Walid Stainless, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-temperature stainless steel fastening solutions for demanding industrial environments. Their Stainless Steel 310H Nuts are specially designed for applications requiring enhanced strength and stability at elevated temperatures. With a higher carbon content than standard 310 grades, these nuts provide improved creep resistance and mechanical performance under heat. Manufactured using precision-controlled processes and strict quality inspections, Walid Stainless ensures accurate threading, durability, and long service life. Customers rely on Stainless Steel 310H Nuts for secure fastening and dependable performance in extreme operating conditions.
Stainless Steel 310H Nuts are produced from an austenitic stainless steel alloy containing approximately 24–26% chromium and 19–22% nickel, with higher carbon content for enhanced high-temperature strength. This composition provides excellent oxidation resistance and improved creep performance at elevated temperatures. These nuts typically exhibit mechanical strength consistent with 310H-grade fasteners and hardness around 170–210 HB. The austenitic structure ensures good toughness, corrosion resistance, and dimensional stability in continuous high-temperature service.
| Specifications | DIN, ISO ,JIS ,GB, IS, BS, ASTM |
| Standard | ASTM / ASME SB 160 / 164 / 425 / 166 / 446 / 574 / 472 |
| Size | M0.2 to M33 | 3/6″ to 2″ | Custom Sizes |
| Length | 3 mm to 200 mm | Custom Sizes |
| Dimensions | DIN 931, 933, 934, 7991, 976, 125, ASME B18.2.1, 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 |
| SS 310H | 0.10 max | 2.00 max | 1.00 max | 0.045 max | 0.030 max | 24.0 – 26.0 | – | 19.0 – 21.0 | – |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness Rockwell B (HR B) max | Hardness Brinell (HB) max |
| 310H | 515 | 205 | 40 | 217 | 92 |
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A corrosion-resistant product, Stainless Steel 310H nuts are available in sizes from M6 to M64. They offer excellent heat and oxidation resistance, making them ideal for high-temperature applications in industrial furnaces and chemical processing.
A corrosion-resistant product, Stainless Steel 310H coupling nuts, used to join two male threads, come in sizes from M6 to M36. Their high-temperature resistance and durability make them suitable for demanding industrial and aerospace applications.
A corrosion-resistant product, Stainless Steel 310H nylon insert nuts, or lock nuts, are available in sizes from M3 to M36. The nylon insert prevents loosening under vibration, providing secure fastening in high-temperature environments.
A corrosion-resistant product, Stainless Steel 310H flange hex nuts feature an integrated flange and are available in sizes from M5 to M20. They distribute load evenly and offer stability in high-temperature and corrosive environments.
A corrosion-resistant product, Stainless Steel 310H heavy hex nuts come in sizes from M10 to M48. Their thicker design provides increased strength and heat resistance, ideal for heavy-duty and high-temperature applications.
A corrosion-resistant product, Stainless Steel 310H square nuts offer a larger surface area for contact and come in sizes from M6 to M30. They are suitable for high-temperature and heavy clamping applications where stability is essential.
Walid Stainless is dedicated to excellence and proudly offers a wide range of industrial components, including Stainless Steel 310H Nuts, specifically designed for high-temperature applications. Our nuts are renowned for their excellent strength, resistance to oxidation, and durability and are best suited for chemical processing, oil and gas, and power generation industries. We ensure premium quality products meeting global standards and make them available to the customers so that they receive reliable, long-lasting, and cost-effective solutions for their fastening needs. Product standards at Walid Stainless include meeting and exceeding expectations and withstanding the test of time.
Stainless Steel 310H Nuts are widely used in industries operating under extreme heat and corrosive conditions. Common applications include furnace assemblies, heat exchangers, petrochemical processing units, power generation systems, boilers, and thermal treatment equipment. Their ability to retain strength and resist oxidation at elevated temperatures makes them ideal for critical bolted connections. Engineers and maintenance teams rely on 310H Nuts for long service life, safety, and reliable performance. Walid Stainless ensures each nut meets stringent quality standards, supporting dependable operation in demanding industrial environments.
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