Sagar Steel Corporation is a trusted Duplex Fasteners Manufacturer that deals with fasteners, duplex fasteners to be more specific, which have been precision-engineered into duplex stainless steel as its main element, showing both the austenitic and ferritic structure. Such fasteners are manufactured to the highest standards with materials that are strong mechanically, with high pitting and stress corrosion resistance. Duplex fasteners are constructed for heavy-duty applications in specific industries such as the desalination industry, offshore platforms, pressure vessels, and the chemical processing industry. Typical applications are construction, oil and gas infrastructure, bridges, and marine hardware where tensile strength and corrosion resistance are important. Discover strong and reliable Hastelloy Fasteners made for your applications.
Duplex Fasteners
Minimum Order : 50 piece
Customization as per requirements
Duplex Fasteners – Specification
| Size | M6 to M24 |
|---|---|
| Type | Bolt, Nut, Screw, Washer, Rivet, Threaded Rod, Studs, Coated, Nails, Custom Fasteners |
| Standard | Din, Iso, Jis, Gb, Is, Bs, Astm |
| Length | 60 mm |
| Material | Stainless Steel, Monel, Inconel, Incoloy, Hastelloy, Nickel, Silicon Bronze, Phosphor Bronze |
Duplex Fasteners Manufacturer in India
Type of Sub-products

Duplex Nuts Duplex Nuts
Heavy duty threaded nuts designed to pair with duplex bolts for high strength fastening. Excellent for high pressure pipelines, offshore structures, and industrial tanks where joint integrity is critical.

Duplex Hex Bolts Duplex Hex Bolts
Engineered with a six sided head and manufactured from S31803/S32205 duplex stainless steel, these bolts provide superior mechanical strength and corrosion resistance. Common in structural assemblies, chemical plants, and oil refineries.
Frequently Asked Questions
What materials are used in Duplex Fasteners?
Duplex Fasteners are manufactured using duplex stainless steel grades like UNS S31803 and S32205. These materials combine the benefits of austenitic and ferritic structures, offering high strength and excellent resistance to corrosion and stress cracking.
What makes Duplex Fasteners suitable for harsh environments?
Their dual-phase microstructure enhances resistance to pitting, crevice corrosion, and stress corrosion cracking, making them ideal for offshore platforms, marine equipment, and chemical plants
Can Duplex Fasteners handle elevated temperatures?
Duplex Fasteners perform well in moderate to high temperatures, typically up to 300°C, beyond which the risk of microstructural changes increases, impacting corrosion resistance.
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Countries We Export – Duplex Fasteners
- India
Cities We Supply – Duplex Fasteners
- Mumbai
- Lucknow
- Nashik
- Pune
- Rajkot
- Moradabad
- Angul
- Rudrapur
- Hosdurg
- Gandhinagar
- Rajahmundry
- Durgapur
- Bharuch
- Panipat
Industries We Serve – Duplex Fasteners
Sugar
Oil And Gas Industries
Paper Mill
Power Plant
Bridge And Building
Aerospace Industries
Automobile Industry
Electrical Industry
Defense Industry
Construction & Fabrications
Ring Man Units
Railways

Gasket Industry
Pharmaceuticals Industry
