Duplex Steel Fastener - Manufacturer, Supplier & Exporter in India

Duplex Steel Fastener Manufacturer, Supplier & Exporter in India

Duplex Steel Fasteners, known for their exceptional strength and corrosion resistance, are a preferred choice in various industrial applications. Comprising materials like Duplex Steel S31803 and S32205, these fasteners offer superior mechanical properties compared to conventional stainless steels such as 304, 316, and 904L. The unique microstructure of Duplex Steel provides a balanced combination of austenitic and ferritic phases, ensuring high durability and reliability in demanding environments. Whether you are in the oil and gas sector or the marine industry, these fasteners stand out for their performance and longevity.

RAGNAR METALS & TUBE specializes in supplying a comprehensive range of Duplex Steel Fasteners, including grades S31803, S32205, and super duplex grades S32750 and S32760. Our fasteners are engineered to meet rigorous standards, making them suitable for critical applications such as chemical processing, heat exchangers, and structural components. The dual-phase structure of Duplex Steel enhances its resistance to stress corrosion cracking, making it an ideal choice for high-stress environments where traditional materials may fail.

In addition to Duplex Steel, we also offer fasteners made from other high-performance materials including Nickel Alloys like Inconel 600, 625, and Hastelloy C276. These materials are essential for applications requiring exceptional heat and oxidation resistance, such as aerospace and power generation. Our fasteners are designed to withstand extreme temperatures and harsh chemical exposures, ensuring optimal performance and safety in the most challenging industrial settings.

At RAGNAR METALS & TUBE, we prioritize quality and customer satisfaction. Our Duplex Steel Fasteners are manufactured to precise specifications and are available in various sizes and configurations to meet your specific needs. We understand that every project is unique, and our team is dedicated to providing tailored solutions that enhance your operations. Whether you require standard sizes or custom-cut fasteners, we are here to support you with the best products in the market.

Contact us today to learn more about our Duplex Steel Fasteners and how they can benefit your industrial applications. With our extensive inventory and expertise in metallurgy and industrial manufacturing, RAGNAR METALS & TUBE is your trusted partner for all your fastener needs.

Available Grades Table

Duplex Steel Fastener	Composition	Applications
304	18% Cr, 8% Ni	General-purpose, food industry
304L	18% Cr, 8% Ni (low carbon)	Welded components, chemical industry
316	16% Cr, 10% Ni, 2% Mo	Marine, chemical processing
316L	16% Cr, 10% Ni, 2% Mo (low carbon)	Medical implants, welded structures
310	25% Cr, 20% Ni	High-temperature furnace parts
309	23% Cr, 13% Ni	Heat exchangers, high-temp service
321	18% Cr, 9% Ni, Ti	High-temperature services
347	18% Cr, 10% Ni, Nb	Welded pressure vessels
2205 (Duplex)	22% Cr, 5% Ni, 3% Mo	Oil & gas, marine applications
2507 (Super Duplex)	25% Cr, 7% Ni, 4% Mo	Aggressive chloride environments
201	16–18% Cr, 3.5–5.5% Ni, Mn	Utensils, sinks, architecture
202	17–19% Cr, 4–6% Ni, Mn	Railings, cookware, architecture

Specifications Table

Material	Duplex Steel Fastener
Grades	304, 304L, 316, 316L, 321, 347, S31803, S32205, S32750, S32760
Standard	ASTM A312 / A213 / A269 / A358
Size Range	1/2" NB to 24" NB (Seamless), 1/2" NB to 100" NB (Welded)
Length	Single Random, Double Random & Custom Cut
Form	Round, Square, Rectangular

Chemical Properties Table

Element	304 (%)	316 (%)
Carbon (C)	0.08 max	0.08 max
Chromium (Cr)	18.0–20.0	16.0–18.0
Nickel (Ni)	8.0–10.5	10.0–14.0
Manganese (Mn)	2.0 max	2.0 max
Silicon (Si)	1.0 max	1.0 max
Phosphorus (P)	0.045 max	0.045 max
Sulfur (S)	0.030 max	0.030 max
Molybdenum (Mo)	—	2.0–3.0