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Ramu Fasteners is a reputable manufacturer and supplier of ASTM A193 B8T Fasteners based in Hyderabad, providing dependable fastening solutions for industrial settings that face high temperatures and corrosive conditions. With state-of-the-art manufacturing facilities and rigorous quality control measures, the company guarantees exceptional dimensional accuracy, strength, and consistent quality. Ramu Fasteners offers B8T fasteners in a variety of sizes, thread standards, and finishes to comply with international specifications. Renowned for their outstanding resistance to oxidation and high-temperature corrosion, ASTM A193 B8T fasteners are commonly utilized in critical bolting applications within the power, chemical, and petrochemical sectors.
ASTM A193 Grade B8T fasteners are crafted from austenitic stainless steel, which is comparable to Type 321 stainless steel. This alloy is stabilized with titanium, effectively preventing chromium carbide precipitation and enhancing resistance to intergranular corrosion during high-temperature operations. B8T fasteners exhibit commendable tensile and yield strength, along with excellent ductility and toughness. They maintain mechanical stability and oxidation resistance even at elevated temperatures, making them ideal for continuous high-temperature and pressure applications.
| 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 Fasteners
|
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 fasteners, made from stainless steel with enhanced high-temperature strength and resistance, are commonly used in high-temperature and high-pressure environments. They are ideal for applications in the petrochemical industry, power generation, and gas processing, where they withstand harsh conditions. Their corrosion resistance and strength make them suitable for boilers, pressure vessels, and exhaust systems. These fasteners also manufacture turbines, reactors, and other critical machinery requiring reliable performance under extreme conditions.
ASTM A193 B8T Fasteners find extensive use in scenarios that demand reliable performance under high temperatures. They are commonly found in boilers, heat exchangers, pressure vessels, and high-temperature piping systems. These fasteners are widely used in power plants, petrochemical refineries, chemical processing facilities, and thermal equipment. Their resistance to intergranular corrosion makes them perfect for welded assemblies and prolonged high-temperature service. B8T fasteners ensure secure fastening, minimize maintenance needs, and offer a long service life, providing safety and reliability in challenging environments.
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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