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Hazlewood Fasteners, based in Canberra, Australia, stands out as a top manufacturer and supplier of high-quality Stainless Steel 321 / 321H Washers. These washers are specifically crafted to deliver outstanding strength and stability, especially in high-temperature and corrosive settings. Thanks to their titanium stabilization, they excel at resisting intergranular corrosion and oxidation, even when exposed to prolonged heat. Produced with cutting-edge techniques and rigorous quality checks, SS 321 / 321H Washers guarantee precise dimensions, durability, and consistency. They find their place in various industries, including chemical, marine, aerospace, and power generation, providing dependable fastening support for heavy-duty mechanical and structural tasks in extreme conditions.
Stainless Steel 321 / 321H Washers are made up of 17–19% chromium, 9–12% nickel, and titanium, which helps stabilize the alloy against carbide precipitation during welding and heat exposure. The 321H version features a higher carbon content (0.04–0.10%), boosting its creep strength and high-temperature mechanical stability. These washers showcase a tensile strength ranging from 515–700 MPa and a yield strength of about 205 MPa, while maintaining oxidation resistance up to 870°C. Their unique blend of ductility, toughness, and corrosion resistance ensures they perform exceptionally well in environments with continuous thermal cycling and chemical exposure.
| Specifications | ASTM A 193 ASME SA 193 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | Wedge Lock Washers, Square Washer, Spring Lock Washer, Self Locking Washer, Sealing Washer, Plain Flat Washer, Ogee Washer, Industrial Washer, Hex Washer, Finishing Washer, Fender Washer, Conical Washer, Countersunk Washer, Square Beveled Washer, Curved Wave Washer, External Tooth Lock Washer, Internal Tooth Lock Washers, Internal Tab Washers, lock washer Fastener, Wedge Lock Washers, Tab Washer, Structural Washers. |
| Grade | AISI | Stainless Steel Bolts Chemical Composition (% maxima unless stated) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| C | Si | Mn | P | S | Cr | Mo | Ni | Cu | ||||||
| A1 | SS 202 | 0.12 | 1.0 | 6.5 | 0.20 | 0.15-0.35 | 16,0 – 19,0 | 0.7 | 5,0 – 10,0 | 1.75-2.25 | ||||
| A2 | SS 304 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 15,0 – 20,0 | 0.0 | 8,0 – 19,0 | 4.0 | ||||
| A3 | SS 321 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 17,0 – 19,0 | 0.0 | 9,0 – 12,0 | 1.0 | ||||
| A4 | SS 316 | 0.08 | 1.0 | 2.0 | 0.05 | 0.03 | 16,0 – 18,5 | 2,0 – 3,0 | 10,0 – 15,0 | 4.0 | ||||
| C1 | SS 410 | 0.09-0.15 | 1.0 | 1.0 | 0.05 | 0.03 | 11,5 – 14,0 | – | 1 | – | ||||
| C3 | SS 431 | 0.17-0.25 | 1.0 | 1.0 | 0.04 | 0.03 | 16,0 – 18,0 | – | 1,5 – 2,5 | – | ||||
| C4 | SS 416 | 0.08-0.15 | 1.0 | 1.5 | 0.06 | 0.15-0.35 | 12,0 – 14,0 | 0.6 | 1 | – | ||||
| F1 | SS 430 | 0.12 | 1.0 | 1.0 | 0.04 | 0.03 | 15,0 – 18,0 | 0.0 | 1 | – | ||||
| Stainless Steel Bolts | Class | Tensile Stress Rm MPa (N/mm2) minimum | Yield Strength Rp 0.2 Mpa (N/mm2) minimum | AL Minimum Elongation | Diameter |
|---|---|---|---|---|---|
| Stainless Steel Bolts | 70 | 700 | 450 | 0.4d | =<M20 |
To satisfy our clients needs by providing high quality products at competitive price as per the schedule and to maintain long term relationship with our clients.
Stainless Steel 321 / 321H Washers are widely utilized in refineries, exhaust systems, heat exchangers, boilers, turbines, and pressure vessels that function under high temperatures and corrosive conditions. Their titanium stabilization makes them perfect for welded assemblies and environments with thermal cycling, significantly reducing the risk of intergranular corrosion. These washers are also essential in chemical processing, marine, power generation, aerospace, and food industries, where durability and oxidation resistance are paramount. They provide secure load-bearing capabilities, ensuring reliability in demanding applications.
At Hazlewood Fasteners, we prioritize the safety and quality of our Stainless Steel 321/321H washers when fastening them. Each washer is thoroughly inspected and wrapped in protective packaging to prevent any damage. They are then placed in clearly labeled sturdy boxes with detailed product specifications and quantities. Our packaging is designed to protect the environment and physical impact, ensuring that your high-performance washer arrives in perfect condition and ready for immediate use quite.
Hazlewood Fasteners is a leading manufacturer and supplier of high-quality fasteners in Canberra, Australia, with over 8 years of experience serving global industries.
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