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Ramu Fasteners is a reputable manufacturer and supplier of ASTM A193 B8 Stud Bolts based in Hyderabad, providing dependable fastening solutions designed for high-temperature and corrosive environments. With state-of-the-art manufacturing facilities and rigorous quality control measures, the company guarantees precision, strength, and adherence to international standards. Ramu Fasteners offers ASTM A193 B8 stud bolts in a variety of sizes, thread types, and surface finishes to cater to a wide range of industrial needs. Renowned for their outstanding corrosion resistance and durability, these stud bolts find extensive use in pressure vessels, piping systems, and critical bolted joints.
ASTM A193 Grade B8 stud bolts are crafted from austenitic stainless steel, which is generally equivalent to Type 304 stainless steel. This alloy is enriched with chromium and nickel, ensuring excellent resistance to corrosion and oxidation, even at elevated temperatures. B8 stud bolts exhibit moderate tensile and yield strength, along with remarkable ductility and toughness. They excel in high-temperature applications and are resistant to scaling and general corrosion. In their annealed state, these stud bolts are non-magnetic, making them a reliable choice for demanding industrial settings.
| 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 | |
| B8M 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 StudBolt
|
IS
BS
ASTM
|
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160
|
3 mm to 200
|
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 Stud Bolts are widely used in industries requiring high-strength and corrosion-resistant fastening solutions. Key applications include petrochemical plants, oil and gas refineries, and power generation facilities. These bolts are essential for securing pressure vessels, flanges, valves, and pipeline assemblies in high-temperature and high-pressure environments. Their superior durability and reliability make them ideal for critical operations, ensuring safety and stability in demanding conditions. Choose ASTM A193 B8 Stud Bolts for dependable performance in challenging industrial applications.
ASTM A193 B8 Stud Bolts are extensively utilized in high-temperature and moderately corrosive environments. They are commonly found in pressure vessels, flanges, piping systems, valves, pumps, and heat exchangers. These bolts are frequently used in petrochemical plants, refineries, power generation facilities, and chemical processing industries. They are suitable for both indoor and outdoor applications where heat and corrosion resistance is essential. Their reliability, ease of installation, and consistent mechanical performance make them perfect for critical bolting tasks in industrial and energy sectors.
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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