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Ramu Fasteners, located in Hyderabad, has built a solid reputation as a reliable manufacturer and supplier of top-notch industrial fasteners. Known for their precision, durability, and dependable performance, their ASTM A193 B8 CL3 Stud Bolts stand out for their impressive corrosion resistance, remarkable strength, and ability to handle high temperatures and moderate pressures. Crafted using advanced techniques and rigorous quality control, these stud bolts ensure secure and long-lasting fastening in critical assemblies. Ramu Fasteners is dedicated to delivering superior product quality, timely service, and customer satisfaction, making them a trusted supplier in Hyderabad and throughout India, particularly in the chemical, petrochemical, and marine sectors.
ASTM A193 B8 CL3 Stud Bolts are crafted from austenitic stainless steel, akin to Type 304 stainless steel, and are strain-hardened to achieve Class 3 strength. This unique composition offers outstanding resistance to corrosion and oxidation across various industrial settings. In terms of mechanics, these bolts deliver high tensile strength, impressive toughness, and exceptional fatigue resistance. They maintain their shape and performance even under high temperatures and stress. The blend of corrosion resistance and enhanced mechanical properties guarantees reliability and a long service life in demanding industrial applications.
| Element | B7 | B8 | B8M |
| 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% |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B7 | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 | |
| B8 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M Class 1 | All | 75 | 30 | 30 | 50 |
| B8 Class 2 | Up to 3/4 | 125 | 100 | 12 | 35 |
| 7/8 – 1 | 115 | 80 | 15 | 35 | |
| 1-1/8 – 1-1/4 | 105 | 65 | 20 | 35 | |
| 1-3/8 – 1-1/2 | 100 | 50 | 28 | 45 |
Material | Specification | Standards | Size | Length |
ASTM A193 B8 CL3 StudBolt | 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 CL3 Stud Bolts find extensive use in industries that demand corrosion-resistant fasteners with superior mechanical strength. You’ll commonly see them in chemical processing plants, petrochemical refineries, oil and gas facilities, and marine engineering projects. These bolts are typically utilized in flanges, valves, pressure vessels, heat exchangers, and piping systems, ensuring that critical components are securely fastened and able to withstand the rigors of their environments.
At Ramu Fasteners, ASTM A193 B8 CL3 stud bolts are meticulously packaged to ensure optimal protection during transit and storage. Each bolt is individually wrapped in anti-corrosive material and securely placed in durable, custom-sized boxes to prevent damage. The packaging is clearly labeled with product specifications and handling instructions for easy identification. Our commitment to careful packaging helps maintain the integrity and quality of the fasteners, ensuring they arrive in perfect condition and ready for use.
Ramu Fasteners is a leading manufacturer and supplier of high-quality fasteners in Hyderabad, India, with over 8 years of experience serving global industries.
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