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Majid Fasteners is a reputable producer and supplier of premium industrial fasteners in Dubai, United Arab Emirates, with a reputation for producing long-lasting, precisely designed goods. The company offers fasteners with remarkable strength, corrosion resistance, and dependability for offshore, marine, chemical, and oil & gas applications, with a focus on Duplex Steel 2205 stud bolts. Majid Fasteners is still the go-to partner for companies in the area looking for reliable, durable, and high-performing fastening solutions because of its strong dedication to quality, prompt delivery, and client satisfaction.
Stud Bolts (Duplex Steel 2205) are composed of approximately 22–23% chromium; 4.5–6.5% nickel; 3.0–3.5% molybdenum, and 0.14–0.20% nitrogen as well as small amounts of manganese, silicon, and copper. The microstructure of Duplex Steel 2205, consisting of both austenitic and ferritic phases generates exceptional resistance against pitting, crevice corrosion, and stress corrosion cracking in environments that are rich in chloride contents. With respect to mechanical properties, Duplex Steel 2205 will have a typical tensile strength of 700–850 MPa and a typical yield strength of 450–550 MPa; in addition, duplex steel will exhibit excellent toughness, fatigue resistance, and stability when exposed to high-pressure and temperature conditions and therefore, it is considered to be an ideal material for high performance marine, industrial, and chemical service applications.
|
Material |
Specification |
Standards |
Size |
Length |
|
Duplex Steel Stud Bolts 2205
|
IS BS ASTM |
ASTM / ASME – A/ SA 479 / 479 |
3 mm to 200 mm |
M02 to M30 |
| Duplex Steel Stud Bolts 2205 | C | N | P | Si | Mn | Mo | Fe | Cr | S | Ni |
| 1.0 | 0.03 | 0.02 | 2.0 | 3.0 – 3.5 | 22.0 – 23.0 | 0.03 | 4.5 – 6.5 | 0.14 – 0.2 | Bal |
|
Grade |
Tensile Strength (MPa) min |
Elongation (% in 50mm) |
Yield Strength 0.2% Proof (MPa) min |
Hardness Rockwell C (HR C) |
|---|---|---|---|---|
|
UNS-S 32205 |
621 |
25 |
448 |
21 max |
Duplex Steel 2205 Stud Bolts have a wide range of applications across various industries due to their exceptional strength, resistance to corrosion and their ability to withstand the harsh conditions of many environments. Stud bolts manufactured from Duplex Steel 2205 are ideal for offshore oil and gas production platforms, underwater subsea systems, marine structures subject to exposure to seawater, as well as any equipment used in contact with chloride. In the Oil and Gas industry, Duplex Steel 2205 Stud bolts have been used throughout history as fasteners for Pipelines, Pressure Vessels, Heat Exchangers and many of the high-pressure components.






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