Premium-grade stainless steel 321 nuts from Vinit Stainless, a reputable manufacturer and supplier with headquarters in Chennai, India, are made to last and resist corrosion in high-temperature settings. Because of its exceptional resistance to intergranular corrosion, SS 321 is an austenitic stainless steel stabilised by titanium that is ideal for thermal applications and welded structures. Following international standards like ASTM and DIN, Vinit Stainless produces 321 nuts in a range of sizes, threads, and finishes. These nuts are perfect for sectors that require strength and thermal stability, like power generation, chemical processing, aerospace, and food processing.
Stainless Steel 321 Nuts are made of 9–12% nickel, 17–19% chromium, and titanium to prevent carbide precipitation. At higher temperatures, the titanium addition enhances corrosion resistance and weldability. These nuts have a yield strength of about 205 MPa and a tensile strength of about 515–750 MPa. Additionally, SS 321 has outstanding creep resistance and maintains its mechanical integrity up to 870°C. For crucial fastening applications, the alloy provides a well-balanced combination of strength, formability, and high-temperature performance while remaining resilient even in sub-zero temperatures.
| Specifications Of | 321 Stainless Steel Nuts |
|---|---|
| Length Sizes | 3 millimeter to 200 millimeter |
| Head Type | 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 Bolts Phosphate Coated Bolts Zinc Coated Bolts Cadmium Coated Bolts Teflon Coated Bolts Xylon Coated Bolts |
| Type Of Nuts | Coupling Nuts, Nylon Insert Nuts, Flange Hex Nuts, Heavy Hex Nuts, Square Nuts |
|
Grade |
Mn |
N |
P |
C |
S |
Cr |
Mo |
Si |
Ni |
Other |
|
|
321 Stainless Steel Nuts |
minimum maximum |
2.00 |
0.10 |
0.045 |
– 0.08 |
0.030 |
17.0 19.0 |
– |
0.75 |
9.0 12.0 |
Ti=5(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 |
||||
|
321 Stainless Steel Nuts |
515 |
205 |
40 |
95 |
217 |
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An ideal corrosion resistant material for high humidity environments. Stainless steel 321 nuts are available in sizes from M6 to M36 and are used in aerospace and chemical applications, providing excellent oxidation resistance and durability
The stainless steel 321 coupling nuts are designed to hold threaded rods together under extreme conditions. Sizes range from M6 to M36, making it suitable for high-temperature aerospace and medical applications where reliability is critical.
The stainless steel 321 nylon insert nuts have a nylon insert for a secure fastening. Available in sizes from M6 to M24, they offer stability and resistance to high temperatures, and are ideal for use in industrial appliances and air filters.
Stainless steel 321 flange hex nuts for enhanced weight distribution with integrated flanges. Sizes range from M6 to M24, making it perfect for hot temperature environments, such as chemical processing and aerospace applications.
The heavy duty stainless steel 321 hex nuts are designed for high pressure, high temperature applications. Available in sizes from M6 to M36, they are used in applications requiring high strength and thermal stability, including aerospace and chemical applications
Stainless steel 321 square nuts provide large surface area for efficient torque application. Sizes range from M6 to M24, making them suitable for hot and humid environments, such as in chemical processing and industrial machinery.
Stainless steel 321 nuts are frequently utilised in corrosive and high-temperature settings where robust, dependable fastening elements are needed. These nuts are ideal for applications in exhaust systems, heat exchangers, boilers, and pressure vessels. Because of their resistance to oxidation and ability to retain structural integrity during thermal cycling, SS 321 nuts are used in a variety of industries, including thermal processing, petrochemical, marine, and aerospace. Their application is particularly beneficial in welded assemblies where resistance to intergranular corrosion is crucial. Additionally, because of their durability, hygienic qualities, and resistance to chemical exposure, SS 321 nuts are appropriate for use in pharmaceutical and food processing equipment.
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