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Brian Fasteners, a Houston-based USA company, is a reliable manufacturer and supplier of high-quality ASTM A193 B8 CL2 bolts. Leveraging years of experience and a dedication to precision engineering, Brian Fasteners produces long-lasting, corrosion-resistance fasteners engineered to the highest requirements of different industrial applications. Their advanced manufacturing facility follows international standards rigorously for providing foolproof fastening solutions for mission-critical applications. Serving customers throughout the United States and worldwide, Brian Fasteners pairs excellent material quality with technical expertise to furnish infrastructure, energy, and heavy equipment projects with reliable fastening solutions.
ASTM A193 B8 CL2 bolts are produced from AISI 304 stainless steel, solution annealed and strain-hardened for improved strength. Their chemical make-up consists of chromium (18–20%), nickel (8–12%), carbon (max 0.08%), and other trace elements like manganese, phosphorus, and sulfur. These bolts have superior mechanical properties of at least 125 ksi tensile strength and 100 ksi yield strength. They provide superior corrosion resistance, particularly in extreme conditions, making them ideal for critical high-temperature and high-pressure applications. The strain-hardening process provides better performance under mechanical stress, providing reliability and durability in industrial applications.
| 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 CL2 Hex 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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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 CL2 bolts find extensive application in high-stress and high-temperature conditions like power generation, petrochemical facilities, oil and gas sectors, and pressure vessels. Their enhanced mechanical strength and corrosion resistance make them suitable for flange connections, pipeline constructions, and reactor parts. These bolts also play a vital role in marine, offshore, and building environments where structural strength and protection against environment factors are of utmost importance. Their capacity for performance under harsh conditions makes them a favorite among engineers and producers that require durability, safety, and adherence to rigid industry standards.
We ensure that our ASTM A193 B8 CL2 bolts are packaged with the utmost care to maintain their quality and integrity. Each bolt is individually inspected and then securely packed in durable, corrosion-resistant containers. Our packaging is designed to protect the bolts during transit and storage, preventing any damage or contamination. Whether you need small or large quantities, we offer flexible packaging solutions to meet your specific requirements, ensuring your bolts arrive in perfect condition.
Brian Fasteners is a leading manufacturer and supplier of high-quality fasteners in Houston , USA, with over 8 years of experience serving global industries.
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