Home > Stainless Steel 321 / 321H Bolts
Request For Our Latest Prices On Stainless Steel 321 / 321H Bolts in Hamilton, New Zealand!
Aria Fasteners, located in Hamilton, New Zealand, has built a solid reputation as a reliable manufacturer and supplier of top-notch industrial fastening solutions. Their Stainless Steel 321 / 321H Bolts are specifically designed to offer outstanding corrosion resistance, impressive strength at high temperatures, and long-lasting durability, making them perfect for tough industrial environments. With a commitment to strict quality control, these bolts guarantee secure and dependable fastening in critical assemblies. Aria Fasteners caters to various industries, including petrochemical, chemical processing, power generation, and thermal processing, providing components that consistently perform well even in extreme temperatures and harsh conditions.
The Stainless Steel 321 / 321H Bolts are crafted from a titanium-stabilized austenitic stainless steel alloy, which blends chromium, nickel, and titanium to prevent sensitization and intergranular corrosion during the welding process. The 321H grade, featuring a higher carbon content, enhances strength at elevated temperatures while still offering excellent corrosion resistance. These bolts boast superior tensile strength, thermal stability, and creep resistance, with precision threading that ensures a proper fit with compatible nuts and washers, delivering reliable clamping force in both static and dynamic applications.
| 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 | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N | |
| 347 | min. | – | – | – | – | – | 17.0 | 2.00 | 9.0 | – |
| max. | 0.08 | 2.0 | 1.00 | 0.045 | 0.030 | 20.0 | 3.00 | 13.0 | – | |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 347 | 515 | 205 | 40 | 95 | 201 |
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 bolts are used in applications requiring high thermal resistance and strong corrosion protection. They are ideal for aerospace, automotive exhaust systems and high-temperature gasoline engines. These bolts are also used in medicine because of their resistance to sulfuric and phosphoric acids. Their durable characteristics ensure reliable performance in high-pressure environments, making them suitable for a wide range of industrial applications where strength and durability are important
These bolts find their place in industries that demand heat-resistant, corrosion-resistant, and high-strength fastening solutions. They are particularly well-suited for boilers, heat exchangers, furnace components, flanged joints, and industrial machinery that operate under high temperatures. Additionally, Stainless Steel 321 / 321H Bolts are commonly used in chemical plants, power generation facilities, and offshore installations where secure and long-lasting fastening is essential. Their unique combination of thermal resistance, mechanical strength, and corrosion protection makes them a trustworthy choice for even the most demanding industrial applications.
Aria Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hamilton, New Zealand, with over 8 years of experience serving global industries.
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