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Puri Fasteners stands out as a top-notch manufacturer and supplier of high-performance Stainless Steel 317/317L Bolts right in Chennai. They provide reliable fastening solutions for industries that require exceptional corrosion resistance and durability. These bolts are made from molybdenum-rich stainless steel grades, specifically designed to endure harsh chemical environments, resist chloride attacks, and handle high temperatures. Thanks to their advanced manufacturing technology and rigorous quality standards, Puri Fasteners guarantees precision, strength, and a long service life for every product. Their 317/317L bolts are a popular choice in chemical processing, petrochemical units, marine settings, and heavy engineering applications, ensuring dependable performance even in tough industrial conditions.
What makes Stainless Steel 317/317L Bolts special is their higher levels of chromium, nickel, and molybdenum, which provide better corrosion resistance than standard stainless steels. The low-carbon 317L grade not only improves weldability but also reduces carbide precipitation during fabrication. These bolts boast high tensile strength, excellent ductility, and robust resistance to pitting, crevice corrosion, and chemical attacks. They maintain their mechanical stability at elevated temperatures and perform reliably in aggressive acidic environments, such as sulfuric, acetic, and phosphoric acids. Their unique composition guarantees durability and long-term structural integrity, even under constant stress.
| 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 are a go-to choice in industries that demand top-notch corrosion resistance and mechanical performance. They’re particularly well-suited for chemical processing plants, especially in situations where equipment is dealing with corrosive acids, solvents, and solutions rich in chlorides. You’ll also find these bolts making their mark in marine and offshore settings, desalination plants, and brine-handling systems, thanks to their outstanding resistance to chloride corrosion. In sectors like petrochemical, pulp and paper, textiles, and food processing, they offer impressive durability even in tough conditions. Plus, their reliability at high temperatures makes them perfect for heat exchangers, boilers, pressure vessels, and other heavy-duty industrial applications.
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.
Puri Fasteners is a leading manufacturer and supplier of high-quality fasteners in Chennai, India, with over 8 years of experience serving global industries.
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