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Hamad Fasteners, a reputable manufacturer and supplier based in Riyadh, Saudi Arabia, is dedicated to delivering top-notch fastening solutions tailored for tough industrial applications. One of their standout products, ASTM A193 B8T Nuts, is specifically engineered for high-temperature and corrosive environments, ensuring remarkable strength, durability, and reliability. Crafted to meet international standards, these nuts guarantee secure fastening for essential systems in petrochemical plants, power generation facilities, chemical processing units, and marine applications. With a commitment to strict quality control, Hamad Fasteners ensures that their products provide long-lasting performance and safety across all applications.
Made from stainless steel Grade 304 or 316 and featuring a tempered finish, ASTM A193 B8T Nuts are designed to enhance strength even at elevated temperatures. They boast excellent corrosion resistance, particularly against pitting, crevice corrosion, and stress corrosion cracking in environments rich in chlorides. On a mechanical level, these nuts deliver high tensile and yield strength, toughness, and stability under thermal cycling and high-pressure conditions, making them perfect for critical fastening needs.
| 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 B8T Nuts
| 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.
These nuts find extensive use in pipelines, heat exchangers, pressure vessels, chemical processing equipment, marine structures, and refineries. They’re also essential in power generation systems, offshore platforms, and various industrial settings where strength, corrosion resistance, and high-temperature performance are vital. With their impressive combination of durability, reliability, and mechanical integrity, ASTM A193 B8T Nuts offer secure and enduring fastening solutions for even the most demanding industrial environments.
We provide complete documentation on our ASTM A193 B8T nuts, including 100% radiography test reports, raw material test reports, customer test reports, and heat treatment plans. This includes our packaging, fumigation certificates, marketing invoices, quality assurance systems, and raw materials. In addition, we issue manufacturer test certificates (MTC) under EN 10204/3.1B. Our ASTM A193 B8T nuts are packaged according to industry standards and manufactured to meet customer specifications, ensuring quality and complying with all required documentation.
Hamad Fasteners is one of the Industrial suppliers and manufacturers of quality fasteners in Riyadh, Saudi Arabia, that has spent more than 12 years serving various industries.
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