Duplex Steel Tube Fittings

M Metal Tubes India Pvt Ltd is a leading manufacturer, supplier, and exporter of Duplex Steel UNS S31803 Tube Fittings, engineered for high performance under extreme conditions. With over 40 years of industry expertise, we offer instrumentation and compression fittings designed to withstand aggressive environments, pressure fluctuations, and corrosive media.

What is Duplex Steel UNS S31803?

UNS S31803 is a nitrogen-enhanced duplex stainless steel combining the characteristics of austenitic and ferritic grades. These ferritic-austenitic steel fittings provide high strength, exceptional resistance to stress corrosion cracking, and improved weldability—making them ideal for demanding applications across various industries.

Our Duplex Steel Tube Fittings Range

We supply a comprehensive selection of Duplex Steel UNS S31803 Tube Fittings that ensure leak-proof and vibration-resistant connections in instrumentation and process lines:

• Double Ferrule Tube Fittings – Superior sealing, ideal for fluid and gas systems.
• Compression Fittings – Reliable and easy-to-install, suitable for high-pressure applications.
• Ferrule Fittings – Designed for corrosion resistance and high mechanical strength.
• Union Tees, Reducing Unions, and Straight Unions
• Bulkhead Male Connectors and Tube Adapters
• Instrumentation Fittings – Ensure safe and precise system performance in analytical and control systems.

Key Features

• High tensile strength and excellent mechanical durability
• Outstanding resistance to pitting, crevice corrosion, and chloride-induced stress cracking
• Leak-proof connections for high-pressure and vacuum systems
• Available in standard and custom sizes
• Compliance with ASTM A276 / ASME SA494 and other international standards

Applications

Our Duplex Steel S31803 Instrumentation and Compression Fittings are widely used in:

• Oil & Gas Refining
• Petrochemical & Chemical Processing
• Power Generation
• Marine & Offshore Installations
• Pulp & Paper Industry
• Pharmaceutical and Food-grade Piping Systems

Why Choose M Metal Tubes India Pvt Ltd?

• Global Supplier – Exporting to 50+ countries with consistent product availability
• Customized Solutions – Made-to-order sizes and configurations
• Quality Assurance – Rigorously tested and inspected for dimensional and structural accuracy
• Competitive Pricing – Premium quality at industry-leading rates

We welcome you to explore our high-performance Duplex Steel Tube Fittings and request a free quote tailored to your requirements.

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