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Mira Fasteners, a top-notch manufacturer and supplier based in Kuala Lumpur, Malaysia, specializes in high-performance Duplex Steel S31803 Washers that are built to handle the toughest industrial challenges. Crafted from Duplex Stainless Steel UNS S31803, these washers boast an impressive mix of high strength and exceptional corrosion resistance. They’re perfect for environments that face chloride stress, chemical processing, and marine conditions, making them a dependable choice for critical assemblies. Mira Fasteners is committed to delivering top-quality products with precision manufacturing, ensuring that their washers meet ASTM, ASME, and international engineering standards.
Duplex Steel S31803 Washers are made up of around 22% Chromium, 5–6.5% Nickel, 3% Molybdenum, and a balanced amount of Nitrogen to boost strength and pitting resistance. This unique duplex microstructure provides double the yield strength compared to standard austenitic stainless steels. Their mechanical properties include a minimum tensile strength of 620 MPa, yield strength of 450 MPa, and an elongation of at least 25%. These washers also excel in fatigue strength, impact toughness, and resistance to stress corrosion cracking in chloride-rich environments, making them perfect for demanding structural applications.
| 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 S31803 washers are used in applications where high strength and excellent corrosion resistance are required. They are ideal for marine environments, chemical processing, and oil and gas industries. These washers perform well in high-pressure and high-temperature settings, such as in heat exchangers, reactors, and pipelines. Their resistance to stress-corrosion cracking and pitting ensures durability and reliability, making them suitable for demanding industrial conditions where both mechanical performance and resistance to harsh environments are crucial.
At Mira 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.
Mira Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kuala lumpur, Malaysia, with over 8 years of experience serving global industries.
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