Emilio Stainless, located in Manila, Philippines, is a reliable manufacturer and supplier of top-notch Stainless Steel 321 Nuts. Designed for high-temperature and industrial uses, these nuts boast outstanding corrosion resistance, oxidation resistance, and mechanical strength. The 321 grade, which is stabilized with titanium, provides excellent protection against intergranular corrosion and performs exceptionally well at elevated temperatures. At Emilio Stainless, advanced manufacturing techniques and rigorous quality control ensure that these nuts are made with precise dimensions, consistent quality, and long-lasting durability. They offer secure, dependable, and leak-proof fastening solutions for boilers, heat exchangers, piping systems, and other essential industrial applications.
Stainless Steel 321 Nuts are made up of 17–19% chromium, 9–12% nickel, 0.04–0.08% carbon, and titanium for stabilization, along with trace amounts of manganese, silicon, and phosphorus. This austenitic stainless steel showcases a tensile strength of 515–690 MPa and a yield strength of about 205–310 MPa, along with excellent ductility and toughness. The titanium stabilization helps prevent carbide precipitation, boosting resistance to intergranular corrosion at high temperatures. These nuts are mechanically strong, heat-resistant, and perfect for high-pressure, high-temperature, chemical, and industrial applications that demand long-lasting reliability and durable fastening performance.
| 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.
Emilio 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 chemical processing plants, petrochemical industries, power generation, marine applications, and various high-temperature industrial systems. They are perfect for securing flanges, valves, boilers, heat exchangers, and pipelines that are exposed to high temperatures and corrosive environments. The titanium-stabilized 321 grade ensures resistance to intergranular corrosion, delivering strong, durable, and leak-proof fastening for critical piping, structural, and mechanical systems.
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