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Rinku Fasteners is a reputable manufacturer and supplier located in Kolkata, India, known for providing top-notch Stainless Steel 304L Fasteners that are built to last, resist corrosion, and perform reliably. Crafted from low-carbon austenitic stainless steel, these fasteners are perfect for applications that demand excellent weldability and resistance to chemicals. By blending cutting-edge manufacturing techniques with rigorous quality control, Rinku Fasteners ensures their products meet international standards. Their SS 304L Fasteners find extensive use in various sectors, including petrochemicals, food processing, pharmaceuticals, water treatment, and construction, establishing the company as a go-to source for trustworthy fastening solutions.
Stainless Steel 304L Fasteners are composed of chromium (18–20%), nickel (8–12%), and a lower carbon content, which boosts weldability and reduces carbide precipitation during welding. This alloy is known for its outstanding corrosion resistance, impressive tensile strength, and good yield strength, making it suitable for diverse environments. SS 304L also offers excellent toughness, formability, and oxidation resistance at moderate temperatures. The low-carbon composition enhances resistance to intergranular corrosion while ensuring strong mechanical stability, making these fasteners a reliable choice for both structural and chemical applications.
| Grade | C | Mn | Si | P | S | Cr | Mo | Ni | N |
| SS 304L | 0.035 max | 2 max | 1.0 max | 0.045 max | 0.030 max | 18 – 20 | – | 8 – 13 | – |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.0 g/cm3 | 1400 °C (2550 °F) | Psi – 75000 , MPa – 550 | Psi – 30000 , MPa – 205 | 35 % |
| Material Specification | ASME SA193, ASTM A194, UNS S30403 Bolts |
|---|---|
| Standard | BS, IS, JIS, ISO, GB, ANSI, UNI, ASTM, DIN, ASME, |
| Bolts, Studs Threads: | BSW, UNF, BSF, METRIC, UNC, or as required |
| Bolts Size | M2, M14, M30, M5, M6, M16, M20, M3, M8, M36, M4, M10, M24, M2.5, M12, to M160 |
| Length | 3 to 200 mm |
| In Form of: | Square, Hex, Threading, Round as per Gauge Etc. |
| Fasteners Standard: | ANSI
DIN: DIN 933, DIN 934, DIN 931, DIN 970, UTS : UNF, UNC, NPT, NPTF, UNEF, UNS, ISO: ISO 4033, JIS standards, ISO 4032 |
| Source of raw materials | Dhamm Steel, JSPL, RINL, Tata Steel, Usha Martin, Mukund Steel etc. |
| Head drive: | Slotted, Phillips, Six-Lobe, Phillips/Slot etc |
| bolting materials Surface Coating: |
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| bolting Test Certificate: | EN 10204 / 3.1 |
| Production process | M24 to M100 : hot forging, M2 to M24: machining and CNC, Cold Froging |
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 304L Fasteners are extensively utilized in industries that prioritize exceptional corrosion resistance, ease of cleaning, and dependable mechanical performance. They are particularly well-suited for food processing equipment, pharmaceutical machinery, chemical storage systems, heat exchangers, water treatment facilities, and marine environments. Thanks to their low-carbon structure, they are ideal for welded structures, piping systems, and fabrication projects.
We maintain the highest standards in quality for our Stainless Steel 304L Fasteners. Appropriate certificates are issued with sealed documents as proof of quality. These binders are packaged in pallets, crates and wooden cases to ensure fumigation-free, with appropriate shipping methods available. Our packaging also prevents dust corrosion or environmental damage when stored and transported to the mouth. Manufacturing is followed by rigorous fastener testing, documentation and certification to ensure reliability and compliance with industry standards.
Rinku Fasteners is a leading manufacturer and supplier of high-quality fasteners in Kolkata, India, with over 8 years of experience serving global industries.
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