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Aria Fasteners, located in Hamilton, New Zealand, is a reliable manufacturer and supplier of top-notch Duplex Steel Bolts S31803, specifically designed for critical applications in industrial, marine, and chemical sectors. With a reputation for precision engineering and a strong commitment to international standards and quality control, Aria Fasteners caters to industries like oil and gas, petrochemical, marine engineering, and power generation. Their bolts are known for outstanding mechanical strength, impressive corrosion resistance, and long-lasting reliability, even in the toughest environments. Thanks to their focus on technical expertise, prompt delivery, and customer satisfaction, they’ve established themselves as a leading provider of premium Duplex Steel fastening solutions around the globe.
Duplex Steel Bolts S31803 are crafted from a unique blend of duplex stainless steel, which merges austenitic and ferritic microstructures to deliver exceptional tensile strength and corrosion resistance. These bolts are particularly resilient against stress corrosion cracking, pitting, and crevice corrosion, especially in harsh, chloride-rich environments. Their remarkable fatigue strength and toughness make them perfect for high-pressure and high-stress applications. With precision heat treatment, these bolts maintain consistent mechanical properties and dimensional accuracy, making them ideal for securing critical connections in pipelines, pressure vessels, flanged joints, and offshore structures where durability and corrosion resistance are non-negotiable.
|
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 Bolts S31803 are widely used in demanding industries due to their high strength and corrosion resistance. They are ideal for applications in marine environments, chemical processing, oil and gas industries, and construction. These bolts are commonly employed in critical structures like pipelines, pressure vessels, and marine equipment. Their durability and resistance to stress corrosion cracking make them suitable for high-pressure and high-temperature environments, ensuring reliable performance and longevity in challenging conditions.
In various industries that demand secure fastening, high mechanical strength, and reliable long-term performance in challenging conditions, Duplex Steel Bolts S31803 are a go-to choice. You’ll find them commonly used in marine structures, offshore platforms, chemical processing plants, pipelines, heat exchangers, and flanged assemblies. Their outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking ensures that they provide safe and durable connections, making them essential for any project that requires top-tier fastening solutions.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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