Duplex Steel Flanges

Table of Content

• Duplex Steel Flanges
• What Makes Duplex Steel Special?
• Standards & Specifications for Duplex Steel Flanges
• Key Properties You Get with Duplex Pipe Flanges
• Where Duplex Steel Flanges Make a Difference (Industrial Applications)
• Choosing the Right Duplex Steel Pipes Flanges for Your Project
• Where to Find High-Quality Duplex Steel Flanges?

Introduction to Duplex Steel Flanges

At Solitaire Overseas, we supply Duplex Steel Flanges that are genuinely built to last and perform reliably, even under pressure. Crafted from that smart blend of austenitic and ferritic stainless steel, these flanges bring together high strength and exceptional corrosion resistance. They're specifically designed for the toughest environments you can think of—like offshore oil rigs, busy chemical plants, marine systems, and power facilities. It's that dual-phase structure inside the steel that gives Duplex flanges the edge, providing the strength and toughness needed to handle high-pressure, corrosive situations without breaking a sweat.

What Makes Duplex Steel Special?

So, what's the big deal with Duplex Steel? It's a type of stainless steel featuring a nearly even mix of two internal structures (austenite and ferrite phases). This combination gives it a fantastic balance of useful properties:

• High Strength: Duplex Steel boasts nearly double the yield strength of common stainless steels like 304 or 316. This often means you can design components that are lighter yet still incredibly tough.
• Superior Corrosion Resistance: It stands up exceptionally well against pitting, crevice corrosion, and stress corrosion cracking – especially valuable in salty or chloride-heavy environments.
• Excellent Weldability: Good news for fabricators – you can work with Duplex using most standard welding methods, making assembly and installation much smoother.
• Durable & Cost-Effective: Thanks to its long service life and lower maintenance needs, it often proves to be a smart investment over the long haul.

We typically offer two highly trusted Duplex grades

• UNS S31803 (often called Duplex 2205): A reliable go-to choice for many demanding industrial jobs.
• UNS S32205: Think of this as a refined version of S31803, offering even more consistent and predictable corrosion resistance due to tighter controls on its composition.

Both of these grades have certainly earned their strong reputation for dependable performance in challenging industries.

Enquire Now!

• Oil & Gas: Essential for pipelines, subsea systems, pressure vessels, and more – both onshore and offshore.
• Chemical & Petrochemical: Ideal for heat exchangers, reactors, and process piping handling aggressive chemicals.
• Marine & Shipbuilding: Perfect for ballast systems, cooling lines, and desalination units, thanks to their top-notch resistance to chlorides.
• Power Generation: Reliably used in turbines, boiler feedwater systems, and even certain nuclear applications.
• Pulp & Paper: Performs dependably in tough bleaching, chemical recovery, and digestion systems.

When you're sourcing top-quality Duplex Steel Flanges, Solitaire Overseas is the trusted name many professionals rely on. We ensure all our flanges come from certified mills and undergo rigorous testing, so you can be confident in their durability and performance. With our competitive pricing, you get that premium quality without needing to stretch your budget.

Plus, we ship worldwide, offering fast and trackable delivery to keep your project on schedule. Not quite sure which flange type or grade you need? Our helpful technical team is always here to guide you in selecting the perfect fit for your application. We also maintain a large inventory covering various sizes and configurations, meaning your order is often ready to go when you are.