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Malik Fasteners, a reputable manufacturer and supplier located in Manama, Bahrain, is well-known for providing top-notch fastening solutions designed to meet the rigorous demands of various industries. Among their standout products are the ASTM A193 B8M bolts, celebrated for their remarkable corrosion resistance, strength, and durability in critical service environments. With a strong focus on precision engineering and adherence to international quality standards, Malik Fasteners guarantees that each B8M bolt fulfills strict performance criteria for petrochemical plants, marine facilities, construction projects, and power generation units. Supported by cutting-edge technology and reliable customer service, the company has become a go-to partner for dependable fastener solutions throughout Bahrain and the Gulf region.
ASTM A193 B8M bolts are crafted from AISI 316 stainless steel, which includes chromium, nickel, and molybdenum to boost corrosion resistance, particularly in chloride-rich and marine settings. The typical chemical makeup features about 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. On the mechanical side, these bolts deliver impressive tensile and yield strength, good ductility, and dependable performance even at high temperatures. They are usually available in Class 1 (strain-hardened) or Class 2 (solution-annealed) conditions to ensure consistent hardness, toughness, and long-lasting stability under heavy industrial loads.
| 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 B8M Bolt
|
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 B8M bolts find extensive use in industries that demand exceptional corrosion resistance and mechanical reliability. Their 316 stainless-steel makeup makes them perfect for environments exposed to seawater, chemical processing facilities, desalination plants, and offshore structures. In the petrochemical and oil & gas industries, they are frequently used in pipelines, pressure vessels, heat exchangers, and refinery equipment. Additionally, construction and infrastructure projects depend on B8M bolts for structural joints, ensuring safety and durability in various applications.
Malik fasteners contain careful packages of ASTM A193 B8M bolts to ensure safe delivery and optimal quality. Each bolt is individually inspected and carefully wrapped to prevent damage during transport. We use durable protective coatings and fasteners to keep the bolt intact. Custom packaging is available to meet specific needs. Our commitment to quality extends through our packaging, ensuring that your fasteners arrive in perfect condition, ready for immediate use.
Malik Fasteners is a leading manufacturer and supplier of high-quality fasteners in Manama, Bahrain, with over 8 years of experience serving global industries.
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