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Mumbai-based Fasteners Mart is one of the leading distributors of high-quality fasteners and industrial components with a diversified portfolio of products catering to various industries including oil and gas, petrochemical, marine, and construction. The company provides durable and corrosion-resistant Super Duplex Steel fasteners in grades such as 2507 and 2205. These fasteners are available in different shapes, like bolts, nuts, washers, and screws, and are manufactured for usage in highly demanding conditions where strength along with resistance towards corrosion is necessary, mostly in offshore and chemical processing applications.
Super Duplex Steel fasteners are essentially composed of a mixture of austenitic and ferritic stainless steel alloys with 25-30% chromium, 3-5% molybdenum, and 4-7% nickel. These fasteners have outstanding mechanical properties with tensile strength of 700 MPa to 1,000 MPa and yield strength of 500 MPa to 750 MPa. They also possess superior resistance against pitting, stress corrosion cracking, and crevice corrosion. Super Duplex Steel fasteners possess high strength at even high temperatures and provide outstanding fatigue and impact resistance, thereby being suitable for demanding applications.
| Specification | IS, BS, ASTM, ASME |
| Grade | Super Duplex Steel | UNS S32750 | S32760 |
| Standard | ASTM A479 ASME SA479 |
| Length | 3mm to 200mm |
| Form | Screw, Nuts, Bolts, Washers |
| Size | 3/6″ to 2″, M3 – M56, Custom Sizes |
| Application | Oil & Gas, Heat exchanger and condenser, Automobile Industry, Engineering, Power plants, Refineries & Petrochemicals, Ship building, Desalination Plants |
| 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 % |
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 fasteners find extensive application in high-strength, corrosion-resistant, and durable industries. They are critical in the oil and gas, marine, and chemical processing industries, especially in offshore platforms, desalination plants, and chemical reactors. They hold components in place in environments exposed to high chloride levels, seawater, and high temperatures. They are also employed in power generation, pressure vessels, and heat exchangers, where reliability and corrosion resistance are paramount for the long-term operation of the equipment.
We ensure safe and timely delivery of Super Duplex Steel fasteners through tie-ups with trustworthy logistics providers. Our packaging materials, such as HDPE bags, corrugated boxes, and wooden crates as per customer requirements, safeguard fasteners from damage during transportation. Every package is sealed and protected to prevent damage, such that the fasteners reach the destination in good condition.
The Fasteners Mart is a leading manufacturer and supplier of high-quality fasteners in Mumbai, India, with over 8 years of experience serving global industries.
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