Duplex fasteners are high-quality items made of duplex stainless steel later and belong in the combination of strength and elasticity, resistance to corrosion, and durability dimensions to among the best possible. They are applied in the oil, gas, petrochemical, the sea and construction fields where convenient and dependable fastening devices are required on important applications. Duplex stainless steels are extremely resistant to pitting and crevice corrosion and stress cracking corrosion. Therefore, duplex steel fasteners are ideal in chemistry applications fasteners as well as saltwater and high-pressure fasteners with all the advantages of a variety of austenitic and ferritic stainless steel fasteners. It is possible to have fasteners of all types bolts, nuts, screws, washers, and studs allowing duplex fasteners to be versatile to meet other industrial needs. The grades, Duplex 2205 and Super Duplex 2507 contain additional strength and also able to resist corrosion and survive the harsh environments.
Indeed their strength has even been reported to be double and even thrice that of regular stainless fasteners; therefore they can handle more weight and a much harsher environment. These thus can be utilized freely in sturdy purposes such as pipelines, heat exchangers and offshore platforms. Duplex steel fasteners are available in abundance of sizes, thread pattern and surface finishing according to the specification of the customer regarding a particular project. This makes them a steady means of cutting down the cost of essential operation in the sense of maintenance. Where durability, resistance to corrosion, and reliability are the key parameters, duplex steel fasteners will excel in all conditions even under the harshest industrial conditions.
TECHNICAL SPECIFICATION OF DUPLEX STEEL FASTENERS
| MATERIAL GRADE | DUPLEX 2205, 32205, 31803, ETC. |
| SIZE | M6 TO M72, AND ¼” TO 3” LENGTH UPTO 3000MM |
| DIN STANDARD | DIN 444, DIN580, DIN 912,DIN 916, DIN 931, DIN 933, DIN 934, 936,DIN 938, DIN 939, DIN 975, DIN 976,DIN 982 DIN 985,DIN 1587, DIN 7992, DIN 3570, DIN 9362. |
| THREAD STANDARD | METRIC, BSW, UNC, UNF |