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Mazin Fasteners is a trusted manufacturer and supplier of ASTM A193 B6X Nuts, proudly based in Muscat, Oman. We cater to essential bolting needs both regionally and internationally. Our focus is on precision manufacturing, rigorous quality control, and compliance with globally recognized standards. With state-of-the-art production facilities and a skilled technical team, we create nuts that are built to withstand high temperatures and pressures. Our commitment to material traceability, consistent quality, and timely delivery has made us a go-to supplier for industries like power generation, petrochemicals, refineries, and heavy engineering.
ASTM A193 B6X Nuts are crafted from chromium-molybdenum alloy steel, similar to Grade B6 but with improved chemistry and heat treatment for enhanced strength. This alloy composition boosts tensile and yield strength, offers excellent toughness, and provides solid resistance to high-temperature deformation. These nuts maintain stable hardness, reliable load-bearing capacity, and resist creep even in elevated temperatures. Their mechanical properties ensure they remain dimensionally stable, have a long service life, and provide secure fastening in challenging pressure and thermal conditions.
| Element | B6X |
| Carbon | 0 – 0.15% |
| Manganese | 0 – 1.00% |
| Phosphorus, max | 0 – 0.040% |
| Sulfur, max | 0 – 0.03% |
| Silicon | 0 – 1.00% |
| Chromium | 11.5 – 13.5% |
| Nickel | – |
| Molybdenum | 0.20-0.30% |
| Tensile Strength/Ultimate Tensile Stress (UTS) – (Mpa) | 620 |
| Yield Strength/Proof Stress(0.2% Offset) (YS) – (Mpa) | 485 |
| Elongation in 4D (El) | 15 |
| Reduction | 50 |
| Hardness – (BHN) | 0 – 262 |
|
Material |
Specification |
Standards |
Size |
Length |
|
ASTM A193 B6X 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.
ASTM A193 B6X Nuts find their place in high-temperature and high-pressure bolting applications where strength and reliability are paramount. Common uses include steam and gas turbines, boilers, pressure vessels, heat exchangers, and power generation equipment. They’re also frequently employed in petrochemical plants, refineries, and oil and gas processing systems that face thermal cycling and sustained loads. These nuts are perfect for flange connections and critical joints that need to resist creep, stress, and high operating temperatures, making them essential for safety-critical industrial applications.
We are dedicated to delivering high-quality ASTM A193 B6X Nuts while ensuring a seamless customer experience with thorough documentation. Our comprehensive package includes commercial invoices, packing lists, fumigation certificates, heat treatment charts, and quality assurance plans to verify product authenticity. Additionally, we provide a NABL-approved lab test report for further validation. We also offer various test certificates for ASTM A193 B6X Nuts, such as MTC as per EN 10204/3.1b, PMI Test Certificate, 100% radiography test report, and Third Party Inspection Certificate, demonstrating our commitment to superior product quality and client satisfaction.
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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