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Hamad Fasteners, based in Riyadh, Saudi Arabia, is a well-respected manufacturer and supplier of top-notch fastening products that meet international standards. Known for their precision, durability, and reliability, the company serves a variety of industries with products tailored for critical environments. One standout in their extensive product range is the ASTM A193 B8 CL3 Stud Bolts, which are celebrated for their remarkable corrosion resistance, exceptional strength, and performance in high-temperature settings. Crafted with cutting-edge technology and rigorous quality control, these stud bolts promise long-lasting reliability even in the toughest applications.
These ASTM A193 B8 CL3 Stud Bolts are made from austenitic stainless steel, usually Type 304, and undergo carbide-solution treatment to enhance their resistance to intergranular corrosion. They boast a tensile strength of around 100 ksi (690 MPa) and a yield strength of 65 ksi (450 MPa), ensuring outstanding mechanical durability. Their non-magnetic nature, paired with high toughness and oxidation resistance, enables them to perform effectively in both high-pressure and elevated-temperature situations. These features make them a trustworthy choice for critical 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 |
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ASTM A193 B8 CL3 stud bolts are commonly used in high-temperature and high-pressure environments, such as in petrochemical, oil and gas, and power generation industries. They are ideal for critical applications requiring robust performance, including flanged joints, reactors, and pressure vessels. Their superior strength and corrosion resistance make them suitable for equipment exposed to extreme conditions, ensuring reliable and secure connections in demanding industrial settings.
You’ll find ASTM A193 B8 CL3 Stud Bolts widely utilized in sectors like petrochemical, oil and gas, power generation, and marine applications. They’re often used in flanges, valves, pressure vessels, boilers, and heat exchangers, where strength and corrosion resistance are vital. Their ability to endure harsh chemicals, extreme temperatures, and oxidizing environments makes them ideal for refineries, chemical plants, and offshore platforms. Plus, they’re commonly found in pipeline systems and heavy machinery where reliability and durability are paramount. These stud bolts are the go-to option for industries that demand both strength and superior corrosion resistance.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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