Stainless steel 321 fasteners are a top choice across industries thanks to their impressive durability and strength. Known for their excellent corrosion resistance and ability to withstand high temperatures, they perform well in extreme climates and environments frequently exposed to corrosive substances like water. SS 321H Fasteners are widely used in applications such as aircraft parts, exhaust systems, gas turbines, and medical instruments, highlighting their versatility and reliability.
These fasteners are available in various types, including bolts, nuts, screws, washers, pins, and rods, each designed for specific uses. Bolts provide secure connections, while washers add extra support and stability when paired with bolts or nuts. SS 321 Fasteners also come in forms like Stainless Steel 321 Washers and Stainless Steel 321H Stud Bolts, meeting a range of requirements. Fasteners excel in applications needing precise fits, while rods are ideal for structural joints requiring uniformity and strength.
Standard SS 321 Fasteners specifications as per Fasteners manufacturers.
| Material | Stainless Steel 321 |
| Specification | IS/BS/ASTM |
| Standards | ASTM / ASME – A/ SA 193 |
| Size | 3 mm to 200 mm |
| Length | M02 to M30 |
Each SS 321 Fasteners have unique design each of them are used in specific applications. Some of them are mentioned below.
Note that this chart includes only some of the most common sizes of SS 321 Bolt. There are many other sizes available as well, and some applications may require custom sizes or special configurations.
| SS 321 Fasteners | Element (% By Mass) |
|---|---|
| Chromium (Cr) | 17–19 |
| Nickel (Ni) | 9–12 |
| Manganese (Mn) | 2% max |
| Silicon (Si) | 1.0% max |
| Carbon (C) | 0.08% max |
| Phosphorus (P) | 0.045% max |
| Sulfur (S) | 0.03% max |
| Ti | 5(C+N) – 0.70 max |
| Density | 7.9 g/cm3 |
| Melting Point | 1402 °C (2555 °F) |
| Tensile Strength | Psi – 75000 , MPa – 515 |
| Yield Strength (0.2%Offset) | Psi – 30000 , MPa – 205 |
| Elongation | 40% |
We specialize in manufacturing high-quality fasteners that cater to diverse industries, including oil & gas, petrochemical, marine, power generation, aerospace, and construction.
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