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MUKAU FASTENERS is a reliable manufacturer and supplier based in Kinshasa, Congo, specializing in high-performance Duplex Steel 2205 Stud Bolts designed for tough industrial settings. These stud bolts are known for their impressive strength, resistance to corrosion, and durability, making them perfect for critical applications. With a unique dual-phase microstructure of ferritic and austenitic stainless steel, Duplex Steel 2205 Stud Bolts offer outstanding protection against pitting, crevice corrosion, and stress corrosion cracking. MUKAU FASTENERS is committed to precision manufacturing, ensuring dimensional accuracy and adhering to strict quality standards, so you can count on their products to excel in challenging marine, chemical, and oilfield environments.
Duplex Steel 2205 Stud Bolts are made up of about 22% chromium, 5–6% nickel, 3% molybdenum, along with trace elements of nitrogen, manganese, and silicon. This well-balanced composition boosts their corrosion resistance and mechanical performance. The bolts showcase a high tensile strength ranging from 620 to 880 MPa and a yield strength of around 450 MPa, which is double the strength of standard stainless steels. They also exhibit excellent fatigue resistance, hardness, and stability under high pressure and temperature, ensuring they provide long-lasting, dependable service in corrosive environments.
| 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 |
|
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
|
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Duplex Steel 2205 Stud Bolts are extensively utilized in industries that demand strong mechanical properties and exceptional corrosion resistance. Common applications include offshore oil rigs, marine equipment, desalination systems, heat exchangers, and pressure vessels. They are particularly well-suited for connecting flanges, valves, and pumps in chemical processing plants and refineries. Their ability to resist chloride stress corrosion cracking and erosion makes them ideal for harsh environments, such as seawater and acidic conditions. With Duplex Steel 2205 Stud Bolts, you can trust in the structural integrity, safety, and longevity of critical industrial assemblies and construction projects.
At Mukau Fasteners, we ensure Duplex Steel Stud Bolts 2205 are meticulously packaged to maintain their quality during transit. Each bolt is individually inspected and wrapped in protective materials to prevent damage. Our packaging includes durable, corrosion-resistant containers designed to safeguard against environmental factors. Clearly labeled and securely sealed, our packaging ensures that products arrive in pristine condition. We prioritize careful handling and efficient delivery, guaranteeing that our Duplex Steel Stud Bolts 2205 meet your highest expectations upon arrival.
Mukau Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kinshasa, Congo, with over 8 years of experience serving global industries.
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