Duplex Steel Anchor
Duplex Steel Anchor
Duplex Steel Anchor Fasteners Manufacturer in India
AN Fasteners is a leading manufacturer and exporter of Duplex and Super Duplex Steel Anchor Fasteners in India. Engineered for superior strength and corrosion resistance, these fasteners are designed to withstand aggressive environments where conventional stainless steel fails. Our anchor fasteners are widely used in the marine, chemical, offshore, desalination, oil & gas, and heavy industrial sectors.
What Are Duplex Steel Anchor Fasteners?
Duplex Steel Anchor Fasteners are precision-engineered anchoring solutions made from Duplex (UNS S31803, S32205) and Super Duplex (UNS S32750, S32760) grades. These fasteners offer exceptional resistance to stress corrosion cracking, crevice corrosion, and pitting, while delivering twice the strength of standard 304/316 stainless steels. They are ideal for demanding structural and mechanical applications in harsh and corrosive environments.
Types of Duplex Steel Anchor Fasteners
- Wedge Anchor
Expands upon installation to create a powerful mechanical grip
Suitable for industrial equipment, concrete bases, and structural columns - Sleeve Anchor
Slotted expansion sleeve for superior hold in concrete and masonry
Ideal for bridges, high-rise buildings, and utility installations - Drop-In Anchor
Internally threaded and expands inside the hole
Best for piping systems, cable trays, and ceiling-mounted fixtures - Expansion Anchor
Provides strong tension and shear resistance once expanded
Commonly used in turbines, reactors, and chemical process equipment - Chemical Anchor (Resin-Based)
Bonded with resin adhesives for secure anchoring in high-vibration zones
Recommended for earthquake zones, energy plants, and tunnel infrastructure - Hook Anchor (L-Bolt & J-Bolt)
Designed for embedment in concrete for structural steel connections
Used in offshore rigs, docks, marine ports, and industrial tanks - Eye Bolt Anchor
Features a circular head for attachment of wires, ropes, or cables
Used in shipbuilding, hoisting mechanisms, and aerospace fixtures - Toggle Bolt Anchor
Specialized for hollow substrates like drywall, composite panels
Perfect for light-duty fixing in marine interiors and modular assemblies
Specifications & Features
Standards: ASME, DIN, ISO, BS, IFI, IS, UNI, PN
Size Range: Metric (M6 to M100) | Imperial (¼″ to 4″)
Material Grades:
- Duplex Steel 2205: UNS S31803, UNS S32205
- Super Duplex 2507: UNS S32750, UNS S32760
Thread Types: Fully Threaded & Partially Threaded
Manufacturing Process: Hot Forged & Cold Forged for high precision
Coating Options: Passivated | PTFE Coated | Zinc Plated | Nickel Plated | Black Phosphate
Applications of Duplex Steel Anchor Fasteners
✔ Oil & Gas Industry: Used in offshore rigs, drilling units, and refinery systems
✔ Marine & Shipbuilding: Withstands saltwater corrosion in subsea structures
✔ Chemical Plants: Ideal for acid-resistant anchoring in chemical tanks and units
✔ Desalination Plants: Performs under high salinity and chloride-rich exposure
✔ Construction & Infrastructure: Used in bridges, tunnels, and high-load foundations
✔ Aerospace & Defense: Delivers performance under pressure and temperature extremes
Why Choose AN Fasteners for Duplex Steel Anchor Fasteners?
✔ In-House Production with Material Traceability (MTC)
✔ High Nickel-Chromium Alloys for Corrosion Resistance
✔ Manufactured to Global Standards (ASME, DIN, ISO, etc.)
✔ Fast Dispatch for Urgent & Bulk Industrial Projects
✔ Tailored Solutions for Offshore, Marine & Chemical Environments
Bulk Orders, Customization & Delivery
- 📌 Custom sizes and threading available as per your project drawing or technical specs
- 📦 Corrosion-protected packaging for export and domestic deliveries
- 🌐 Worldwide shipping with complete documentation and quality certifications
📞 Request a Quote Today
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AN Fasteners—trusted worldwide for performance under pressure.