Emilio Stainless, based in Manila, Philippines, is a trusted manufacturer and supplier of high-quality Stainless Steel 310H Nuts. Designed for high-temperature and demanding industrial applications, these nuts provide excellent corrosion resistance, oxidation resistance, and mechanical strength. The 310H grade, with higher carbon content than 310, delivers superior tensile strength and heat resistance, making them ideal for high-pressure and high-temperature piping systems. Emilio Stainless ensures precision manufacturing and strict quality control for each nut, providing secure, durable, and reliable fastening solutions for chemical, petrochemical, power generation, and industrial applications where performance and safety are critical.
Stainless Steel 310H Nuts are composed of 24–26% chromium, 19–22% nickel, and carbon content between 0.08–0.25%, along with trace amounts of manganese, silicon, and phosphorus. This austenitic stainless steel exhibits tensile strength of 620–760 MPa, yield strength around 275–310 MPa, and excellent ductility and toughness. The higher carbon content enhances high-temperature strength while maintaining corrosion and oxidation resistance. 310H nuts maintain dimensional stability, mechanical integrity, and reliability under high-temperature and high-pressure conditions, making them suitable for critical industrial and engineering applications.
| 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.
Emilio 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 Emilio Stainless include meeting and exceeding expectations and withstanding the test of time.
Stainless Steel 310H Nuts are widely used in chemical processing, petrochemical plants, power generation, and high-temperature industrial systems. They are ideal for securing flanges, valves, boilers, heat exchangers, and furnace pipelines exposed to extreme heat and corrosive conditions. These nuts provide strong, durable, and leak-proof fastening solutions for high-pressure and high-temperature applications. Emilio Stainless supplies 310H nuts in various sizes, threads, and finishes, offering versatile, high-performance, and reliable fastening solutions for industrial, structural, and mechanical applications that demand long-term durability, corrosion resistance, and superior performance.
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