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Bilal Fasteners is a prominent manufacturer and supplier located in Jakarta, Indonesia, focusing on high-performance industrial fasteners, such as ASTM A193 B8M bolts. With a solid reputation for quality, reliability, and prompt delivery, Bilal Fasteners caters to a wide range of clients in the construction, petrochemical, and marine sectors. The company guarantees that each bolt adheres to international standards, blending precision engineering with durable materials. Renowned for their dedication to excellence, Bilal Fasteners offers customized fastening solutions designed to meet specific project needs, establishing themselves as a trusted ally in Indonesia’s fastener manufacturing industry.
ASTM A193 B8M bolts are crafted from austenitic stainless steel, specifically alloy 316, which includes 16–18% chromium, 10–14% nickel, and 2–3% molybdenum. This unique blend boosts corrosion resistance, particularly against chlorides and acidic conditions. On the mechanical side, these bolts provide a minimum tensile strength of 75 ksi, a yield strength of 30 ksi, and outstanding ductility and toughness, even at high temperatures. The material’s non-magnetic and high-strength characteristics make it perfect for challenging environments where mechanical reliability and chemical resistance are crucial.
| 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.
Thanks to their exceptional resistance to oxidation and chloride-induced corrosion, ASTM A193 B8M bolts are commonly used in corrosive and high-temperature settings. Typical applications include chemical processing equipment, marine hardware, heat exchangers, pressure vessels, and oil and gas pipelines. These bolts are also well-suited for the food processing and pharmaceutical industries, where hygiene and resistance to harsh cleaning agents are vital. Their durability and strength in extreme conditions make them essential for offshore drilling, power generation, and structural applications, ensuring long-lasting performance and safety in the toughest industrial environments.
Bilal 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.
Bilal Fasteners is a leading manufacturer and supplier of high-quality fasteners in Indonesia, Jakarta, with over 8 years of experience serving global industries.
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