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Hamad Fasteners, based in Riyadh, Saudi Arabia, stands out as a leading manufacturer and supplier of top-notch fastening solutions that meet international standards. With a keen emphasis on quality, precision, and durability, the company serves industries that require high-performance products capable of enduring extreme conditions. Among their extensive range of products, ASTM A193 B8 Fasteners are particularly prized for their remarkable corrosion resistance, strength, and thermal stability. Crafted with cutting-edge technology and rigorous quality control, these fasteners are relied upon in critical industrial applications around the globe.
ASTM A193 B8 Fasteners are constructed from austenitic stainless steel, mainly Type 304, which provides outstanding resistance to oxidation and corrosive environments. They boast a tensile strength of approximately 75 ksi (515 MPa) and a yield strength of 30 ksi (205 MPa), ensuring they remain stable and reliable under stress. Their non-magnetic nature, high ductility, and ability to handle thermal cycling make them perfect for high-temperature applications. With exceptional toughness and a long service life, these fasteners are ideal for both general and demanding conditions.
| 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 Fasteners
|
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.
ASTM A193 B8 fasteners are widely used in high-strength applications and require corrosion resistance. Typical applications include oil refineries, power plants, and the marine environment. Components are protected in areas of high pressure and high temperatures such as valves, flanges, and fittings. Their austenitic stainless steel design ensures durability and reliability, making them ideal for use in harsh chemical and industrial applications These fasteners meet industry standards a strength, improving safety and performance in critical areas.
You’ll find ASTM A193 B8 Fasteners widely utilized in the petrochemical, oil and gas, power generation, and marine sectors. They’re commonly found in boilers, flanges, heat exchangers, valves, pressure vessels, and pipeline systems where strength and corrosion resistance are crucial. Their capability to withstand harsh environments, including exposure to chemicals and high pressure, makes them perfect for refineries, offshore platforms, and chemical plants. Plus, these fasteners are also used in heavy machinery and structural assemblies, ensuring secure fastening, durability, and consistent performance in critical operations.
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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