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Bilal Fasteners is a top-notch manufacturer and supplier located in Jakarta, Indonesia, known for its high-quality industrial fasteners. With a solid reputation for precision and durability, Bilal Fasteners offers a diverse range of products, including ASTM A193 B8 CL4 bolts. These bolts are designed to meet strict international standards, ensuring they perform reliably in demanding situations. The company caters to various sectors, such as petrochemical, power generation, and construction, providing efficient solutions and prompt deliveries. Bilal Fasteners is dedicated to delivering outstanding performance and ensuring customer satisfaction through consistent product quality and technical know-how.
ASTM A193 B8 CL4 bolts are crafted from austenitic stainless steel, specifically alloy 304, which is solution-treated and strain-hardened to boost strength. Their typical chemical makeup includes chromium (18-20%), nickel (8-11%), and low carbon content to enhance corrosion resistance. On the mechanical side, these bolts boast a minimum tensile strength of 125 ksi, a yield strength of 100 ksi, and impressive elongation properties. Their high tensile and yield strengths, along with good ductility and resistance to stress corrosion cracking, make them perfect for high-temperature and high-pressure settings.
| Element | B8 CL4 | B8 CL4 | B8M CL4 |
| 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 |
| B8 CL4 | 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 CL4 Class 1 | All | 75 | 30 | 30 | 50 |
| B8M CL34Class 1 | All | 75 | 30 | 30 | 50 |
| B8 CL4 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 CL4 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 CL4 Bolt
| IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
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You’ll find ASTM A193 B8 CL4 bolts widely used in industries that require top mechanical performance and corrosion resistance, like petrochemical plants, oil and gas refineries, power generation facilities, and marine applications. These bolts are particularly suited for flanged joints, valves, pressure vessels, and heat exchangers. Their robust performance under extreme temperatures and pressures makes them reliable for critical operations. Plus, they’re commonly used in construction projects where structural integrity and resistance to environmental conditions are crucial. Their versatility and durability make them vital components across a broad spectrum of industrial applications.
At Bilal Fasteners, ASTM A193 B8 CL4 bolts are meticulously packaged to ensure safe and secure delivery. Each bolt is individually inspected and then packed in high-quality, protective materials to prevent damage during transit. Our packaging includes clear labeling with detailed specifications and batch information, facilitating easy identification and traceability. We offer flexible packaging options to meet customer requirements, ensuring that the bolts arrive in optimal condition for immediate use in your critical applications.
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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