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Product Overview
Introduction To AL 6XN / UNS N08367 / W.Nr. 1.4529
MOKSH TUBES & FITTINGS LLP is a trusted manufacturer, supplier, exporter, importer, and stockist of AL 6XN Alloy (UNS N08367) products including Pipes & Tubes, Pipe Fittings, Flanges, Sheets & Plates, Coils, Wires, Round Bars, Forged Components, Fasteners, Welding Electrodes, and custom-engineered parts.
AL 6XN is a superaustenitic stainless steel designed for superior corrosion resistance in aggressive chloride environments, especially where standard stainless steels (like 316L) are inadequate. It is known for its high nickel (24%), molybdenum (6.3%), and nitrogen content, providing excellent resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC). Its strength, formability, and weldability make it ideal for critical applications in chemical processing, marine environments, pulp & paper, food, and pharmaceutical industries.
Chemical Composition
| Element | Composition (%) |
|---|---|
| Nickel | 23.5 – 25.5 |
| Chromium | 20.0 – 22.0 |
| Molybdenum | 6.0 – 7.0 |
| Iron | Balance |
| Nitrogen | 0.18 – 0.25 |
| Manganese | 2.0 max |
| Silicon | 1.0 max |
| Carbon | 0.03 max |
| Phosphorus | 0.04 max |
| Sulfur | 0.03 max |
Technical Composition
Physical Properties
| Property | Imperial | Metric |
|---|---|---|
| Density | 0.292 lb/in³ | 8.08 g/cm³ |
| Melting Point | 2415–2535 °F | 1324–1390 °C |
| Specific Heat | 0.11 BTU/lb·°F | 460 J/kg·K |
| Electrical Resistivity | 53.9 µΩ·cm | — |
| Thermal Conductivity | 8.7 W/m·K | — |
| Magnetic Permeability | Non-magnetic | — |
Mechanical Properties
| Property | Annealed | Cold Worked | Solution Treated / Aged |
|---|---|---|---|
| Tensile Strength (ksi / MPa) | 75–95 ksi / 520–655 MPa | 90–110 ksi / 620–760 MPa | 90–115 ksi / 620–790 MPa |
| Yield Strength (0.2%) (ksi / MPa) | 30–50 ksi / 205–345 MPa | 60–90 ksi / 415–620 MPa | 65–90 ksi / 450–620 MPa |
| Elongation (%) | 30–50% | 15–30% | 15–30% |
| Hardness (Rockwell B / C) | 70–90 B | 80–95 B | 80–95 B |
| Brinell Hardness (HB) | 150–200 HB | 180–230 HB | 180–230 HB |
Products in AL 6XN
AL 6XN is commonly supplied as:
We supply AL 6XN materials in accordance with the most stringent industry standards:
Uses and Advantages
Outstanding Resistance to pitting, crevice corrosion, and SCC
Performs in high-temperature, high-chloride environments
Excellent weldability without post-weld heat treatment
Non-magnetic and seawater resistant
Suitable for sanitary and ultra-clean applications
Applications of AL 6XN
AL 6XN is widely chosen for critical applications where corrosion resistance is vital. Key industries and uses include:
Marine Applications
Desalination plants, seawater cooling systems, marine heat exchangers, pump housings.
Chemical Processing
Heat exchangers, process vessels, piping in acidic and chloride-rich environments.
Food & Beverage Industry
Equipment in brine systems, salt evaporators, and pickling lines.
Pharmaceutical & Biotech
High-purity process piping, tanks, and clean-in-place (CIP) systems.
Pulp & Paper
Bleaching equipment, digesters, and chlorination systems.
Power Generation
Condensers, flue gas desulfurization (FGD) systems.
WHY CHOOSE US?
FAQ's
What is AL 6XN Alloy and why is it important?
AL 6XN (UNS N08367) is a superaustenitic stainless steel known for its exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking (SCC) in aggressive chloride environments. With high nickel (24%), molybdenum (6.3%), and nitrogen content, it outperforms standard stainless steels like 316L. Its strength, excellent formability, and weldability make it ideal for applications where durability and corrosion resistance are critical, including chemical, marine, and pharmaceutical industries.
What AL 6XN products does Moksh Tubes & Fittings LLP supply?
Moksh Tubes & Fittings LLP offers a comprehensive range of AL 6XN products, including seamless and welded pipes, capillary and U-bend tubes, boiler and heat exchanger tubes, sheets, plates, coils, strips, round, flat, hex, and square bars, pipe fittings, flanges, fasteners, welding electrodes, wires, and custom-engineered components. All products are manufactured to meet stringent international quality standards and are available in customized dimensions for diverse industrial needs.
What are the advantages of using AL 6XN?
AL 6XN provides outstanding resistance to corrosion in high-chloride and acidic environments, making it suitable for critical applications. It offers superior performance in pitting, crevice corrosion, and SCC, excellent weldability without the need for post weld heat treatment, non magnetic properties, and high durability in seawater. Its combination of corrosion resistance and strength ensures long-lasting reliability even in harsh operating conditions.
Which industries commonly use AL 6XN Alloy?
AL 6XN is widely used in marine and desalination applications, chemical processing plants, food and beverage production, pharmaceutical and biotech industries, pulp and paper mills, and power generation. Its ability to resist chloride induced corrosion makes it ideal for seawater cooling systems, heat exchangers, process piping, tanks, clean-in-place (CIP) systems, bleaching equipment, and flue gas desulfurization (FGD) components.
Why choose Moksh Tubes & Fittings LLP for AL 6XN supply?
Moksh Tubes & Fittings LLP is a trusted manufacturer, supplier, and exporter of high-grade AL 6XN Alloy products. The company ensures strict quality control, mill test certification (MTC), ISO-certified processes, and fast global delivery. With expertise in high-performance alloys and custom fabrications, Moksh Tubes & Fittings LLP provides reliable solutions for critical industrial applications, ensuring consistent product performance and customer satisfaction.
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