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Duplex Steel threaded rods are robust fastening components crafted from a unique blend of austenitic and ferritic stainless steels, giving them a dual-phase microstructure. This special design not only delivers remarkable mechanical strength but also offers top-notch corrosion resistance and impressive durability, even in tough chemical and marine settings. These rods are particularly good at resisting pitting, crevice corrosion, and stress corrosion cracking caused by chlorides, making them a dependable choice for critical applications in industries like petrochemical, oil and gas, and marine engineering.
Typically, Duplex Steel threaded rods contain about 22–25% chromium, 4–7% nickel, 2–4% molybdenum, along with nitrogen additions that boost their strength and corrosion resistance. They boast a tensile strength ranging from approximately 620–850 MPa and a yield strength of around 450–550 MPa, all while maintaining excellent toughness and fatigue resistance. Their balanced microstructure ensures they remain stable and resistant to intergranular corrosion, even when faced with high pressure and temperature.
| Trade name | Duplex S31803 / S32205 / 2205 Threaded Rod |
| Duplex Steel Threaded Rod Standard | ASTM A479, F593 / ASME SA479, SF593 |
| Duplex Threaded Rod Dimensions | ASTM, DIN, BS, GB, IS and all International Standards |
| Duplex Steel Threaded Rods Size Range | M6 to M52 & 1/4″ to 2″ |
| Duplex Steel Threaded Rods Length | 1000mm to 3000mm & 1feet to 12feet |
| Duplex Threaded Rods Finish | Zinc Plated, Plain, Hot Dip Galv. & Yellow Zinc |
| SF 593 Duplex Steel Threaded Rods Marking | All Fasteners are marked as follows: Grade, Standard, Thickness, Heat No. (Or according to the customer’s request.) |
| Delivery Time | 7-15 working days as usual, It will based on the detailed order quantity. |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel Threaded Rod in Cape Town , South Africa, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Cape Town, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
These threaded rods find their place in various applications, including pressure vessels, heat exchangers, desalination plants, offshore platforms, and structural projects that are exposed to seawater or acidic solutions. Their blend of high load-bearing capacity, corrosion resistance, and cost-effectiveness makes them perfect for both structural and fastening systems. With reliable performance, a long service life, and minimal maintenance needs, they thrive in aggressive and high-stress environments.
