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Murad Fasteners has established itself as a reliable manufacturer and supplier in Doha, Qatar, specializing in top-notch ASTM A193 B8 CL5 Stud Bolts that are designed to withstand high-strength and corrosive environments. With state-of-the-art manufacturing facilities and strict quality control measures, Murad Fasteners ensures that their stud bolts feature precise threading, outstanding dimensional accuracy, and consistent performance. These products are crafted to meet rigorous international standards and the demanding needs of various projects. Catering to sectors like oil and gas, petrochemical, power generation, and heavy engineering, Murad Fasteners offers both standard and customized solutions at competitive prices, all while ensuring dependable delivery.
The ASTM A193 B8 CL5 Stud Bolts are made from austenitic stainless steel, similar to Type 304, and are solution annealed and strain hardened to achieve superior strength. Their composition includes chromium and nickel, which provide excellent resistance to corrosion and oxidation. Mechanically, Class 5 stud bolts boast higher tensile and yield strength compared to standard B8 grades, along with remarkable toughness and ductility. They maintain their mechanical stability even under high temperatures, sustained loads, and pressure, making them perfect for challenging operating conditions.
| 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% |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
| B8 CL5 | 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 CL5 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M CL5 Class 1 | All | 75 | 30 | 30 | 50 |
| B8 CL5 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 | |
| B8M CL5 Class 2 | Up to 3/4 | 110 | 95 | 15 | 45 |
| 7/8 – 1 | 100 | 80 | 20 | 45 | |
| 1-1/8 – 1-1/4 | 95 | 65 | 25 | 45 | |
| 1-3/8 – 1-1/2 | 90 | 50 | 30 | 45 |
Material | Specification | Standards | Size | Length |
ASTM A193 B8 CL5 Stud Bolt
| 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.
These ASTM A193 B8 CL5 Stud Bolts are extensively used in applications that demand enhanced strength and corrosion resistance. You’ll often find them in flanged joints, pressure vessels, boilers, heat exchangers, valves, and piping systems across the oil and gas, petrochemical, and power generation industries. Their design makes them ideal for assemblies that face high pressure, thermal stress, and corrosive environments. With their durability, strength, and long service life, these stud bolts are perfect for critical industrial fastening applications.
At Murad Fasteners, ASTM A193 B8 CL5 stud bolts are meticulously packaged to ensure safe delivery and maintain product integrity. Each stud bolt is individually inspected and protected with anti-corrosion coatings before being securely packed in sturdy, labeled boxes or crates. Custom packaging options are available to meet specific requirements. Our packaging process safeguards against damage during transit, ensuring that you receive high-quality, ready-to-use fasteners that meet your exacting standards.
Murad Fasteners is a leading manufacturer and supplier of high-quality fasteners in Doha, Qatar, with over 8 years of experience serving global industries.
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