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Russ Fasteners is a well-known manufacturer and supplier of top-notch fastening solutions, proudly based in Singapore and catering to the Pulau Ujong industrial hub and beyond. Among their impressive range of products are Duplex Steel Fasteners, designed for exceptional strength and corrosion resistance in tough environments. These fasteners are perfect for applications that demand high mechanical performance and resistance to chloride-induced stress corrosion cracking. Russ Fasteners guarantees that every Duplex fastener adheres to strict international standards, serving industries like offshore, marine, petrochemical, and wastewater treatment. With a strong focus on product reliability and outstanding customer service, Russ Fasteners has earned its reputation as a trusted name in specialized fastener supply.
Duplex Steel Fasteners boast a unique dual-phase microstructure of austenite and ferrite, typically featuring 21–23% chromium, 4.5–6.5% nickel, and 2.5–3.5% molybdenum. This carefully balanced composition delivers remarkable strength and corrosion resistance, especially in chloride-rich settings. These fasteners usually provide tensile strengths ranging from 620–800 MPa and yield strengths that are nearly double those of standard austenitic stainless steels. They show impressive resistance to stress corrosion cracking, pitting, and crevice corrosion. Additionally, Duplex fasteners maintain good weldability and toughness, even in low temperatures, making them ideal for demanding structural and corrosive applications.
| Phosphorus | Sulphur | Silicon | Carbon | Manganese | Nickel | Molybdenum | Nitrogen | Copper | Chromium |
|---|---|---|---|---|---|---|---|---|---|
| 0.035 % max | 0.02 % max | 0.80 % max | 0.03% Max | 1.20 % max | 6.00 – 8.00 % | 3.00 – 5.00 % | 0.24 – 0.32 % | 0.50 % max | 24.0 – 26.0 % |
| Grade | YS (MPa) | UTS (MPa) | % Elongation | Hardness(BHN) |
| UNS S32750 | 550 min. | 795 min. | 15 min. | 310 max. |
| UNS S32760 | 550 min. | 750 min. | 25 min. | 270 max. |
| Specifications | : | ASTM A182 / ASME SA182 |
| Size | : | 1/8″ NB TO 24″ NB |
| Standards | : | ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc. |
| Class / Pressure | : | 150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc. |
| Standard | : | ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc. |
| Grades | : | S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F6 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Duplex Steel fasteners are widely used in applications requiring high strength and corrosion resistance. Ideal for marine applications, offshore platforms, chemical plants, oil and gas systems due to durability in harsh environments These fasteners protect critical components in high pressure and high temperature environments, including pipelines, reactors and structural framework ensuring, and reducing maintenance costs
Duplex Steel Fasteners find extensive use in situations that require both high mechanical strength and resistance to harsh corrosion. They’re crucial in offshore oil rigs, subsea pipelines, and marine environments due to their ability to withstand saltwater corrosion. In the chemical and petrochemical sectors, they’re utilized in heat exchangers, pressure vessels, and reactors that come into contact with aggressive acids and chlorides. Duplex fasteners also play a vital role in ensuring the integrity and safety of various industrial applications.
Russ Fasteners is a leading manufacturer and supplier of high-quality fasteners in Pulau ujong, Singapore , with over 12 years of experience serving global industries.
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