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Punit Fasteners, located in Delhi, India, has earned a solid reputation as a reliable manufacturer and supplier of top-notch stainless steel fasteners, particularly their specialized range of Stainless Steel 304H nuts. Renowned for their precision engineering and durability, Punit Fasteners ensures that their products meet global quality standards, providing dependable fastening solutions for even the most demanding industrial applications. These Stainless Steel 304H nuts are specifically designed to perform well under high temperatures while offering excellent mechanical strength. With state-of-the-art manufacturing facilities and a strong focus on customer satisfaction, the company caters to a diverse range of industries, including petrochemical, power generation, heat exchangers, and chemical processing, both in India and around the globe.
Stainless Steel 304H is a high-carbon version of the 304 stainless steel grade, featuring 18–20% chromium, 8–11% nickel, and 0.04–0.10% carbon. This unique composition enhances its strength at high temperatures and improves creep resistance, all while maintaining its corrosion resistance and formability. The mechanical properties of 304H nuts boast a tensile strength of about 585 MPa, a yield strength of 240 MPa, and an elongation of roughly 40%. With a hardness rating of around 95 HRB, these nuts are perfect for high-temperature applications where standard 304 might struggle under thermal stress.
| 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 |
| Specifications | DIN, ISO ,JIS ,GB, IS, BS, ASTM |
| Standard | ASTM A193 / A194, ASME SA193 / SA194 |
| Size | M2 – M100 |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions Standard | DIN: DIN931, 933, 934, 7991, 976, 125 ISO: ISO 4033, 4032 ASME B18.5, B18.3 |
| Form | Hex, Threading, Square, Round as per Gauge Etc. |
| Threads | Unless otherwise specified, the threads shall be rolled or cut and tapped horizontally or vertically |
| Threads available | UNF, BSW, BSF, METRIC, UNC, or as required |
| Threads Configuration | ASME B1.1 2A/3A – 2B/3B Inch Unified Threads and B1.13M 6h-6G Metric Coarse Threads |
| Certification | Dual Certified As per ASTM & ASME Codes |
| Test Certificate | As per EN 10204 / 3.1 Manufacturer Test Certificate, PED 97/23/EC Certified, Merkblatt AD 2000 W2 Certified |
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.
You’ll find Stainless Steel 304H nuts widely used in high-temperature and high-pressure settings due to their superior strength and thermal stability. They are commonly found in industries like power generation, petrochemical, oil and gas, and chemical processing, where they play crucial roles in boilers, heat exchangers, superheaters, and reactors. Thanks to their high carbon content, they maintain their mechanical properties even in extreme heat, making them ideal for structural and pressure-bearing components. Additionally, they are utilized in industrial furnaces, steam pipelines, and refinery equipment. 304H nuts are also well-suited for welded structures that need to perform in environments where both strength and corrosion resistance are essential.
We ensure that we have complete documentation for our Stainless Steel 304H nuts. Commercial invoices, packaging documents, heat treatment charts, quality control charts, and NABL-approved reports on laboratory testing are included. Our commitment to quality extends to issuing various test certificates and our 304H products, such as MTC according to EN 10204/3.1b, PMI test certificate, and 100% radiography test report. To further strengthen customer satisfaction, we offer third-party inspection certificates, which prove our fruit’s quality and reliability for various applications and durability.
Punit Fasteners is a leading manufacturer and supplier of high-quality fasteners in Delhi, India, with over 15 years of experience serving global industries.
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