Home > ASTM A193 B8 Fasteners
Majid Fasteners, a top-notch manufacturer and supplier based in Dubai, UAE, specializes in high-quality ASTM A193 B8 Fasteners that are perfect for high-temperature and high-pressure situations. Crafted from premium stainless steel, these fasteners offer outstanding corrosion resistance, durability, and mechanical reliability. Majid Fasteners is committed to following ASTM standards closely, ensuring their products are ideal for use in refineries, petrochemical plants, power generation, and marine settings. Their ASTM A193 B8 bolts, nuts, and studs are designed to perform exceptionally well in tough conditions, making them perfect for critical bolting tasks. Customers rely on Majid Fasteners for consistent quality, prompt delivery, and trustworthy fastening solutions across various demanding industries.
ASTM A193 B8 Fasteners are crafted from stainless steel Grade 304, which includes chromium (18–20%), nickel (8–11%), along with carbon, manganese, silicon, and some trace elements. These fasteners are known for their impressive mechanical strength, showcasing great tensile and yield properties, and they excel in resisting corrosion in both atmospheric and chemical settings. They hold up well under high temperatures and offer dependable stress and creep resistance. Thanks to their austenitic structure, ASTM A193 B8 Fasteners also boast good ductility and hardness, making them perfect for high-temperature and mildly corrosive environments.
| 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 Fasteners | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
ASTM A193 B8 Fasteners find their place in a variety of applications that demand corrosion resistance, heat endurance, and high mechanical reliability. You’ll often see them in petrochemical processing, oil and gas facilities, refineries, and chemical plants, where they’re used for flanges, valves, pressure vessels, and heat exchangers. Power generation units depend on these fasteners for boilers, turbines, and high-temperature piping systems. They’re also utilized in marine engineering, food processing equipment, water treatment systems, and pharmaceutical machinery, thanks to their hygienic and rust-resistant qualities. Their durability and stability make them a go-to choice for structural and industrial bolting in tough environments.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
