Duplex Steel S31803 Wires produced and sold by Adinox Overseas can boast of high performance and outstanding strength, as well as, high corrosion resistance reliability. The fasteners are produced out of a very dependable grade, Duplex UNS S31803 that matches ASTM A479 and is famous as one with dual Phase microstructure due to its features that comprise two different phases with S31803 (austenitic) and S31805 (ferritic). This alloy is highly suitable in the harsh environments like marine, petrochemical and offshore industries due to the unique composition of this alloy.
Duplex Steel S31803 Wires have the advantages of ferritic steel strength and austenitic steel corrosion-resistance capabilities, which make them highly resistant and cost-effective as compared to the commercial stainless steels. These fasteners are highly resistant to pitting, crevice corrosions and chloride stress corrosion cracking, and thus, are suitable to be used in chloride-rich environment and acid environment. These fasteners are able to provide almost twice the yield power compared with conventional stainless steel grades like 304 or 316 due to their outstanding mechanical properties, thus they do not require the quantity of material thickness and weight.
Adinox Overseas provides complete and quality fasteners like bolts, nuts, washers, threaded rod, hex screws, and all other fasteners according to the specifications of customers with custom-made fastening solutions. They can all meet international standards such as ASTM A479, ASME SA479 and others of similar standards and thus have been guaranteed to be reliable and consistent in their performance as their specification covers a wide range of applications.
The UNS S31803 Fasteners that we offer have the vast popularity among heat exchangers, pressure vessels, subsea, oil & gas platforms, pulp and paper industries, desalination plants, and structural piping. They can work in high pressures and high temperatures and at the same time show structures without deterioration. These screws are also erosion resistance, fatigue resistance and general corrosion resistant in reducing and oxidising environments.
| Specifications | ASTM A580, ASME SA580 / ASTM A313, ASME SA313 |
|---|---|
| Dimensions | ASTM, ASME |
| Length | Max 12000 mm |
| Diameter | 5.5 – 400 mm |
| Specialize | Wire, Coil Wire |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
|---|---|---|---|---|---|---|---|---|---|---|
| S31803 | 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 |
| Grades | Density (g/cm 3) | Density (lb/in 3) | Melting Point (°C) | Melting Point (°F) |
|---|---|---|---|---|
| S31803 | 7.8 | 0.281 | 1350 | 2460 |
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