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Lina Fasteners is a reliable manufacturer and supplier located in Tunis, Tunisia, dedicated to providing top-notch fastening solutions for essential industrial applications. The company focuses on ASTM A182 F53 Fasteners, crafted from super duplex stainless steel to ensure remarkable strength and resistance to corrosion. With state-of-the-art manufacturing facilities, a talented technical team, and rigorous quality control measures, Lina Fasteners guarantees adherence to international standards. Catering to sectors like oil and gas, petrochemical, power generation, marine, and chemical processing, the company delivers dependable and precisely engineered fasteners. Lina Fasteners is devoted to maintaining consistent quality, competitive pricing, tailored solutions, and prompt delivery to fulfill the demanding needs of projects in both regional and global markets.
ASTM A182 F53 Fasteners are crafted from super duplex stainless steel, featuring a well-balanced microstructure of austenite and ferrite. The typical composition includes around 24–26% chromium, 6–8% nickel, 3–4% molybdenum, and added nitrogen, which together provide excellent resistance to pitting, crevice corrosion, and stress corrosion cracking. These fasteners boast very high tensile and yield strength, outstanding fatigue resistance, and good toughness. They maintain mechanical stability even under high pressure and moderate temperatures, ensuring exceptional load-bearing capacity, durability, and a long service life in aggressive, chloride-rich environments.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304 | 0.08 max | 2 max | 0.75 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 11 | – |
| 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 % |
| 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 |
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 304 fasteners are used in different sectors because of their ability to resist corrosion and also their high endurance. Some of the uses include construction, where they are used in structural parts and roofing; automotive where they are used to fasten engine and body parts; and marine since they are not affected by salt water. They are also used in food processing equipment, chemical industries and pharmaceutical industries where cleanliness and resistance to chemical solutions is important. They are suitable to be used both in indoors and outdoors due to their flexibility.
ASTM A182 F53 Fasteners are commonly utilized in highly corrosive and high-pressure settings where strength and reliability are paramount. Typical applications include equipment for oil and gas exploration and production, offshore platforms, subsea systems, and pipelines. They are extensively employed in petrochemical plants, chemical processing units, heat exchangers, and other critical infrastructure where durability and performance are essential.
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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