Alloy Steel Gr B7 Fasteners are made from high-grade alloy steel enriched with chromium, molybdenum, and carbon, providing exceptional strength, hardness, and resistance to wear and corrosion. They exhibit excellent mechanical properties, including high tensile strength, toughness, and the ability to withstand extreme pressure and temperatures. Precisely engineered and heat-treated, these fasteners maintain dimensional stability and structural integrity in demanding environments. Their superior metallurgical composition ensures long-lasting performance, making them ideal for critical applications in industries that require robust and reliable fastening solutions.
Alloy Steel Gr B7 Fasteners are made from high-grade alloy steel enriched with chromium, molybdenum, and carbon, providing exceptional strength, hardness, and resistance to wear and corrosion. They exhibit excellent mechanical properties, including high tensile strength, toughness, and the ability to withstand extreme pressure and temperatures. Precisely engineered and heat-treated, these fasteners maintain dimensional stability and structural integrity in demanding environments. Their superior metallurgical composition ensures long-lasting performance, making them ideal for critical applications in industries that require robust and reliable fastening solutions.
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 widely used in industries where safety, reliability, and strength are essential. Common applications include oil and gas pipelines, petrochemical plants, power generation, refineries, and high-pressure industrial piping systems. They are also employed in machinery assembly, structural frameworks, and construction projects requiring durable, high-performance fastening solutions. Designed to endure heavy loads, extreme temperatures, and corrosive environments, these fasteners ensure secure and leak-proof connections. Trusted by engineers and technicians for both new installations and maintenance, Alloy Steel Gr B7 Fasteners provide dependable performance, longevity, and peace of mind in critical industrial operations.
Chetan 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 Delhi, India.
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