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Lina Fasteners, based in Tunis, Tunisia, is a reliable manufacturer and supplier of top-notch **Stainless Steel 317/317L Bolts** designed for high-performance industrial use. With cutting-edge manufacturing processes, rigorous quality control, and precise engineering, the company produces bolts celebrated for their exceptional corrosion resistance, durability, and mechanical reliability. Catering to sectors like chemical processing, marine, petrochemical, pharmaceuticals, and pulp & paper, Lina Fasteners guarantees that every product adheres to international standards. Their dedication to innovation, customer satisfaction, and prompt delivery makes them a trustworthy partner for robust stainless steel fastening solutions that excel in harsh and corrosive environments.
Stainless Steel 317/317L Bolts are crafted from a high-alloy austenitic stainless steel that boasts elevated levels of chromium, nickel, and molybdenum, enhancing their corrosion resistance. The Grade 317L variant has a lower carbon content, which improves weldability and minimizes carbide precipitation. These bolts are known for their outstanding resistance to pitting, crevice corrosion, and chemical attacks, particularly in acidic settings. On the mechanical side, they offer high tensile strength, good toughness, and stability at elevated temperatures. Their austenitic structure guarantees durability, non-magnetic properties, and long-lasting performance in demanding industrial environments that require superior corrosion resistance and strength.
| 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 |
| 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 | ||||
| 317 | 620 MPa | 275 MPa | 45% | 85 | 193 |
| 317L | 595 MPa | 260 MPa | 55% | 85 | 200 |
Material | Specification | Standards | Size | Length |
Stainless Steel 317 / 317L Bolts
| IS BS ASTM | ASTM / ASME – A/ SA 193 | 3 mm | M02 to M33 |
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 Bolts find extensive use in industries where enhanced corrosion resistance and mechanical reliability are crucial. In chemical processing, they are perfect for equipment dealing with sulfuric, acetic, and citric acids. Petrochemical and refinery plants employ them in heat exchangers, reactors, and piping systems that are exposed to aggressive chemicals. The marine and offshore sectors depend on these bolts for their resilience in challenging environments.
We provide comprehensive documentation with our premium Stainless Steel 317/317L Bolts to ensure a flawless customer experience. Our package includes a commercial invoice, packing list, heat treatment chart, fumigation certificate, quality assurance plan, and NABL-approved lab test report. Clients can trust in the authenticity and quality of our products, supported by various test certificates such as MTC per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate. These documents reflect our commitment to excellence in both service and product quality.
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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