Ahmer Steel is a well-respected manufacturer and supplier based in Manama, Bahrain, known for its high-performance Alloy Steel Gr B7 Fasteners designed to withstand tough industrial conditions. Crafted from top-notch chromium-molybdenum alloy steel, these fasteners boast remarkable strength, durability, and heat resistance. Produced under rigorous quality controls, they adhere to international standards, ensuring reliability in high-pressure and high-temperature settings. Alloy Steel Gr B7 Fasteners find their place in petrochemical plants, refineries, power stations, and heavy engineering sectors. Their ability to maintain mechanical stability amid stress, vibration, and extreme temperatures makes them a trusted choice for critical equipment and structural connections.
Alloy Steel Gr B7 Fasteners are constructed from chromium-molybdenum alloy steel, which provides excellent hardenability, impressive tensile strength, and robust wear resistance. The chromium content enhances hardness and corrosion resistance, while molybdenum improves high-temperature strength and helps prevent deformation under heavy loads. These fasteners exhibit high yield and tensile strength, outstanding fatigue resistance, and dependable toughness after heat treatment. Their mechanical properties remain stable even under thermal cycling, pressure changes, and continuous vibration. This perfect blend of chemistry and strength guarantees consistent, long-lasting performance in demanding industrial 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 |
Alloy Steel Gr B7 Fasteners are essential in industries where heat, pressure, and mechanical stress require highly reliable fastening components. You’ll often find them in petroleum refineries, chemical processing units, boiler systems, turbines, heat exchangers, high-pressure pipelines, and power plant machinery. Their strength in the face of thermal fluctuations makes them perfect for heavy equipment like pumps, compressors, valves, reactors, and flange connections. These fasteners are the go-to choice for applications that demand exceptional reliability and performance, ensuring that critical systems operate smoothly and safely.
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Ahmer 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 Manama, Bahrain.
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