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Ramu Fasteners stands out as a trusted manufacturer and supplier of ASTM A193 B8 Class 2 Bolts in Hyderabad, providing top-notch fastening solutions for essential industrial applications. With a commitment to precision manufacturing, quality control, and timely delivery, the company produces bolts that adhere to strict international standards. The ASTM A193 B8 CL2 Bolts from Ramu Fasteners are solution annealed and strain-hardened, ensuring they offer exceptional strength and corrosion resistance. These bolts are highly regarded for their performance in high-temperature and high-pressure environments, making Ramu Fasteners a go-to choice in the power, chemical, and petrochemical sectors.
ASTM A193 B8 CL2 Bolts are crafted from austenitic stainless steel, usually Type 304, which includes chromium and nickel for outstanding corrosion resistance. Class 2 bolts undergo strain-hardening to achieve greater tensile and yield strength compared to Class 1. In terms of mechanics, they showcase high tensile strength, good ductility, toughness, and resistance to oxidation at elevated temperatures. These characteristics make ASTM A193 B8 CL2 Bolts perfect for challenging environments where strength, durability, and thermal stability are crucial.
| 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 CL2 Hex 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.
ASTM A193 B8 CL2 Bolts find extensive use in high-temperature and high-pressure settings that demand robust, corrosion-resistant fasteners. You’ll commonly see them in pressure vessels, valves, flanges, heat exchangers, and piping systems. They are widely utilized in oil and gas refineries, petrochemical plants, chemical processing facilities, power generation sites, and marine environments. Their superior strength and resistance to scaling and oxidation make them ideal for continuous operation at elevated temperatures. These bolts ensure secure and durable connections in critical assemblies, minimizing maintenance needs and enhancing operational reliability.
We ensure that our ASTM A193 B8 CL2 bolts are packaged with the utmost care to maintain their quality and integrity. Each bolt is individually inspected and then securely packed in durable, corrosion-resistant containers. Our packaging is designed to protect the bolts during transit and storage, preventing any damage or contamination. Whether you need small or large quantities, we offer flexible packaging solutions to meet your specific requirements, ensuring your bolts arrive in perfect condition.
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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