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Rinku Fasteners is a leading manufacturer and supplier of ASTM A193 B8 CL5 fasteners in Kolkata, India. These high-grade fasteners are designed to withstand high temperatures and corrosive environments, making them ideal for demanding industrial applications. With a commitment to quality and precision, Rinku Fasteners ensures that each product meets stringent ASTM standards, providing reliable performance and durability. Trust Rinku Fasteners for top-notch ASTM A193 B8 CL5 fasteners tailored to your specific needs.
Rinku Fasteners is a reliable manufacturer and supplier located in Kolkata, India, that specializes in making top-notch ASTM A193 B8 Class 5 fasteners for tough industrial applications. The company, with its unwavering commitment to quality, accuracy, and dependability, is delivering fasteners that are designed to meet the strictest of the international standards. Their B8 CL5 fasteners are produced by using cutting-edge methods and high-quality are made so that they have an excellent resistance to corrosion and a long service life. Supported by the skill, state-of-the-art plant, and customer-focused service of the company, Rinku Fasteners is known as a trustworthy source of stainless steel fasteners for the petrochemical, power generation, marine, and high-temperature sectors.
| Element | B8 CL5 | B8 CL5 | B8M CL5 |
| Carbon | 0.37 – 0.49% | 0.08% max | 0.08% max |
| Manganese | 0.65 – 1.10% | 2.00% max | 2.00% max |
| Phosphorus, max | 0.035% | 0.045% | 0.045% |
| Sulfur, max | 0.040% | 0.030% | 0.030% |
| Silicon | 0.15 – 0.35% | 1.00% max | 1.00% max |
| Chromium | 0.75 – 1.20% | 18.0 – 20.0% | 16.0 – 18.0% |
| Nickel | 8.0 – 11.0% | 10.0 – 14.0% | |
| Molybdenum | 0.15 – 0.25% | 2.00 – 3.00% |
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ASTM A193 B8 CL5 Fasteners
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IS BS ASTM |
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160 |
3 mm to 200 mm |
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.
ASTM A193 B8 Class 5 fasteners are basically made of carbidesolution-treated austenitic stainless steel which is generally similar to SS 304 with the chemical composition of the controlled chromium (18–20%), nickel (8–11%) and the carbon content is kept low for better corrosion resistance. The fasteners after the treatment undergo heavy cold-working to strengthen them and also to improve tensile properties. These fasteners offer higher yield strength, excellent toughness as well as superior resistance to oxidation at elevated temperatures. B8 CL5 fasteners through their refined microstructure and enhanced mechanical stability are very strong in stress corrosion cracking, pitting and even wear and thus can be used in service conditions which are demanding.
ASTM A193 B8 Class 5 fasteners are a popular choice in industries where top-notch corrosion resistance and high tensile strength go hand in hand. Typically, you will find them in petrochemical plants, power generation units, refineries, and oil & gas processing systems. Their great performance at high temperatures is what makes them the first choice for heat exchangers, boilers, pressure vessels, and steam lines.
Moreover, these fasteners find their way into marine structures, chemical processing equipment, food processing machinery, and pharmaceutical installations because of their hygienic, rust-resistant nature. To sum up, B8 CL5 fasteners are the ones that can be counted on to deliver long-term performance under chemical, moist, and high thermal stress conditions.
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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