Duplex Steel Flanges
Table of Content
- What are Duplex Steel S31803 Flanges?
- What is Duplex Steel S32205 Flange Used For?
- What are the Advantages of Duplex Steel 2205 Flanges?
- Types of Duplex Steel Flanges
- Specifications Duplex Steel Flanges
- Chemical Composition Duplex Steel Flanges
- Duplex Steel Flanges Mechanical Properties
- We Export To Duplex Steel Flanges
- FAQ
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 trusted supplier of Duplex Stainless Steel Flanges, known for their exceptional weather resistance and robust mechanical strength. These flanges are available in various sizes and dimensions, tailored to meet specific customer requirements. They are especially suitable for extreme environments and volatile areas where welding poses safety risks. At our in-house facility, we specialize in producing Duplex S31803 and Duplex S32205 Flanges, using high-quality materials and adhering to strict quality control standards. Each product undergoes rigorous testing to ensure performance and reliability.
Our Duplex Steel UNS S31803 Blind Flanges provide effective, leak-proof sealing for pipe ends, with excellent resistance to general corrosion. We also manufacture ASME SA182 Duplex Steel UNS S32205 Weld Neck Flanges, ideal for use in seawater environments and power generation equipment. These flanges are designed to maintain optimal flow characteristics and perform efficiently at temperatures up to 600°F.
Additionally, our range includes Duplex Steel DIN 1.4410 Socket Weld Flanges, engineered to handle gas under pressures up to 600 psi. These flanges are carefully packaged and shipped globally, ensuring timely delivery. We offer a comprehensive selection, including Duplex 2205 Slip On Flanges, Duplex S31803 Weld Neck Flanges, F51 Socket Weld Flanges, F52 Blind Flanges, F56 Orifice Flanges, S32205 Spectacle Blind Flanges, F60 Threaded Flanges, F61 Reducing Flanges, and 2205 Ring Type Joint Flanges (RTJ), among others.
These ASME SA182 Duplex Steel Flanges are widely used in industries such as Chemical, Oil & Gas, Fertilizer, and Engineering. Their excellent stress corrosion cracking (SCC) resistance makes them highly reliable in challenging environments. Containing elements like chromium, molybdenum, and nitrogen, Duplex Stainless Steel Flanges offer outstanding protection against chloride pitting and crevice corrosion. With lower nickel and molybdenum content compared to austenitic stainless steels, they deliver similar corrosion resistance at a more cost-effective price, making them an economical and durable choice.
Types of Duplex Steel Flanges
Duplex Stainless Steel Flanges Specifications
| Standard | ASTM A182 / ASME SA182 |
| Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
| Flange Size Chart | 1/2″ (15 NB) to 48″ (1200NB), DN10~DN5000 |
| Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
| Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
| JIS | 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K |
| Flange Connection / Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe. |
| Origin | West Europe / Japan / Indian / USA / Korean |
| Types of Flanges | Threaded / Screwed / Forged / Plate |
| Coating | Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized |
| Production technique Used | Heat treated, Forged and Machined |
| Equipment | Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc. |
| Test Certificates | EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc |
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 |
Mechanical Properties of Duplex Steel Plate Flanges
| 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 |
Applications of Duplex Steel Flanges
Duplex Steel Flanges are widely used across various industries due to their strength, corrosion resistance, and durability. Key applications include:
- Petrochemical Industries: Essential for pipelines and systems handling corrosive chemicals.
- Cement Industries: Used in high-pressure and high-temperature environments.
- Chemical Industries: Ideal for handling aggressive chemicals and corrosive substances.
- Oil & Gas Industries: Reliable for offshore and onshore drilling and transport systems.
- Power Plants: Suitable for systems exposed to high stress and extreme conditions.
- Shipbuilding Industries: Used in marine environments for their excellent resistance to seawater corrosion.
- Fertilizer Industries: Effective in handling harsh chemicals in production processes.
- Sugar Industries: Applied in equipment exposed to moisture and chemical cleaning.
- Engineering Projects: Used in custom systems requiring strength and long-lasting performance.
Duplex Steel Flanges deliver dependable performance across these industries, making them a preferred choice for challenging applications.
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 corrosion-resistant components made from duplex stainless steel, known for their high yield strength, making them ideal for demanding applications in industrial settings.
What is a duplex stainless steel flange?
Duplex stainless steel flanges combine austenitic and ferritic stainless steels, providing excellent resistance to stress corrosion cracking. Grades such as 2205, F51, and F53 offer superior strength and durability.