Known for providing premium fastening solutions for demanding industrial applications, Harshita Stainless is a top manufacturer and supplier of stainless steel 310S fasteners in Delhi, India. These fasteners are produced with accuracy and high standards of quality, and they are made to resist harsh temperatures and corrosive conditions. Power generation, furnace manufacturing, and petrochemicals are just a few of the many industries that Harshita Stainless serves. The company guarantees dependable product availability and prompt delivery throughout India by emphasising performance, durability, and customer satisfaction. For crucial structural and mechanical connections, their 310S fasteners provide unparalleled resistance to heat, scaling, and oxidation.
The high-temperature austenitic alloy used to make stainless steel 310S fasteners has a low carbon content (≤0.08%) to enhance weldability and resistance to sensitisation, and it contains 24–26% chromium and 19–22% nickel. Up to 1100°C (2012°F), these fasteners retain exceptional strength and resistance to oxidation. Tensile strength of approximately 515 MPa, yield strength of 205 MPa, and elongation of approximately 40% are examples of mechanical properties. They are perfect for high-stress and thermal industrial settings because of their mechanical dependability, corrosion resistance, and heat resistance.
| 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 |
| 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 |
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Stainless Steel 304H Nuts Designed for high-stress environments, these nuts provide excellent corrosion resistance and durability. Available in sizes ranging from M6 to M36, they are ideal for chemical, petrochemical, and power generation applications.
Stainless Steel 304H Coupling Nuts Ideal for joining threaded rods, these coupling nuts offer high strength and temperature resistance. Available in sizes from M6 to M36, they are suitable for industrial applications such as piping systems and machinery assemblies.
These nuts feature a nylon insert for secure fastening and vibration resistance. Available in sizes from M6 to M24, they ensure a tight fit and prevent loosening, making them perfect for machinery and automotive applications.
Featuring integrated flanges for extra support, these SS 304H nuts provide enhanced load distribution and stability. Available in sizes from M6 to M24, they are ideal for use in heavy-duty equipment and construction projects.
Offering superior strength for heavy-duty applications, these SS 304H nuts are designed for high-pressure and high-temperature environments. Available in sizes from M6 to M36, they are perfect for boilers and heat exchangers.
These square nuts provide a large surface area for effective torque application. Available in sizes from M6 to M24, they are ideal for secure fastening in tight spaces within industrial machinery and structural applications.
Harshita Stainless is committed to providing high-quality Stainless Steel 304H Nuts with consistent performance through a wide range of tests. These include hardness testing, spectro analysis, PMI, and flaring tests. We also do micro and macro tests, pitting resistance tests, and IGC tests to ensure the excellent quality of every product we deliver. Along with the above-mentioned stringent testing processes, we are giving full documentation like commercial invoices and detailed packing lists with net and gross weights, box numbers, and labels. Moreover, our legalized or attested Certificate of Origin and Third-Party Inspection Certificates make sure that there is total assurance of our commitment towards delivering superlative products and a guaranty of unforgettable customer satisfaction.
Stainless steel 310S fasteners are widely used in corrosive and high-temperature settings where durability and structural integrity are essential. Incinerators, heat exchangers, furnaces, and thermal processing machinery are examples of common applications. Additionally, petrochemical plants, power plants, marine structures, and industrial exhaust systems all make extensive use of these fasteners. They are appropriate for extreme thermal exposure and cyclic heating conditions due to their exceptional resistance to oxidation and scaling. They are ideal for welded assemblies because of their low carbon content, which also guarantees a lower chance of intergranular corrosion following welding. For long-lasting, performance-driven fastening solutions, 310S fasteners are the best option.
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