Sayed Steel, based in Safat, Kuwait, has built a solid reputation as a reliable manufacturer and supplier of top-notch fasteners, including their Alloy Steel Gr B7 Fasteners. Renowned for their precision engineering and outstanding durability, Sayed Steel delivers products that adhere to strict international standards. These Alloy Steel Gr B7 Fasteners are crafted to endure high pressure and extreme conditions, providing remarkable resistance to wear, corrosion, and mechanical stress. Thanks to their advanced production techniques and rigorous quality control, Sayed Steel guarantees dependable performance for industrial, construction, and engineering projects, making them a trusted partner for clients in need of high-strength, long-lasting fastening solutions.
The Alloy Steel Gr B7 Fasteners from Sayed Steel are made from a chromium-molybdenum alloy steel that undergoes heat treatment to achieve impressive tensile strength and hardness. Typically, they contain carbon, manganese, chromium, and molybdenum in carefully measured amounts, resulting in a nominal tensile strength of 1050 MPa and a yield strength of 830 MPa. The quenching and tempering process boosts their toughness, fatigue resistance, and overall reliability, making them perfect for high-pressure and high-temperature applications. Their mechanical properties ensure secure and durable fastening in demanding industrial and construction environments.
Specification :Â ASTM A193 / ASME SA193
Dimension :Â DIN, ISO, ASTM, JIS, BS, GB, IS and all International Standards
Size Range :Â M3 – M56 | 3/6″ to 2″ | Custom Sizes
Length :Â 3 mm to 200 mm
| Alloy Steel B7 | C | Mn | Si | P | S | Mo | Cr |
| 0.08-0.15 | 1.00 max | 1.00 max | 0.040 | 0.030 | 0.15-0.25 | 11.50-13.50 |
| Grade | Diameter | Tensile Strength | Yield Strength | Elongation | Reduction | Hardness |
| Grade B7 | M64 and under | 860 | 720 | 16 | 50 | 321 HBW or 35 HRC |
| Over M64 to M100 | 795 | 655 | 16 | 50 | 321 HBW or 35 HRC | |
| Over M100 to M180 | 690 | 515 | 18 | 50 | 321 HBW or 35 HRC |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
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Hexagon Bolts / Set Screws |
Stud Bolts |
Hexagon Nuts |
Socket Capscrews |
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DIN 931 |
BS4882 |
DIN 934 |
DIN 912 |
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DIN 933 |
DIN 976 |
BS 1768 |
DIN 6912 |
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BS 1768 |
BS 1769 |
DIN 7984 |
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UNI 5731 |
BS 1083 |
ANSI B18.3 |
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UNI 5739 |
BS 3692 |
ISO 4762 |
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ISO 4014 |
ISO 4032 |
UNI 5931 |
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ISO 4017 |
ISO 4033 |
BS 2470 |
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BS 1769 |
ANSI B18.2.2 |
BS 4168 |
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BS 3692 |
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ANSI B18.2.1 |
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Socket & Slotted Set Screws |
Socket & Slotted Countersunk Screws |
Studs |
Washers |
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DIN 913 |
DIN 963 |
DIN 938 |
DIN 125 |
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DIN 914 |
DIN 7991 |
DIN 939 |
DIN 9021 |
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DIN 915 |
BS 4168 |
DIN 2510 |
BS 4320 |
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DIN 916 |
BS 1981 |
BS 4439 |
BS 3410 |
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DIN 551 |
BS 483 |
BS 2693 |
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DIN 553 |
BS 2470 |
Spring Washers |
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DIN 438 |
DIN 127 |
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BS 4168 |
BS 4464 |
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BS 1802 |
These Alloy Steel Gr B7 Fasteners find extensive use in the oil and gas, petrochemical, power generation, and heavy engineering sectors, where strength and durability are crucial. They are particularly suited for pressure vessels, pipelines, pumps, valves, and structural assemblies that operate under significant stress and extreme temperatures. Engineers and contractors trust these fasteners for critical applications, ensuring safety, structural integrity, and long-term operational efficiency. Sayed Steel’s Alloy Steel Gr B7 Fasteners deliver reliable performance in challenging environments, making them a vital component for industrial and infrastructure projects around the globe.
Sayed Steel is a leading manufacturer, supplier and exporter of high-quality Carbon Steel, Alloy Steel, Mild Steel and Galvanized Steel products. Our extensive product range includes Pipes, Tubes, Flanges, Pipe Fittings, Forged Fittings, Sheets and Plates, catering to various industries in Safat, Kuwait.
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