Duplex Steel Ferrule Fittings

Need a dependable duplex instrumentation fitting? Duplex Steel Ferrule Fittings on MetalMitra come in imperial and metric sizes to ASTM A276, ready for leak-tight instrument and hydraulic lines.

Duplex Steel Ferrule Fittings are compression-type tube fittings that use front and back ferrules to grip the tube and create a reliable, leak-tight seal without welding.

Duplex stainless steel has a two-phase austenitic-ferritic structure that delivers higher strength than standard austenitic grades together with good resistance to pitting, crevice corrosion and chloride stress corrosion cracking.

Available forms & variants

• Male & Female Connectors — Connect tubing to threaded ports and equipment.
• Unions & Reducers — Join tubes of the same or different sizes.
• Elbows, Tees & Crosses — Change direction or branch instrumentation lines.
• Caps, Plugs & Ferrules — End closures and replacement ferrule sets.

Performance highlights

• High Strength — Roughly double the yield strength of standard 300-series grades.
• Corrosion Resistance — Strong resistance to pitting, crevice and general corrosion.
• SCC Resistance — Far better resistance to chloride stress corrosion cracking.
• Cost Efficient — Thinner walls and long life trim material and lifecycle costs.

Typical applications

• Oil & Gas
• Chemical Processing
• Petrochemical
• Desalination
• Marine Applications
• Pulp & Paper
• Heat Exchangers
• Pressure Vessels
• Water Treatment
• Offshore Platforms
• Fabrication
• General Engineering

Quality checks & certification

Every lot of Duplex Steel Ferrule Fittings sourced through MetalMitra can be inspected and documented to the governing standard and your purchase order.

• Dimensional & thread inspection
• Visual inspection
• Grade verification against the order
• Ferrule fit-up check
• Pressure / leak testing as applicable
• Positive Material Identification (PMI) as applicable
• EN 10204 3.1 Mill Test Certificate
• Project-specific documentation on request

Material properties

Chemical composition and mechanical properties are supplied to the limits of the governing material standard. Actual heat values are reported on the mill test certificate shared with each consignment.

Why buy through MetalMitra

• Verified suppliers — Mills, manufacturers and stockists are reviewed by the MetalMitra team before they list.
• One RFQ, several quotes — Share size, grade and quantity once and compare offers side by side.
• Full traceability — Heat numbers, EN 10204 3.1 MTCs and third-party inspection on request.
• Delivered worldwide — Export-worthy packing and shipping to India, the Middle East, Africa, Europe and the Americas.

Ready to buy?

Send your size, grade, quantity and delivery location for Duplex Steel Ferrule Fittings, and matching suppliers on MetalMitra will come back with offers.

Technical note: Values on this page are for reference. Always confirm against the governing standard, your purchase specification and the mill test certificate.