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Puri Fasteners stands out as a top-notch manufacturer and supplier of high-quality Stainless Steel 317/317L Fasteners in Chennai. They provide dependable solutions for industries that need exceptional corrosion resistance and strength. Crafted from molybdenum-bearing stainless steels, these fasteners are designed to resist chemical attacks, particularly in harsh acidic and chloride-rich environments. Renowned for their durability, weldability, and long lifespan, SS 317/317L fasteners are perfect for tough industrial settings. Puri Fasteners is committed to precision manufacturing, following international standards, and ensuring timely delivery, making them a go-to choice for chemical processing, petrochemical plants, marine applications, and high-temperature industrial systems.
Stainless Steel 317/317L Fasteners boast higher levels of chromium, nickel, and molybdenum, which gives them superior corrosion resistance compared to 316-grade stainless steel. The 317L variant, being low-carbon, enhances weldability and minimizes the risk of carbide precipitation. These fasteners are known for their excellent tensile strength, good ductility, and robust resistance to pitting, crevice corrosion, and chemical attacks. They maintain their mechanical stability even at elevated temperatures, ensuring reliable performance in aggressive industrial environments. Thanks to their increased molybdenum content, they can handle acidic media like sulfuric, acetic, and phosphoric acids with ease.
| 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 are a go-to choice in industries that demand top-notch corrosion resistance and durability. They’re perfect for chemical processing equipment, like those used in acid production, petrochemical operations, and fertilizer manufacturing. Thanks to their impressive resistance to chloride corrosion, these fasteners thrive in marine settings, desalination plants, and offshore structures. You’ll also find them in pulp and paper mills, textile machinery, food processing equipment, and high-temperature industrial systems. Their strength and reliability in tough conditions make them ideal for heat exchangers, tanks, reactors, and pipelines. SS 317/317L fasteners are designed to deliver long-lasting performance in environments where regular stainless steels just can’t keep up.
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.
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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