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Leading Stainless Steel 321
Fasteners Manufacturer Supplier & Exporter in India
As a trusted manufacturer, supplier, stockist, and exporter, we maintain ready stock of all standard sizes and grades to ensure fast domestic supply and global delivery. Our SS 321 bolts, nuts, washers, screws, and stud bolts are offered at competitive prices without compromising on quality and durability.
About Stainless Steel 321 Fasteners
Stainless Steel 321 is a titanium-stabilized austenitic stainless steel grade containing chromium and nickel, along with the addition of titanium. The titanium stabilization prevents carbide precipitation during welding and high-temperature exposure, improving resistance to intergranular corrosion.
SS 321 fasteners are generally non-magnetic and provide excellent resistance to oxidation, corrosion, and high-temperature scaling. They perform reliably in reducing and moderately oxidizing environments, making them suitable for demanding industrial applications.
In addition to SS 321 fasteners, we are also a major supplier of Stainless Steel 310 Fasteners, providing complete stainless steel fastening solutions for high-temperature and corrosion-resistant environments.
Types of SS 321 Fasteners
Standard Specification SS 321
| Grade | SS 321 Fasteners |
|---|---|
| Specifications | ASTM A193 / ASME SA193, DIN, ASTM, BS, and all International Standards |
| Length | 3mm to 2000mm |
| Size | 3/6" to 2", M3 – M56, Custom Sizes |
| Form | Nuts, Bolts, Washers, Screw |
| Types | Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners, etc |
| Packing of Stainless-Steel Fasteners: | IN BULK: pallet, canton, carton / small boxes/pallet, or customer request |
Stainless Steel 321 Equivalent Grade
| Grade | UNS No | Old British (BS) | Old British (EN) | Euronorm No | Euronorm Name | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|---|---|
| 321 | S32100 | 321S31 | 58B, 58C | 1.4541 | X6CrNiTi18-10 | 2337 | SUS 321 |
Stainless Steel 321 Chemical Composition (%)
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
|---|---|---|---|---|---|---|---|---|---|
| 321 | 0.080 max | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.0 – 19.0 | – | 9.0 – 13.0 | – |
Stainless Steel 321 Mechanical Properties
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Rockwell B (HR B) max | Brinell (HB) max |
|---|---|---|---|---|---|
| 321 | 515 | 205 | 40 | 95 | 217 |
Industrial Applications
Our SS 321 Fasteners are engineered for critical high-performance environments:
- Oil & Gas Industries
- Petroleum Industries
- Nuclear Energy Sector
- Aerospace Industry
- Defence Industry
Packaging & Delivery Details
LC (Letter of Credit), TT (Telegraphic Transfer), Cheque, and others.
Packaged with extreme caution for safety. Options include pallets, cartons, or custom small boxes. (Packaging Charges Extra).
Mumbai or Kalamboli ports, Maharashtra, India.
18% GST (As applicable).
What Does 321 Stainless Steel Fasteners Mean?
Stainless Steel 321 fasteners are austenitic stainless steel fastening components manufactured with a composition of chromium, nickel, and titanium. The addition of titanium stabilizes the material, preventing carbide precipitation during welding and high-temperature exposure.
SS 321 fasteners offer excellent resistance to intergranular corrosion, oxidation, and high-temperature scaling. Due to their low carbon content and titanium stabilization, they are particularly suitable for corrosive and elevated-temperature environments.
These fasteners are widely used in industries such as petrochemical, oil & gas, heat exchangers, steam boilers, and chemical processing plants, where durability and corrosion resistance are critical.
If you require a specific size, thickness, or custom Stainless Steel 321 fastener, contact our sales team:
📞 +91 93245 81695
📧 sales@anankafasteners.com
Our experts will confirm stock availability and provide delivery schedules to your nearest port.