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Mazin Fasteners, located in Muscat, Oman, stands out as a top manufacturer and supplier of high-quality stainless steel fasteners, including the renowned ASTM A193 B8 fasteners. These fasteners are crafted for exceptional performance and reliability, designed to meet rigorous international standards, making them perfect for tough industrial applications. With their impressive strength, resistance to corrosion, and long-lasting durability, ASTM A193 B8 fasteners find their place in various industries such as oil and gas, petrochemical, power generation, and construction. Thanks to precise manufacturing techniques and strict quality control, Mazin Fasteners guarantees that these fasteners provide safe, enduring, and trustworthy performance in critical assemblies.
ASTM A193 B8 fasteners, made from austenitic stainless steel, offer outstanding corrosion resistance and high tensile strength, making them ideal for high-pressure and high-temperature applications. They maintain excellent performance in harsh environments, including chemical, marine, and power industries. Key advantages include durability, resistance to oxidation, and compatibility with various aggressive chemicals. These fasteners meet rigorous industry standards, ensuring reliability and long-term service in 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.
Made from austenitic stainless steel, ASTM A193 B8 fasteners contain 17–20% chromium and 8–12% nickel, which gives them remarkable resistance to oxidation, corrosion, and high temperatures. They boast mechanical properties like high tensile strength, toughness, and good fatigue resistance, making them perfect for high-pressure and high-temperature situations. These fasteners hold their integrity even in harsh environments, including acidic, marine, and industrial settings, ensuring long-term reliability and safety in essential mechanical systems.
Mazin Fasteners is a leading manufacturer and supplier of high-quality fasteners in Muscat, OMAN, with over 8 years of experience serving global industries.
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