, S32760, S32950, F51, F53, and F55. Sizes range from 1/8″NB to 48″NB. They show exceptional resistance to chlorides, including stress corrosion cracking (SCC). The higher chromium, molybdenum, and nitrogen levels give a PREN above 40, making them highly resistant to pitting and crevice corrosion. They also show strong resistance to sulfuric acid. Mechanically, they offer higher yield and tensile strength than standard duplex steels while keeping good ductility and formability. They also have excellent fatigue resistance, good weldability, and can absorb high energy during operation.

Super duplex flanges are frequently used in sectors where resistance to corrosion is crucial.  Due to their enhanced resistance to pitting and crevice corrosion, Duplex Steel S32205 Flanges are frequently used in chemical processing facilities, desalination plants, and seawater systems.  Additionally, they are employed in the food processing, municipal waterworks, pulp and paper, oil and gas, nuclear power plants, and fossil fuel power plants.  Heat exchangers, fluid piping, textile equipment, and pharmaceutical processing are some additional uses.  Raw super duplex steel is forged or rolled, then machined, heated, solution-annealed and quenched to create these flanges. Each flange is tested with dimensional checks and non-destructive methods to ensure quality.

Super Duplex Steel Flanges Supplier, Super Duplex Flanges Manufacturer In India, Super Duplex Steel Flange Manufacturers

All of our super duplex stainless steel flanges are certified to ASTM, ASME, and EN standards. They comply with dimensional norms such as ASME B16.5 and EN1092. Each product is supplied with mill test certificates (MTCs) confirming chemical composition, mechanical properties, and pressure ratings. To safeguard the flanges during handling and transportation, packaging options include palletised crates, bubble wrap, seaworthy cases and wooden boxes.  As a renowned super duplex flanges manufacturer in India, we ensure that each flange satisfies international performance and dependability standards.

Super Duplex Steel Flanges Specification

Standard

Standard

ASTM A182 / ASME SA 182

Dimensions

Dimensions

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

Size

Sizes in Stock

1/2″NB TO 60″NB

Process

Flanges Process

Forging, Rolling, Casting

Types

Types of Flanges

Threaded / Screwed / Forged / Plate

Class / Process

Class / Pressure

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

Face Type

Flange Face Type

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Flange Thread

Flange Thread

FNPT, NPT, BSPT, MNPT, BSPP

Types of Super Duplex Steel Flanges

Nickel Alloy Slip On Flanges

Super Duplex Steel Slip On Flanges

Socket Weld Flanges

Super Duplex Steel Socket Weld Flanges

Blind Flanges

Super Duplex Steel Blind Flanges

Weld Neck Flanges

Super Duplex Steel Weld Neck Flanges

Threaded / Screwed Flanges

Super Duplex Steel Threaded / Screwed Flanges

Lap Joint Flanges

Super Duplex Steel Lap Joint Flanges

Long Weld Neck Flange

Super Duplex Steel Long Weld Neck Flanges

Spectacle Blind Flanges

Super Duplex Steel Spectacle Blind Flanges

Reducing Flanges

Super Duplex Steel Reducing Flanges

Super Duplex Steel Flanges Face Forms

Raised Face

Raised Face (RF)

Ring Type Joint

Ring Type Joint (RTJ)

Flat Face

Flat Face (FF)

Lap-Joint Face

Lap-Joint Face (LJF)

Reach out to Metracore Alloys for reliable Super Duplex Steel Flanges solutions

Technical Details of Super Duplex Steel Flanges

Super Duplex Flange Pressure Rating

Temperature In °F Working Pressure in Class 75 to 2500 In PSI
CL 75 CL 150 CL 300 CL 400 CL 600 CL 900 CL 1500 CL 2500
-20~100 145 290 750 1000 1500 2250 3750 6250
200 130 260 745 990 1490 2230 3720 6200
400 100 200 615 820 1230 1845 3070 5120
600 70 140 555 740 1115 1670 2785 4640
700 110 540 725 1085 1625 2710 4520
GradeA182 F53A182 F55
Tensile Strength, Min. (KSI)116109
GradeA182 F53A182 F55
Hardness, (Maximum) Brinell310300

Manufacturing Process of Super Duplex Steel Flanges

Flanges Manufacturing Process

Super Duplex Steel Flanges Application

Exporter, Manufacturer & Supplier of Super Duplex Steel Flanges in various material and sizes.

Scroll to Top