Majid Fasteners, a leading manufacturer and supplier based in Dubai, UAE, specializes in high-quality fasteners designed to meet international standards. Renowned for their expertise in producing ASTM A193 B6 nuts, Majid Fasteners ensures exceptional strength, durability, and corrosion resistance, catering to the demands of industrial, construction, and engineering sectors. Committed to precision and reliability, the company offers customized solutions to meet diverse project requirements. With a focus on quality control, timely delivery, and competitive pricing, Majid Fasteners has earned a reputation as a trusted partner for businesses seeking premium fasteners in the UAE and beyond.
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What is ASTM A193 B6 Nuts?
ASTM A193 B6 nuts are precision-engineered fasteners made from high-quality chromium-molybdenum steel, providing excellent strength and resistance to wear, corrosion, and high-temperature environments. These nuts exhibit superior mechanical properties, including a minimum tensile strength of 800 MPa, yield strength of 580 MPa, and hardness ranging between 200–250 HB. Designed for critical applications in construction, oil and gas, and power industries, ASTM A193 B6 nuts ensure reliable performance under heavy loads and extreme conditions, making them an essential component for bolted connections requiring durability, safety, and long-term stability.
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ASTM A193 B6 Nuts Mechanical Properties
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 515 |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 205 |
| Elongation in 4D (El) | 30 |
| Reduction | 50 |
| Hardness – (BHN) | 0 |
ASTM A193 B6 Nuts Chemical Composition
| Element | B6 |
| Carbon | 0 – 0.08% |
| Manganese | 0 – 2.00% |
| Phosphorus, max | 0 – 0.045% |
| Sulfur, max | 0 – 0.030% |
| Silicon | 0 – 1.0% |
| Chromium | 19.0 – 9.0% |
| Nickel | 12.0 – 0% |
| Molybdenum | – |
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Types of ASTM A193 B6 Nuts
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ASTM A193 B6 Nuts Uses
ASTM A193 B6 nuts are widely used in industries that demand high strength and durability under extreme conditions. They are commonly applied in pressure vessels, boilers, and flanged connections where high-temperature and high-pressure resistance is essential. These nuts are also utilized in the oil and gas, petrochemical, power generation, and construction sectors for securing critical bolted joints. Additionally, they are ideal for machinery and structural applications requiring corrosion resistance and mechanical reliability. Their robust performance makes them suitable for both heavy-duty industrial installations and safety-critical engineering projects, ensuring secure and long-lasting connections.






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