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Ramu Fasteners, based in Hyderabad, stands out as a top manufacturer and supplier of high-quality industrial fasteners, including the renowned ASTM A193 B7 Bolts. Known for their precision, strength, and reliability, Ramu Fasteners crafts bolts that are built to handle the toughest industrial challenges. Their ASTM A193 B7 Bolts are specifically designed to endure high pressure, extreme temperatures, and heavy mechanical loads, ensuring a secure and lasting hold. These bolts find their place in various industries like petrochemical, oil and gas, power generation, and chemical processing, all thanks to advanced manufacturing techniques and rigorous quality control that guarantee robust, dependable, and safe fastening solutions for critical operations.
ASTM A193 B7 Bolts are crafted from medium-carbon alloy steel, typically quenched and tempered to boost their strength and durability. They boast a tensile strength ranging from 125 to 150 ksi, a yield strength of 105 to 130 ksi, and a moderate elongation of 12 to 18%, which together provide impressive toughness and load-bearing capabilities. These bolts perform reliably even under high temperatures and are resistant to wear, fatigue, and mechanical stress. Their material composition ensures they maintain dimensional stability, dependable strength, and long-lasting durability, making ASTM A193 B7 Bolts perfect for high-pressure and high-temperature industrial applications where safety and structural integrity are paramount.
Material | Specification | Standards | Size | Length |
ASTM A193 B7 Bolt | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
| 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 |
| 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% |
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 B7 Bolts are extensively utilized in industries that demand high-strength and reliable fastening solutions. They are particularly suited for pressure vessels, boilers, pipelines, oil and gas equipment, chemical processing plants, and power generation systems, especially in environments where high pressure and temperature are prevalent. These bolts are often paired with matching nuts to guarantee secure assembly and structural integrity, ensuring that they meet the rigorous demands of various industrial applications.
Introducing Ramu Fasteners’ ASTM A193 B7 Bolts, engineered for superior strength and durability. These high-performance bolts are crafted from high-alloy steel, ideal for demanding applications in extreme temperatures and high-pressure environments. Each bolt meets stringent ASTM standards, ensuring exceptional reliability and safety. Packaged securely to prevent damage, our fasteners come with clear labeling for easy identification. Trust Ramu Fasteners for unmatched quality and performance in every project.
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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