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Ramu Fasteners, based in Hyderabad, has built a solid reputation as a reliable manufacturer and supplier of top-notch industrial fasteners, including ASTM A193 B7 Nuts. Renowned for their precision, strength, and dependability, Ramu Fasteners crafts nuts specifically designed for high-pressure and high-temperature settings. Their ASTM A193 B7 Nuts are engineered to ensure secure and long-lasting fastening in even the toughest industrial environments. These nuts are widely utilized in sectors like petrochemical, power generation, oil and gas, and chemical processing, all while meeting rigorous international standards. With advanced manufacturing techniques and strict quality control, Ramu Fasteners guarantees that each nut delivers durability, mechanical integrity, and consistent performance for critical applications.
ASTM A193 B7 Nuts are crafted from medium-carbon alloy steel, which is quenched and tempered to achieve exceptional strength and toughness. They boast a tensile strength of 125–150 ksi, yield strength of 105–130 ksi, and an elongation of 12–18%, ensuring they can handle heavy loads and resist mechanical stress. This alloy remains stable even at elevated temperatures and is resistant to wear, fatigue, and deformation. These impressive mechanical properties make ASTM A193 B7 Nuts perfect for pairing with high-strength bolts in high-pressure, high-temperature, and heavy-load industrial applications, guaranteeing secure and reliable fastening.
Material | Specification | Standards | Size | Length |
ASTM A193 B7 Nuts | 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 Nuts find their place in various industries that require strong, durable, and dependable fastening solutions. They are particularly suited for pressure vessels, pipelines, boilers, chemical processing plants, oil and gas equipment, and power generation systems, where secure and long-lasting assembly is essential. These nuts are often used alongside ASTM A193 B7 Bolts to ensure structural integrity and reliability in demanding environments.
Ramu Fasteners ensures the secure packaging of ASTM A193 B7 Nuts for optimal protection and easy handling. Each nut is individually packed to prevent damage during transit and storage, with clear labeling for quick identification. Our packaging is designed to maintain the integrity of the nuts and facilitate efficient inventory management. Trust Ramu Fasteners for meticulously packaged components, ensuring that your ASTM A193 B7 Nuts arrive in perfect condition, ready for reliable performance in your projects.
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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