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Amin Fasteners is a reliable manufacturer and supplier of top-notch Duplex Steel Nuts S31803 based in Safat, Kuwait. They cater to a variety of industrial needs with precision and dependability. Renowned for providing fasteners that boast remarkable strength, resistance to corrosion, and long-lasting durability, the company guarantees that every product adheres to global quality standards. With state-of-the-art production facilities and a strong dedication to customer satisfaction, Amin Fasteners offers Duplex Steel S31803 nuts that are perfect for demanding applications in marine, chemical, and offshore industries. Their commitment to outstanding performance, timely delivery, and competitive pricing has made them a go-to supplier for businesses throughout Kuwait and the Middle East.
Duplex Steel Nuts S31803 are made up of approximately 22% chromium, 5–6% nickel, 3% molybdenum, along with some nitrogen, resulting in a well-balanced microstructure of ferrite and austenite. This unique composition provides excellent resistance to corrosion, particularly against pitting and stress-corrosion cracking. On the mechanical side, these nuts deliver high tensile strength, impressive yield strength, and remarkable toughness, even in low-temperature settings. Their balanced duplex structure enhances resistance to wear, fatigue, and deformation, making them perfect for challenging environments that demand both strength and corrosion resistance.
|
Grade |
Tensile Strength
(MPa) min |
Elongation
(% in 50mm) |
Yield Strength
0.2% Proof (MPa) min |
Hardness
Rockwell C (HR C) |
|---|---|---|---|---|
| Duplex Steel Bolts S31803 |
621 |
25 |
448 |
21 max |
|
Material |
Specification |
Standards |
Size
|
Length |
|
Duplex Steel S31803
|
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 Nuts S31803 find extensive use in industries where high strength and corrosion resistance are essential. They are frequently utilized in offshore platforms, desalination plants, and marine engineering due to their ability to endure chloride-rich conditions. In the chemical processing sector, these nuts provide safe and reliable fastening in harsh, corrosive environments. They are also employed in heat exchangers, pressure vessels, and structural components within the oil and gas industry. Their outstanding mechanical properties make them ideal for high-pressure applications, ensuring safety and reliability in demanding situations.
At Amin Fasteners, Duplex Steel Bolts S31803 are meticulously packaged to ensure their integrity during transit. Each bolt is securely wrapped in protective material to prevent damage, and then placed in sturdy, weather-resistant boxes or crates. Custom packaging options are available to meet specific requirements. Our efficient packaging process safeguards the quality and performance of the bolts, providing customers with reliable, ready-to-use products. This careful handling reflects our commitment to excellence and customer satisfaction.
Amin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Safat, Kuwait, with over 8 years of experience serving global industries.
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