Duplex Steel Flanges

Duplex Steel Pipe Flanges, Duplex Steel Industrial Flanges, Duplex Steel Threaded Flanges, Duplex Steel Flat Flange, Duplex Steel Forged Flange, Duplex Steel Weld Neck Flange Suppliers and Manufacturers in Europe.

Duplex Steel Slip-on Flanges, Duplex Steel Socket Weld Flange, Manufacturer of Duplex Lapped joint Flanges, Duplex Steel Orifice Flanges, Duplex Stainless Steel Flanges, Duplex Steel Forged Flange Supplier in the UK.

Kalpataru Piping Solutions is a premier manufacturer, supplier, and exporter of Duplex S31803/S32205 Flanges. From our state-of-the-art production center, we produce flanges using high-quality materials and advanced techniques.

Our Duplex Steel UNS S31803 Flanges undergo a rigorous quality control process to ensure they meet top industry standards. We carefully test our Duplex Steel UNS S31803 Blind Flanges to guarantee they serve as effective water-proof seals for pipe ends and resist general corrosion.

We are also proud suppliers of ASME SA182 Duplex Steel UNS S32205 Weld Neck Flanges. These flanges are perfect for applications in seawater and power generation, thanks to their smooth surfaces that can handle temperatures up to 600°F and support excellent flow characteristics.

Kalpataru Piping Solutions offers a range of high-quality Duplex S31803/S32205 Flanges for diverse industrial needs, including chemical processing, water systems, and more.

What are Duplex Steel S31803 Flanges?

Duplex Steel S31803 Flanges are high-quality flange fittings made from Duplex Stainless Steel Grade S31803. This grade combines ferritic and austenitic stainless steels, giving these flanges outstanding corrosion resistance and high strength. S31803 Flanges are widely used in industries like oil and gas, chemical processing, and offshore installations, where they provide excellent durability and performance under harsh conditions.

What is Duplex Steel S32205 Flange Used For?

Duplex Steel S32205 Flange is a specialized flange designed for high-corrosion-resistance applications. Made from Duplex Stainless Steel Grade S32205, these flanges are ideal for environments with high chloride exposure, such as seawater applications, desalination plants, and chemical processing facilities. The S32205 Flange offers superior protection against pitting and crevice corrosion, making it a reliable choice for demanding environments.

What are the Advantages of Duplex Steel 2205 Flanges?

Duplex Steel 2205 Flanges offer several notable advantages due to their unique properties

  • Superior Corrosion Resistance: Excellent resistance to chloride-induced corrosion, ideal for harsh environments.
  • High Strength: Duplex Steel 2205 Flanges are about twice as strong as standard austenitic steels, making them suitable for high-pressure applications.
  • Excellent Toughness: These flanges maintain good toughness and can withstand extreme temperatures and pressures.
  • Good Weldability & Formability: Easy to work with during installation, allowing for efficient and effective fabrication.
  • Cost-Effective: Lower nickel and molybdenum content reduces costs compared to other high-alloy stainless steels.

These properties make Duplex Steel 2205 Flanges a great choice for demanding applications, offering reliable and long-lasting performance.

Types of Duplex Steel Flanges

Duplex Steel UNS S31803 Flanges
Duplex Steel UNS S31803 Flanges
Duplex Steel UNS S32205 Flanges
Duplex Steel UNS S32205 Flanges

Specifications Duplex Steel Flanges

Specifications : ASTM A182 / ASME SA182

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

Size : 1/8″ NB TO 24″ NB

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

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

Grades : S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61

Chemical Composition Duplex Steel Flanges

Grade C Mn Si P S Cr Mo Ni N Fe
S31803 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 22.0 – 23.0 3.0 – 3.5 4.50 – 6.50 0.14 – 0.20 63.72 min
S32205 0.030 max 2.00 max 1.00 max 0.030 max 0.020 max 21.0 – 23.0 2.50 – 3.50 4.50 – 6.50 0.8 – 0.20 63.54 min

Duplex Steel Flanges Mechanical Properties

Grades Density (g/cm 3) Density (lb/in 3) Melting Point (°C) Melting Point (°F)
S31803 / S32205 7.805 0.285 1420 – 1465 2588 – 2669

We Export To Duplex Steel Flanges

New Zealand, Ukraine, Brazil, Azerbaijan, Angola, United Kingdom, Philippines, Oman, France, Algeria, Macau, Sri Lanka, Tibet, Norway, Mexico, Venezuela, Denmark, Russia, Bhutan, Estonia, Austria, Vietnam, Argentina, Turkey, Greece, Romania, Bahrain, Bangladesh, Afghanistan, Italy, Poland, Zimbabwe, Thailand, India, Kenya, Ecuador, Puerto Rico, Nepal, Malaysia, Bulgaria, Libya, Slovakia, Chile, Serbia, Australia, Poland, Iran, Costa Rica, Peru, South Korea, Iraq, Iran, Indonesia, Spain, Trinidad & Tobago,Tunisia, Qatar, Japan, Canada, Taiwan, Yemen, Mongolia, Czech Republic, Israel, Ghana, Egypt, Nigeria, Saudi Arabia, United Arab Emirates, Namibia, Hungary, South Africa, Hong Kong, Croatia, Colombia, Lebanon, Nigeria, Portugal, Finland, Pakistan, Jordan, Sweden, Belgium, Gambia, Lithuania, United States, Chile, Bolivia, Germany, Singapore, Ireland, Gabon, Kuwait, Switzerland, Mexico, Belarus, Kazakhstan, Morocco, China, Netherlands, Germany, Belgium, Italy, Turkey, Denmark and UK.

FAQs

What is a duplex flange?

Duplex flanges are high-strength, corrosion-resistant components made from duplex stainless steel. They offer superior durability and strength compared to standard stainless steel flanges, making them ideal for demanding applications in industries like chemical processing, marine, and oil & gas.

What is a duplex stainless steel flange?

Duplex stainless steel flanges are made from a blend of austenitic and ferritic stainless steels, offering high stress corrosion cracking resistance. Grades like 2205, F51, F53, and F60 provide superior strength and corrosion resistance compared to standard 304 and 316 stainless steels.

What material is used in super duplex flanges?

Super Duplex Flanges are made from a high-performance alloy containing 25% chromium, 4% molybdenum, and 7% nickel. This composition offers exceptional strength, corrosion resistance, and durability for demanding applications in industries such as oil & gas and chemical processing.

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