Mbemba Stainless is a reputable manufacturer and supplier of **Stainless Steel 321 Nuts** based in Kinshasa, Congo. They offer top-notch fastening solutions that are built for strength, corrosion resistance, and high-temperature performance. These nuts are specially treated with titanium to guard against intergranular corrosion, ensuring they remain durable and reliable, even in welded or heat-exposed setups. Crafted with precision and high-quality materials, Stainless Steel 321 Nuts adhere to international standards for both quality and performance. Mbemba Stainless caters to various industries, including petrochemical, aerospace, power generation, and marine, providing nuts that promise long-lasting service, exceptional mechanical stability, and trustworthy fastening in challenging industrial and engineering environments.
**Stainless Steel 321 Nuts** are made up of chromium (17–19%), nickel (9–13%), titanium (as a stabilizer), carbon (≤0.08%), along with manganese, silicon, phosphorus, and sulfur. The inclusion of titanium helps prevent carbide precipitation, offering remarkable resistance to intergranular corrosion. These austenitic stainless steel nuts boast a tensile strength of about 515–690 MPa and a yield strength of around 205–275 MPa, along with good elongation, toughness, and creep resistance. Their ability to withstand high temperatures and resist oxidation makes them perfect for critical fastening tasks in tough and corrosive settings.
| 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 |
Contact us to get a quick quote for your requirement.
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.
Mbemba Stainless provides nuts made of stainless steel 321, which assures consistent performance. The materials undergo an extensive series of tests, including hardness testing, spectro analysis, PMI, and flaring tests. We further undertake micro and macro tests, pitting resistance, and IGC tests for superior quality in every material we deliver. Apart from these strict testing procedures, we give full documentation which includes commercial invoices, packing lists containing the net and gross weight, box number, and labels. The legalized or attested Certificate of Origin along with Third-Party Inspection Certificates assures full assurance about our commitment towards superior products and unmatched customer satisfaction.
**Stainless Steel 321 Nuts** find extensive use in **petrochemical plants, power generation, marine engineering, aerospace, and chemical processing industries**. Their strength at high temperatures and resistance to corrosion make them ideal for applications like boilers, heat exchangers, exhaust systems, turbines, and pressure vessels. They are also utilized in piping assemblies and equipment that experience frequent thermal cycling or welding. Stainless Steel 321 Nuts ensure secure fastening, long-term durability, and structural integrity, providing reliable performance in industrial, marine, and high-temperature scenarios where safety and longevity are paramount.
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