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Amin Fasteners, a reputable manufacturer and supplier located in Safat, Kuwait, proudly presents its high-quality Duplex Steel Washers S31803. These washers are crafted for exceptional strength, corrosion resistance, and dependable performance in tough industrial settings. Each washer is precision-engineered to ensure even load distribution, protect surfaces from damage, and maintain long-lasting fastening stability. With a commitment to advanced manufacturing techniques and rigorous quality control, Amin Fasteners guarantees that their washers meet international standards. The company prioritizes timely delivery, tailored solutions, and customer satisfaction, making it a go-to choice for Duplex Steel S31803 fastening components across chemical, petrochemical, marine, and industrial sectors.
Duplex Steel Washers S31803 are constructed from a robust duplex stainless steel alloy, featuring around 22% chromium, 5-6% nickel, and 3% molybdenum, along with nitrogen to boost mechanical properties and corrosion resistance. This unique blend provides outstanding protection against pitting, crevice corrosion, and stress corrosion cracking, even in harsh environments like seawater and chemical processing. On the mechanical side, these washers deliver high tensile strength, remarkable toughness, and dimensional stability across a broad temperature range. The combination of duplex stainless steel’s exceptional corrosion resistance and mechanical performance makes S31803 washers a trustworthy option for critical industrial and marine fastening needs.
| 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.
Duplex Steel Washers S31803 are extensively utilized in industries that demand top-notch corrosion resistance, strength, and long-lasting reliability. You’ll find them in chemical processing plants, petrochemical refineries, offshore platforms, desalination facilities, heat exchangers, pumps, and pipeline systems. These washers ensure secure load distribution, prevent surface damage, and maintain the integrity of fastening systems, making them an essential component in various applications.
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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