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Rinku Fasteners, located in Kolkata, India, stands out as a top manufacturer and supplier of premium fastening solutions, including Stainless Steel 304H Washers. Renowned for their precision engineering, durability, and reliability, these washers are crafted to meet the rigorous demands of both industrial and commercial settings. Rinku Fasteners maintains strict quality control and complies with international standards, ensuring products that boast excellent corrosion resistance, strength, and precise dimensions. Stainless Steel 304H Washers are perfect for creating stable, secure connections in high-temperature and corrosive environments, making them a go-to choice for industries like chemical processing, power generation, and heavy machinery.
Stainless Steel 304H Washers are crafted from a high-carbon austenitic stainless steel alloy, primarily featuring 18–20% chromium and 8–10% nickel, with a higher carbon content than standard 304 to boost strength at elevated temperatures. This unique composition offers outstanding corrosion resistance, especially in oxidizing and mildly corrosive environments. Mechanically, 304H washers showcase high tensile strength, good hardness, toughness, and stability under load. Their heat resistance ensures reliable performance in high-temperature applications, while their blend of mechanical and corrosion-resistant properties guarantees durability and long-lasting support in critical fastening assemblies.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
|---|---|---|---|---|---|---|---|---|---|---|
| 304H | min. | 0.04 | – | – | – | – | 18.0 | – | 8.0 | – |
| max. | 0.10 | 2.0 | 0.75 | 0.045 | 0.030 | 20.0 | – | 10.5 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
|---|---|---|---|---|---|
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 304H | 515 | 205 | 40 | 92 | 201 |
| Grade | Stainless Steel 304, 304H, 304L |
| Specifications | ASTM A193 / ASME SA193 |
| Standard | 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 |
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 304H Washers find extensive use in industries that demand dependable, high-strength, and corrosion-resistant fastening solutions. They are particularly suited for applications in chemical processing plants, power generation, boilers, and high-temperature piping systems. These washers are essential for ensuring secure connections in environments where reliability is paramount, making them a preferred choice for professionals seeking quality and performance in their fastening needs.
Our complete testing program for stainless steel 304H washers includes hardness testing, chemical analysis by Spectro analysis, positive material identification (PMI) testing, levelling testing, micro-macro testing, pitting resistance testing, and intergranular corrosion testing. Our commercial invoices, packaging information, certificates of origin, certificates of authenticity, and other documents are required. To further ensure customer satisfaction, we offer third-party inspection certifications, which prove the quality and efficiency of our 304H washers in various applications and demands.
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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