Weston Stainless, Midland, UK, is a renowned supplier of top–grade stainless steel products, providing dependable and long-lasting solutions for industrial use. Among its top-grade fasteners, Stainless Steel 321H Nuts are intended for high-temperature and corrosion-resistant applications. These nuts are of Grade 321H, a high-carbon version of 321 stainless steel, which provides greater strength at higher temperatures. Being offered in different forms like hex nuts, lock nuts, flange nuts, and coupling nuts, they are made from austenitic stainless steel with superior resistance to oxidation, stress corrosion, and creep deformation and are best suited for extreme industrial conditions.
Stainless Steel 321H Nuts contain the chemical composition of Chromium (17-19%), Nickel (9-12%), and increased Carbon content (0.04-0.10%) for enhanced strength. They also contain Titanium (≥5xC) to resist intergranular corrosion. The nuts have tensile strength of 515 MPa, yield strength of 205 MPa, and elongation of 40%, giving them outstanding mechanical properties. Their density of 7.9 g/cm³ and melting point of 1400-1425°C give them superior thermal stability, and thus they can be used in extreme temperature conditions.
| Specifications Of | 321H Stainless Steel Nuts |
|---|---|
| Length Sizes | 3 millimeter to 200 millimeter |
| Head Type | Hex, Square |
| Head Style | Hex, Square |
| Standard | ASME B18.2.2 ASME B16.5 ASME B18.5 ANSI B 18.2.4 2M DIN = DIN 931, DIN 933, DIN 934, DIN 970 ISO = ISO 4033, ISO 4032, JIS UTS = UNF, NPTF, NPT, UNC, UNEF, UNS |
| Surface Coating | Hot Dipped Galvanizing Coated Nuts Phosphate Coated Nuts Zinc Coated Nuts Cadmium Coated Nuts Teflon Coated Nuts Xylon Coated Nuts |
| Type Of Nuts | Coupling Nuts, Serrated Flange Locknuts, Square Nuts, Heavy Hex Nuts, Flange Nuts |
Grade | Mn | N | P | C | S | Cr | Mo | Si | Ni | Other | |
Stainless Steel 321H Nuts | minimum maximum | 2.00 | – | 0.045 | 0.04 0.10 | 0.030 | 17.0 19.0 | – | 0.75 | 9.0 12.0 | Ti=4(C+N) 0.70 |
Grade | Tensile Strength (MPa) minimum | Yield Strength 0.2% Proof (MPa) minimum | Elongation (% in 50mm) minimum | Hardness | |
Rockwell B (HR B) maximum | Brinell (HB) maximum | ||||
321H Stainless Steel Fasteners | 515 | 205 | 40 | 95 | 217 |
Contact us to get a quick quote for your requirement.
High-temperature applications. Stainless Steel 321H Nuts are available in sizes from M6 to M36, designed for use in aerospace and chemical processing environments, offering excellent heat and oxidation resistance.
High-temperature settings. Sizes range from M6 to M36, suitable for applications in chemical processing and aerospace where heat resistance and durability are essential.
A nylon insert to prevent loosening under high temperatures. Available in sizes from M6 to M24, they are ideal for applications in industrial machinery and exhaust systems where stability and heat resistance are crucial.
Enhanced load distribution with their integrated flanges. Sizes range from M6 to M24, making them suitable for high-temperature environments like chemical processing and aerospace, offering both strength and corrosion resistance.
Designed for high-stress and high-temperature applications. Available in sizes from M6 to M36, they are used in industrial machinery and aerospace components, providing exceptional strength and heat resistance.
A large surface area for effective torque application. Sizes range from M6 to M24, suitable for high-temperature and industrial applications, ensuring durability and stability in demanding environments.
Stainless Steel 321H Nuts are extensively applied in high-temperature exhaust systems, heat exchangers, boilers, and pressure vessels because of their higher strength and resistance to oxidation. They are used in petrochemical, aerospace, power generation, and chemical processing industries, where exposure to severe heat and corrosive conditions is a concern. Their higher creep resistance and structural stability make them suitable for steam piping, refinery equipment, and superheater tubes, providing safe fastening in thermal cycling applications.
Weston Stainless delivers Stainless Steel 321H Nuts with officially certified test reports that confirm chemical composition, mechanical properties, and compliance with global standards. Nuts are well-protected and packed in wood crates, plastic containers, or bespoke packing to ensure safe delivery. They are offered in an assortment of sizes, thread styles, and coating, and dispatched with complete traceability. Weston Stainless provides prompt domestic and foreign shipments with strict quality control processes to deliver high-performance fastening solutions for vital industrial applications.
©2024 Weston Stainless All Rights Reserved.
