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Rinku Fasteners, located in Kolkata, India, stands out as a leading manufacturer and supplier of top-notch Stainless Steel 347H Washers, specifically crafted for high-temperature and corrosive industrial settings. With a reputation for precision engineering and cutting-edge manufacturing techniques, the company is committed to meeting international standards, ensuring that their washers deliver durability, stability, and long-lasting reliability. Designed to endure thermal stress and tough operating conditions, their SS 347H Washers are perfect for critical environments. Rinku Fasteners caters to a diverse array of industries, including petrochemicals, refineries, power plants, and chemical processing, providing products that blend exceptional material strength with dependable performance.
Stainless Steel 347H Washers are crafted from a high-carbon, niobium-stabilized austenitic stainless steel alloy, rich in chromium and nickel. This unique composition boosts resistance to intergranular corrosion, oxidation, and thermal fatigue. The increased carbon content in 347H enhances its high-temperature strength and creep resistance. These washers showcase impressive tensile strength, good ductility, and consistent mechanical stability, even when exposed to elevated temperatures for extended periods. Their niobium stabilization effectively prevents carbide precipitation during welding and heating. SS 347H Washers are built for superior durability and corrosion resistance, making them perfect for demanding, high-temperature industrial applications.
| Grade | C | Mn | Si | P | S | Cr | Cb | Ni | Fe |
| SS 347H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 20.00 | 8xC – 1.10 | 9.00 – 13.00 | 63.72 min |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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SS 347H Washer Specifications |
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| Specifications | : | ASTM A193 ASME SA193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | M02 to M33 |
| Size | : | 3 mm to 200 mm |
| Type | : | Flat Washer, Lock Washer, Sealing Washer, Split Washer, Slot Washer, Machine Washer, Star Washer SPRINGS – Wire Spring & Flat Spring |
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.
Stainless Steel 347H Washers find extensive use in industries that need reliable fastening components capable of enduring extreme heat and corrosive environments. They are frequently employed in heat exchangers, boilers, furnace assemblies, and thermal processing equipment. Petrochemical plants and refineries depend on them for reactors, piping systems, and pressure vessels that face high temperatures and aggressive chemicals. Power generation facilities also rely on these washers for their robust performance in challenging conditions.
We at Rinku Fasteners hold back the highest standards for our stainless steel 347H washers, which is reflected in our careful paperwork practices. Our commitment includes comprehensive trade coverage, packaging. Material documentation, fumigation certificates, heat treatment protocols and stringent quality control programs 4/3.1 In addition to having b, PMI test certificates, and 100% radiography test reports, our unique quality assurance and reliability is bolstered by third party inspection certificates to ensure each washer is completely customer satisfied Carefully packaged to prevent damage in transit, guaranteed to arrive in pristine condition, ready for immediate use in demanding applications in many cases.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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