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Murad Fasteners stands out as a reliable manufacturer and supplier based in Doha, Qatar, specializing in top-notch Duplex Steel Washers S31803 designed for tough industrial and infrastructure needs. Crafted with cutting-edge technology and rigorous quality checks, these washers guarantee precise dimensions, a smooth surface finish, and dependable performance. Murad Fasteners offers Duplex Steel Washers S31803 in a variety of sizes and specifications to align with international standards and specific project demands. Renowned for their durability and exceptional resistance to corrosion, these washers play a crucial role in enhancing the stability and load distribution of bolted connections, making them the perfect fastening solution for energy, petrochemical, marine, and heavy industrial projects throughout Qatar and the Middle East.
Made from a unique dual-phase austenitic-ferritic stainless steel alloy that includes chromium, nickel, molybdenum, and nitrogen, Duplex Steel Washers S31803 boast impressive tensile and yield strength, outstanding toughness, and remarkable resistance to stress corrosion cracking. Their mechanical properties feature enhanced load-bearing capacity, good fatigue resistance, and stability even under high pressure and temperature fluctuations. Additionally, these washers are highly resistant to pitting and crevice corrosion, ensuring they perform reliably in harsh and chloride-rich environments.
| Grade | Duplex Steel UNS S31803 / S32205 |
| Specifications | ASTM A 479 ASME SA 479 |
| Dimension | DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Types | Star Washer, Flat Washer, Lock Washer, Slot Washer, Machine Washer, Sealing Washer, Split Washer, Dome Tooth Washer, Countersunk Washer, Tab Washers, Spherical Washer, Square Washer, Spring Washer, Round Washers, Square Washers etc |
| S31803 / S32205 | 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 |
| S31803 / S32205 | Density | Melting Point | Yield Strength (0.2%Offset) | Tensile Strength | Elongation |
| 7.8 g/cm3 | 1350 °C (2460 °F) | Psi – 80000 , MPa – 550 | Psi – 116000 , MPa – 800 | 15 % |
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 Washers S31803 are extensively utilized in sectors that demand corrosion-resistant and high-strength fastening solutions. You’ll find them in oil and gas pipelines, offshore platforms, petrochemical plants, refineries, and chemical processing equipment. They’re also used in marine structures, desalination plants, heat exchangers, pressure vessels, and heavy structural assemblies. Thanks to their durability, reliability, and minimal maintenance needs, Duplex Steel Washers S31803 are perfect for flanged joints, bolted connections, and critical installations that face tough environmental and operational challenges.
At Murad Fasteners, we prioritize the safety and quality of our Duplex Steel S31803 washers during delivery. Each washer is thoroughly inspected and individually wrapped in protective packaging to prevent damage. They are then placed in tightly labeled boxes with product details and detailed quantities. Our packaging is designed to protect the environment and physical impact, ensuring that your high-performance washer arrives in prime condition and ready for immediate use.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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