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Lina Fasteners is a reputable manufacturer and supplier located in Tunis, Tunisia, focusing on high-performance Stainless Steel 317/317L Fasteners. These fasteners are expertly engineered to provide outstanding corrosion resistance, making them reliable even in harsh and high-temperature conditions. By utilizing advanced manufacturing methods, rigorous quality control, and adhering to international standards, Lina Fasteners delivers a range of bolts, nuts, screws, studs, and washers that boast exceptional durability and precision. Catering to sectors like chemical processing, marine, oil & gas, and power generation, Lina Fasteners guarantees consistent quality, prompt delivery, and tailored fastening solutions to meet the demanding needs of projects around the globe.
Stainless Steel 317/317L Fasteners are austenitic alloys enriched with high levels of chromium and nickel, along with increased molybdenum content, which significantly boosts their resistance to pitting and crevice corrosion. The low-carbon 317L variant reduces carbide precipitation, enhancing both weldability and resistance to intergranular corrosion. These fasteners deliver impressive tensile strength, remarkable toughness, and high ductility across a broad temperature spectrum. They maintain their mechanical stability under stress, exhibit non-magnetic properties when annealed, and ensure dependable performance in challenging chemical and chloride-rich environments.
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo | N |
| SS 317 | 0.08 max. | 2.00 max. | 1.00 max. | 0.045 max. | 0.03 max. | 18.0 – 20.0 | 11.0 – 14.0 | 3.0 – 4.0 | – |
| SS 317L | 0.03 max. | 2.00 max. | 0.75 max. | 0.045 max. | 0.03 max. | 18.0 – 20.0 | 11.0 – 15.0 | 3.0 – 4.0 | 0.1 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 317 | 8.0 g/cm3 | 1454 °C | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
| SS 317L | 7.92 g/cm3 | 1450 °C | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
| Grade | Stainless Steel 317, 317L |
| Specifications | ASTM A193 / ASME SA193, DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M 02 to M 160, Custom Sizes |
| Form | Nuts, Bolts, Washers, Screw |
| Types | Bolts, Nuts, Washers, Anchor Fasteners, Stud Bolts, Eye Bolt, Stud, Threaded Rod, Cotter Pin, Socket Screw, Fine Fasteners & Spares, Foundation Fasteners etc |
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 317/317L Fasteners find extensive use in industries that demand exceptional corrosion resistance and mechanical reliability. Common applications include equipment for chemical and petrochemical processing, oil and gas facilities, marine structures, desalination plants, pulp and paper mills, and pharmaceutical manufacturing. Their outstanding resistance to acidic, chloride, and sulfur-rich environments makes them perfect for heat exchangers, pressure vessels, and various other critical applications.
We ensure top quality by subjecting all materials to stringent testing before delivery. Our comprehensive tests include Hardness, Chemical Analysis, PMI, Flattening, Micro and Macro Tests, Pitting Resistance, Flaring, and IGC Testing. We provide essential documentation such as invoices, packing lists, and a legalized Certificate of Origin. To guarantee complete client satisfaction, we also offer a third-party inspection certificate. This rigorous process underscores our commitment to delivering products that meet industry standards.
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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