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Lina Fasteners is a well-respected manufacturer and supplier of ASTM A193 B8 Stud Bolts, proudly based in Tunis, Tunisia. They provide top-notch fastening solutions to industries around the globe. With state-of-the-art production facilities, a team of skilled experts, and strict quality control measures, Lina Fasteners guarantees that their stud bolts meet the highest ASTM and ASME standards. They serve a variety of sectors, including oil and gas, petrochemical, power generation, marine, and construction. Renowned for their precision threading, material traceability, and prompt deliveries, Lina Fasteners offers both standard and customized ASTM A193 B8 Stud Bolts, designed to withstand high temperatures and pressures, ensuring reliability, durability, and consistent performance in even the most demanding industrial settings worldwide.
ASTM A193 B8 Stud Bolts are crafted from austenitic stainless steel, which is often equivalent to Type 304 stainless steel. Their composition features chromium and nickel, giving them outstanding resistance to corrosion and oxidation. On the mechanical side, these stud bolts showcase impressive tensile strength, high ductility, and toughness across a broad temperature range. They perform reliably in both high and low temperatures, resist scaling, and maintain stable mechanical properties even under thermal cycling. Additionally, ASTM A193 B8 stud bolts are resistant to stress corrosion cracking, ensuring dependable load-bearing performance in pressure-retaining assemblies.
| 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 StudBolt
|
IS
BS
ASTM
|
DIN, ISO, JIS, GB, IS, BS, ASTM |
M 02 to M 160
|
3 mm to 200
|
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 Stud Bolts find extensive use in bolting flanges, valves, and pressure vessels, especially in high-temperature and corrosive environments. You’ll commonly see them in oil and gas refineries, petrochemical plants, chemical processing units, and power generation facilities. They are also widely utilized in heat exchangers, boilers, and piping systems that require secure and reliable joints. Moreover, these bolts are essential in marine and offshore structures, where safety and durability are paramount.
Lina Fasteners ensures that ASTM A193 B8 Stud Bolts are packaged with the utmost care to maintain quality and integrity. Each stud bolt is individually inspected and protected in robust, corrosion-resistant packaging. They are neatly arranged in secure cartons or crates, labeled clearly for easy identification and traceability. Our packaging is designed to prevent damage during transit and handling, ensuring that you receive your fasteners in optimal condition. Choose Lina Fasteners for meticulously packaged, high-quality stud bolts.
Lina Fasteners is a leading manufacturer and supplier of high-quality fasteners in Tunis, Tunisia, with over 8 years of experience serving global industries.
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