Request For Our Latest Prices On Duplex Steel Nuts 2205 in Kolkata, India!
Rinku Fasteners, headquartered in the bustling industrial hub of Kolkata, India, is a renowned manufacturer and supplier of premium Super Duplex Steel Nuts. Designed for exceptional strength and corrosion resistance, these nuts are crafted to perform reliably in the harshest industrial environments. Known for their precision engineering and long service life, Super Duplex Steel Nuts are ideal for applications exposed to extreme pressures, chemical corrosion, and seawater environments. With advanced manufacturing techniques and strict quality assurance, Rinku Fasteners delivers fastening solutions that meet global performance standards and exceed customer expectations.
Super Duplex Steel Nuts are made from a high-alloy, dual-phase stainless steel containing elevated levels of chromium, molybdenum, and nitrogen. This unique composition provides outstanding resistance to pitting, crevice corrosion, and stress-corrosion cracking. Mechanically, these nuts offer exceptionally high tensile and yield strength, far superior to standard stainless steels. They also maintain excellent toughness and structural stability even under extreme temperatures and high mechanical loads. Their enhanced hardness, fatigue resistance, and dimensional reliability make Super Duplex Steel Nuts ideal for critical and long-term fastening applications.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel Nuts 2205 | 0.030 max | 2.00 max | 1.00 max | 0.030 max | 0.020 max | 21.0 – 23.0 | 2.50 – 3.50 | 4.50 – 6.50 | 0.8 – 0.20 | 63.54 min |
| Duplex Steel | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
| Duplex Steel Nuts 2205 | 7.805 | 0.285 | 1420 – 1465 | 2588 – 2669 |
| Duplex Steel 2205 Nuts | ASTM / ASME SA 790 UNS NO S 31803 | ASTM / ASME SA 182 F51 |
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.
Super Duplex Steel Nuts are widely used across industries that demand fasteners with superior mechanical strength and resistance to aggressive environments. They are essential in offshore platforms, subsea equipment, desalination plants, and marine engineering, where saltwater corrosion is a major concern. Chemical processing plants, oil and gas refineries, and high-pressure systems also rely on these nuts for secure, long-lasting fastening. Their ability to withstand extreme conditions makes them suitable for heat exchangers, pumps, valves, power generation units, and heavy structural assemblies. In any high-stress or corrosive setting, Super Duplex Steel Nuts offer dependable, enduring performance.
At Rinku Fasteners, Duplex Steel Nuts 2205 are Carefully packaged to ensure safe delivery and maintain product integrity. Each nut is individually inspected and securely wrapped in protective materials to prevent damage during transit. We use high-quality, durable packaging that safeguards against environmental factors and handling stresses. Our packaging solutions include labeled cartons and, when required, custom packaging to meet specific client needs. This attention to detail ensures that your Duplex Steel Nuts 2205 arrive in pristine condition.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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