Majid Fasteners, a top-notch manufacturer and supplier based in Dubai, UAE, offers high-quality ASTM A193 B8 Nuts that are perfect for high-performance fastening in tough, corrosive, and high-temperature settings. Crafted from premium Grade 304 stainless steel, these nuts boast outstanding durability, resistance to oxidation, and impressive strength even under pressure. Majid Fasteners is committed to adhering to ASTM standards, ensuring that each nut meets the rigorous industrial requirements for refineries, petrochemical plants, power stations, and marine applications. Their B8 Nuts are specifically designed for dependable, long-lasting fastening of flanges, valves, fittings, and other critical components, making them the go-to choice for demanding industrial and structural projects.
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What is ASTM A193 B8 Nuts?
ASTM A193 B8 Nuts are crafted from stainless steel Grade 304, which includes 18–20% chromium, 8–11% nickel, along with carbon, manganese, silicon, and a few trace alloys. This unique blend gives them remarkable resistance to corrosion, solid tensile and yield strength, and impressive performance even at high temperatures. Thanks to their austenitic structure, these nuts boast excellent ductility, toughness, and resistance to stress corrosion cracking. They maintain their mechanical integrity under heat, pressure, and harsh environments, making them perfect for demanding applications that require reliable and durable fastening solutions.
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ASTM A193 B8 Nuts Chemical Composition
| ASTM A193 B8 Nuts | Manganese, max | Phosphorus, max | Sulfur, max | Silicon | Chromium |
|---|---|---|---|---|---|
| 0.08 | 2.00 | 0.045 | 0.030 | 1.00 | 18.0-20.0 |
ASTM A193 B8 Nuts Mechanical Properties
| Grade | Diameter | Tensile Strength | Yield Strength | Elongation | Reduction | Hardness |
|---|---|---|---|---|---|---|
| Grade B8, B8M, Class 1, 1D | All Diameters | 515 | 205 | 30 | 50 | 223 HBW or 96 HRB |
| Grade B8, B8C, B8T, Class 2 | M20 and under | 860 | 690 | 12 | 35 | 321 HBW or 35 HRC |
| Grade B8, B8C, B8T, Class 2 | M20 to M24, inclusive | 690 | 550 | 20 | 45 | 321 HBW or 35 HRC |
| Grade B8, B8C, B8T, Class 2 | M24 to M30, inclusive | 655 | 450 | 25 | 45 | 321 HBW or 35 HRC |
| Grade B8, B8C, B8T, Class 2 | M30 to M36, inclusive | 620 | 345 | 30 | 45 | 321 HBW or 35 HRC |
| Grade B8, B8M2, Class 2B | M48 and under | 655 | 515 | 25 | 40 | 321 HBW or 35 HRC |
| Grade B8, B8M2, Class 2B | M48 to M64, inclusive | 620 | 450 | 30 | 40 | 321 HBW or 35 HRC |
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Why Majid Fasteners?
- Large Inventory
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ASTM A193 B8 Nuts Specifications
Material | Specification | Standards | Size | Length |
ASTM A193 B8 Nuts | IS BS ASTM | DIN, ISO, JIS, GB, IS, BS, ASTM | M 02 to M 160 | 3 mm to 200 mm |
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ASTM A193 B8 Nuts Types
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ASTM A193 B8 Nuts Uses
ASTM A193 B8 Nuts are a go-to choice in industries that need fastening solutions that can withstand corrosion and high temperatures. You’ll often find them in oil and gas refineries, petrochemical plants, and chemical processing facilities, where they secure flanges, valves, heat exchangers, pressure vessels, and boiler systems. Power generation plants depend on these nuts for turbine connections, steam lines, and equipment that operates at high temperatures. Their stainless steel design also makes them suitable for marine structures, food processing systems, pharmaceutical equipment, and water treatment facilities. Plus, B8 Nuts are widely used in industrial machinery and structural applications that demand reliable, long-lasting fastening performance.
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