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Ramu Fasteners, located in Hyderabad, stands out as a top manufacturer and supplier of high-quality fasteners, with a special focus on ASTM A193 B8T Bolts. Renowned for their precision, strength, and reliability, these bolts are crafted to meet rigorous industrial and mechanical standards. Each ASTM A193 B8T Bolt boasts impressive corrosion resistance, high tensile strength, and reliable performance even in tough conditions. Catering to sectors like oil and gas, petrochemical, power generation, and construction, Ramu Fasteners is dedicated to providing fastening solutions that boost structural integrity, operational efficiency, and safety. They are a trusted name for ASTM A193 B8T Bolts.
ASTM A193 B8T Bolts are crafted from austenitic stainless steel, enriched with chromium, nickel, and molybdenum, which offer exceptional resistance to corrosion, pitting, and crevice attack. These bolts are known for their high tensile strength, toughness, and durability, even under high pressure and elevated temperatures. They maintain their shape, resist wear, fatigue, and deformation, ensuring secure torque retention. With precision manufacturing, they feature uniform threads and consistent performance. The combination of superior mechanical strength and excellent corrosion resistance makes ASTM A193 B8T Bolts perfect for critical industrial, chemical, and marine applications that demand long-lasting reliability.
| 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 B8T Bolts
| 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 B8T Bolts find extensive use in the oil and gas, petrochemical, chemical processing, power generation, and marine industries, thanks to their strength, durability, and resistance to corrosion. They are perfect for securing components in pressure vessels, pipelines, pumps, boilers, flanges, and heat exchangers that are subjected to high pressure, high temperatures, and corrosive environments. Additionally, these bolts are utilized in offshore applications, ensuring that critical structures remain secure and reliable in challenging conditions.
We uphold stringent quality standards for our ASTM A193 B8T Bolts, subjecting them to rigorous tests such as Hardness Test, Chemical Analysis via Spectro Analysis, PMI Testing, Flattening Test, Micro and Macro Tests, Pitting Resistance Test, Flaring Test, Intergranular Corrosion (IGC) Test. Each order includes a commercial invoice, packaging list, Certificate of Origin, and Guarantee Letter. For added assurance, we offer third-party inspection certificates to validate the excellence and suitability of our bolts for various applications, ensuring client satisfaction.
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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