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Hamad Fasteners, a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, is dedicated to delivering top-notch fastening solutions tailored for demanding industries. Among their impressive lineup, Duplex Steel Fasteners S31803 truly shine with their exceptional corrosion resistance, remarkable strength, and long-lasting durability. Crafted in accordance with international standards, these fasteners promise reliability even in the harshest environments, making them ideal for sectors like oil and gas, petrochemicals, desalination, marine engineering, and construction. Hamad Fasteners is committed to providing clients with fastening products that ensure outstanding performance and extended service life.
Duplex Steel Fasteners S31803 feature a well-balanced microstructure of austenite and ferrite, enhanced with chromium, nickel, and molybdenum. This unique composition offers outstanding resistance to pitting, crevice corrosion, and stress corrosion cracking caused by chlorides. On the mechanical side, they boast double the strength of standard stainless steels, showcasing high tensile and yield strength, excellent toughness, and impressive fatigue resistance. Their dual-phase structure guarantees durability and reliable performance, even under fluctuating temperatures and high-pressure situations.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | Fe |
| Duplex Steel S31803 | 0.030 max | 1.20 max | 0.80 max | 0.035 max | 0.020 max | 24.00 – 26.00 | 3.00 – 5.00 | 6.00 – 8.00 | 0.24 – 0.32 | 58.095 min |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Duplex Steel S31803 | 7.9 g/cm3 | 1402 °C (2555 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
Standard : DIN, ASTM, BS and all International Standards
Size : 3 mm to 200 mm
Bolt / Screw Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Nuts Size : M3 – M56 | 3/6″ to 2″ | Custom Sizes
Washers Size : M1 – M64 | #4 to 3″ | Custom Sizes
Length : M02 to M33
Types : Nuts, Bolts, Screws, Sockets, Studs, Screw, Hex Set Screw, Socket Screw, Cap Screw, Pan Head Screw, Machine Screw, Socket Head Cap Screw, Allen Cap screw, Wing Screw
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.
These fasteners are commonly utilized in offshore structures, desalination plants, pipelines, heat exchangers, and chemical processing equipment. They also play a crucial role in oil refineries, pressure vessels, marine components, and power generation systems where corrosion resistance and long-term reliability are essential. With their exceptional blend of strength and resilience against harsh conditions, Duplex Steel Fasteners S31803 offer trustworthy and durable fastening solutions for a diverse array of industrial applications.
At Hamad Fasteners, we ensure that our Duplex Steel Fasteners S31803 are meticulously packaged to guarantee their integrity and quality upon delivery. Each fastener is carefully inspected and securely packed using high-quality materials to prevent damage during transit. Our packaging process includes labeling with detailed product information for easy identification. Whether you need bulk packaging or customized solutions, we prioritize your requirements, ensuring that your fasteners arrive in perfect condition, ready for immediate use.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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