Duplex Steel UNS S32205 Flanges Manufacturer
Midland Alloys Inc. is a reputable Indian manufacturer and international supplier of UNS S32205 Duplex Steel Flanges. We manufacture high performance pipe flanges. UNS S32205 also referred to as Duplex 2205 that provides exceptional corrosion resistance and mechanical strength, particularly in environments with a high chloride content. Due to their dual phase microstructure, which combines the advantages of ferritic and austenitic stainless steels these flanges are highly favored in critical industries. High durability and toughness are provided by duplex stainless steel UNS S32205 pipe flanges, which also resist stress corrosion, cracking and pitting. With its balanced chemical composition (4.5–6.5% Ni, 2.5–3.5% Mo, 0.8–0.20% N, and 21–23% Cr) and mechanical stability, these ASTM A182 F51 UNS S32205 Flanges are a dependable option for demanding applications in challenging environments.
Benefits of ASTM A182 F51 UNS S32205 Flanges
Flanges made of Duplex Steel UNS S32205 are renowned for their exceptional performance in settings that demand both strength and resistance to corrosion. These flanges provide long-lasting and reasonably priced pipe joining solutions in accordance with ASME SA182, ANSI B16.5, and EN 1092 standards.
- Excellent resistance to chloride-induced corrosion and cracking
- Higher tensile and yield strength than austenitic stainless steels
- Outstanding performance in acidic and marine environments
- Good weldability using standard welding techniques
- Maintains mechanical properties across wide temperature ranges
- Suitable for weight-sensitive applications due to reduced wall thickness
- Economical alternative to high-nickel alloys
- Readily available with DIN 1.4462 flange dimensions
Duplex Steel UNS S32205 Flanges Specification
The key specifications such as standard, pressure class, type, face type, and finish are given below. It helps you confirm if the flanges match your technical needs before purchase.
1/2" (15 NB) to 48" (1200NB)
ASTM A182 / A240 & ASME SA182 / SA240
ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.
Threaded / Screwed / Forged / Plate
150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.
Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Forging, Rolling, Casting
FNPT, NPT, BSPT, MNPT, BSPP
Contact us today to discuss how Duplex Steel UNS S32205 Flanges can benefit your application. Whether you need guidance in selecting the right pipes or have specific requirements, our team of experts is here to help you find the optimal solution.
Technical Details & Delivery Condition
| STANDARD | WERKSTOFF NR. | UNS |
| Duplex 2205 | 1.4462 | S32205 |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| 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 |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| S32205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
Duplex Steel UNS S31803 Flanges Grades We Offer
Difference Between Duplex SS UNS S32205 Flanges and Super Duplex Steel UNS S32760 Flanges
Duplex ss UNS S32205 pipe flanges contain balanced amounts of chromium, nickel, and molybdenum, making them ideal for general industrial use with moderate chloride exposure. In contrast, Super Duplex Steel UNS S32760 flanges contain higher alloy content—especially molybdenum and nitrogen—delivering enhanced corrosion resistance and mechanical strength in highly aggressive environments. While S32205 duplex flanges serve reliably in coastal or mildly acidic conditions, S32760 is more suitable for deep-sea, petrochemical, and subsea pipeline systems requiring greater pitting resistance and fatigue performance.
Plate
Shear
Press
Inspection
Lathe
Drilling
Cleaning
Flange
Inspection
Analytic
Marking
Packing & Shipping
Applications of Duplex Stainless Steel 2205 Flanges
Duplex stainless steel 2205 flanges are a popular option in many industries due to their strong construction and chemical resistance. They are widely utilized in wellhead systems, subsea pipelines, and offshore platform in the oil and gas industry. The chemical processing industry utilises them for handling corrosive substances and storage tanks. In marine engineering, UNS S32205 Duplex lapped joint flanges are used in shipbuilding and offshore rigs due to their resistance to saltwater corrosion. These flanges also play a vital role in desalination plants and power generation facilities, where they ensure the safe and durable connection of pipes, valves, and pressure systems.
Why Choose Midland Alloys Inc. for Duplex Steel UNS S32205 Flanges
Midland Alloys Inc. is a leading manufacturer and exporter of high-quality Duplex Steel UNS S32205 Flanges in India. Under ISO 9001:2015 certified processes, we concentrate on precision manufacturing in accordance with ASTM A182, EN 1092, and ASME SA182 standards. Our flanges are available in customised sizes, s32205 flange dimensions, surface finishes, and schedules to suit diverse project needs. As a duplex S32205 flanges manufacturer in India, we serve clients across the Gulf, Europe, Southeast Asia, and Africa. Every flange undergoes stringent in-house testing, with Mill Test Certificates (MTC), third-party inspections, and 100% traceability. We also provide project-specific packaging and swift logistics, ensuring timely global delivery—whether in small batches or bulk orders. All products are marked in accordance with ASTM/ASME codes and supplied with MTCs confirming ASTM A479 Duplex Steel S32205 dimensions, chemical, and mechanical compliance.
FAQs – Duplex Steel UNS S32205 Flanges
Size, type, and surface finish can all affect the price per kilogram of S32205 flange which normally ranges from ₹450 to ₹700. Contact us to know more about our flange price list for bulk pricing.
Yes, we manufacture and supply en 1092 duplex S32205 flanges and ANSI B16.5 S32205 flanges, covering all pressure classes and face types.
Yes, duplex stainless steel 2205 flanges work well in moderately cryogenic environments because of their high strength and toughness.
We offer flanges with machined, pickled, passivated, and mirror-polished surfaces as per project requirements.
Yes, we offer cut-to-length options, special end preparations, and custom machining for UNS S32205 Duplex lapped joint flanges based on client specifications.
We provide full in-house testing, third-party inspection, ultrasonic testing, and hydro testing as per customer or project specifications.
