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Rinku Fasteners, based in Kolkata, India, stands out as a top manufacturer and supplier of high-quality Stainless Steel 321/321H Stud Bolts, specifically designed for tough, high-temperature, and corrosive settings. Known for their precision engineering and unwavering quality, the company delivers fastening solutions that adhere to strict international standards. Their SS 321/321H Stud Bolts are produced using cutting-edge machinery and go through thorough quality checks to guarantee outstanding durability, precise dimensions, and reliability. Catering to sectors like petrochemicals, power generation, refineries, and chemical processing, Rinku Fasteners is dedicated to providing products that excel in performance, longevity, and resistance to oxidation and thermal stress.
Stainless Steel 321/321H Stud Bolts are crafted from titanium-stabilized austenitic stainless steel, which includes chromium and nickel. The Grade 321H variant has a higher carbon content, enhancing its strength at elevated temperatures and improving creep resistance. The titanium stabilization helps prevent carbide precipitation during welding or extended heat exposure, ensuring the bolts maintain their structural integrity. These stud bolts boast excellent tensile strength, oxidation resistance, and thermal stability. Their mechanical properties include good ductility and durability, allowing them to perform well even under thermal cycling. SS 321/321H Stud Bolts are perfect for applications that demand high-temperature strength and corrosion resistance.
| Grade | Stainless Steel 321 |
| Specifications | ASTM A193 / ASME SA193, DIN, ASTM, BS and all International Standards |
| Length | 3mm to 200mm |
| Size | M 02 to M 160, Custom Sizes |
| Types | Threaded Rod, Class A double ended stud, Tie Rod, Double Ended Stud, Stud Bolts, Bronze Hex Studs, Threaded Studs etc |
| Element | Ni | C | Mn | P | S | Si | Cr |
| SS 321 | 9.00 – 12.00 | 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 17.0-19.0 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| SS 321 | 8.0 g/cm3 | 1454 °C (2650 °F) | Psi – 75000 , MPa – 515 | Psi – 30000 , MPa – 205 | 40 % |
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 321/321H Stud Bolts find extensive use in industries that face extreme heat and corrosive environments. They are frequently employed in heat exchangers, boilers, furnace components, and thermal processing systems. Petrochemical and refinery plants depend on them for piping systems, pressure vessels, and reactor components that are constantly exposed to high temperatures. Power generation facilities utilize these bolts in various applications, ensuring reliability and performance in challenging conditions. Their robust design makes them a go-to choice for any application where high-temperature strength and corrosion resistance are essential.
At Rinku Fasteners, we ensure premium protection for our Stainless Steel 321/321H stud bolts through meticulous packaging. Each stud bolt undergoes a thorough inspection and is individually wrapped in protective material to prevent damage. They are then securely packed in sturdy, labeled boxes with detailed product specifications and quantities. Our packaging safeguards against environmental factors and physical impacts, ensuring that your high-performance stud bolts arrive in excellent condition, ready for immediate use.
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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