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Poang Fasteners, a leading manufacturer and supplier in Da Nang, Vietnam, proudly presents ASTM A193 B7 Nuts. Engineered for exceptional strength and durability, these nuts are perfect for high-stress applications and extreme environments. Complying with stringent ASTM standards, they deliver unmatched performance and reliability. Ideal for industrial use, our ASTM A193 B7 Nuts come with precise dimensions and secure packaging, ensuring optimal quality and safety for every project. Trust Poang Fasteners for top-tier components and service.Poang Fasteners, based in Da Nang, Vietnam, is a leading manufacturer and supplier of industrial-grade fasteners, offering high-performance solutions like ASTM A193 B7 Nuts. Designed for high-temperature and high-pressure applications, these nuts are manufactured from alloy steel and heat-treated for maximum strength and durability. Poang Fasteners adheres strictly to ASTM and international quality standards, ensuring consistency, reliability, and superior mechanical performance. Serving key sectors such as oil & gas, petrochemicals, power generation, and heavy construction, the company is known for its precise manufacturing processes, competitive pricing, and timely delivery. Their B7 nuts are trusted for critical bolting operations worldwide.
ASTM A193 B7 Nuts offer superior strength and durability, ideal for high-stress and high-temperature applications. Made from heat-treated alloy steel, these nuts provide excellent resistance to corrosion, fatigue, and extreme pressures. Their precise dimensions ensure a secure fit with corresponding bolts, enhancing overall connection integrity. Meeting stringent ASTM standards, they guarantee reliability and performance in critical industrial settings. Choose ASTM A193 B7 Nuts for robust and dependable fastening solutions.ASTM A193 B7 Nuts are typically made from chromium-molybdenum alloy steel (commonly AISI 4140 or 4142), heat-treated to achieve high tensile strength. Their chemical composition includes Cr (0.75–1.20%), Mo (0.15–0.25%), C (0.37–0.49%), and Mn (0.65–1.10%). These nuts exhibit excellent mechanical properties with a minimum tensile strength of 125 ksi (860 MPa) and yield strength of 105 ksi (720 MPa). They offer good resistance to thermal stress and fatigue, making them ideal for use in pressure vessels, flanges, and piping systems operating in elevated temperature and pressure conditions.
Material | Specification | Standards | Size | Length |
ASTM A193 B7 Nuts | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
| 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 |
| 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% |
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 B7 Nuts are widely used in high-pressure and high-temperature applications, including petrochemical, oil and gas, and power generation industries. They are essential for securing critical components in equipment such as flanges, valves, and turbines. These nuts are ideal for use in environments requiring enhanced strength and resistance to extreme conditions. Their reliability makes them suitable for heavy-duty applications, ensuring safe and stable connections in demanding industrial settings.
Poang Fasteners ensures the secure packaging of ASTM A193 B7 Nuts for optimal protection and easy handling. Each nut is individually packed to prevent damage during transit and storage, with clear labeling for quick identification. Our packaging is designed to maintain the integrity of the nuts and facilitate efficient inventory management. Trust Poang Fasteners for meticulously packaged components, ensuring that your ASTM A193 B7 Nuts arrive in perfect condition, ready for reliable performance in your projects.
Poang Fasteners is a leading manufacturer and supplier of high-quality fasteners in Da Nang, Vietnam, with over 8 years of experience serving global industries.
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