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Lina Fasteners stands out as a top manufacturer and supplier located in Tunis, Tunisia, specializing in high-quality Stainless Steel 321 and 321H Fasteners designed for tough industrial and high-temperature environments. With state-of-the-art manufacturing facilities and rigorous quality control measures, the company guarantees that its fasteners adhere to international standards and meet specific customer needs. Lina Fasteners caters to various sectors, including petrochemical, chemical processing, power generation, marine, and heavy engineering. Renowned for their exceptional resistance to corrosion, oxidation, and intergranular attack at high temperatures, the Stainless Steel 321/321H Fasteners ensure dependable performance and longevity. The company’s dedication to quality, precision, and timely delivery has established it as a reliable global provider of fastening solutions.
Stainless Steel 321 and 321H Fasteners are crafted from an austenitic stainless steel alloy that includes chromium, nickel, and titanium. The addition of titanium helps prevent carbide precipitation, boosting resistance to intergranular corrosion during high-temperature use. The 321H grade features a higher carbon content, which enhances its tensile strength and creep resistance in elevated temperatures. These fasteners are mechanically robust, offering good tensile and yield strength, excellent toughness, and stability under thermal and mechanical stress. Their ability to resist oxidation and thermal fatigue makes them perfect for long-term applications in challenging environments.
| Standard | ASTM A193,A194 / ASME SA193,SA194 |
| Standard | DIN, ASTM, BS and all International Standards |
| Length | 3 mm to 200 mm |
| Size | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Grade | C | Mn | Si | P | S | Cr | N | Ni | Ti |
| SS 321H | 0.04 – 0.10 | 2.0 max | 1.0 max | 0.045 max | 0.030 max | 17.00 – 19.00 | 0.10 max | 9.00 – 12.00 | 4(C+N) – 0.70 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 35 % |
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 fasteners are used at high temperatures where strength and corrosion resistance are important. They are ideal for aerospace, automotive exhaust systems and high-temperature petrochemical equipment. These packaging materials are also suitable for chemical industries due to their resistance to sulfuric and phosphoric acids. Their robust mechanical properties enable them to be reliable in environments with high temperatures and corrosive conditions, providing long service life and reliability in complex industrial applications
Stainless Steel 321 and 321H Fasteners find extensive use in industries that demand reliable performance in high-temperature and corrosive settings. They are commonly utilized in boilers, heat exchangers, petrochemical and chemical processing facilities, power generation systems, and marine applications. These fasteners are particularly well-suited for flanged joints, pressure vessels, and other critical components where durability and strength are essential. Their impressive resistance to harsh conditions ensures they remain a preferred choice for engineers and manufacturers looking for dependable fastening solutions.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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