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Duplex Steel 2205 wire is a robust stainless steel product known for its unique dual-phase microstructure, which combines austenite and ferrite. This special structure gives it remarkable mechanical strength, exceptional corrosion resistance, and impressive durability, making it perfect for tough environments like chemical processing, petrochemical industries, oil and gas, marine applications, and various industrial settings. The wire is particularly resistant to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides, ensuring it performs reliably even in harsh conditions.
Typically, Duplex Steel 2205 wire contains about 22–25% chromium, 4–7% nickel, 2–3% molybdenum, and nitrogen, all of which boost its mechanical strength and corrosion resistance. It boasts a tensile strength of around 620–850 MPa and a yield strength of about 450–550 MPa, along with excellent toughness, ductility, and fatigue resistance. The balanced duplex microstructure also contributes to its thermal stability and resistance to intergranular corrosion, making this wire a dependable choice for high-stress and high-temperature applications.
| Specifications | : | ASTM A276 ASME SA276 |
| Dimensions | : | ASTM, ASME |
| Thickness | : | 10mm to 100mm |
| Diameter | : | 100 mm To 6000 mm |
| Specialize | : | Wire, Filler Wire, Coil Wire |
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N |
| S31803 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.010 max | 21.0 – 23.0 | 4.5- 6.5 | 2.5 – 3.5 | 0.08 – 0.20 |
| 2205 | 0.03 max | 2.0 max | 1.0 max | 0.03 max | 0.010 max | 22.0 – 23.0 | 4.5- 6.5 | 3.0 – 3.5 | 0.14 – 0.20 |
| Tensile Strength | 650 -850MPa |
| Elongation (Min) | 30 % |
At Themban Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Duplex Steel 2205 Wire 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.
You’ll find Duplex Steel 2205 wire commonly used in making fasteners, springs, welding components, reinforcement parts, and structural assemblies that are exposed to seawater, acids, and other corrosive substances. Its blend of high mechanical strength, corrosion resistance, and durability guarantees a long service life, low maintenance needs, and reliable performance in demanding industrial and marine environments.
