Dang Steel, a reputable manufacturer and supplier based in Da Nang, Vietnam, is known for its high-quality Alloy Steel Gr B7 Fasteners. With state-of-the-art manufacturing facilities and rigorous quality control measures, the company provides durable and reliable fasteners that are perfect for critical industrial applications. Their Alloy Steel Gr B7 Fasteners are engineered to endure extreme pressure, heat, and corrosive environments, ensuring they have a long service life and dependable performance. With a strong commitment to excellence and a wealth of expertise, Dang Steel caters to a diverse range of industries, offering fasteners that comply with international standards and meet specific customer needs.
Alloy Steel Gr B7 Fasteners are mainly made up of chromium and molybdenum, with additional carbon and manganese to boost their strength and durability. They feature impressive hardness, a tensile strength of about 125 ksi, and exceptional heat resistance, making them perfect for high-temperature settings. Their yield strength and elongation properties provide the flexibility and toughness needed under stress. Additionally, these fasteners show good wear resistance and corrosion protection when treated or coated. The blend of alloying elements ensures mechanical reliability, delivering consistent performance in both static and dynamic loading scenarios.
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 find extensive use in industries that demand high strength and temperature resistance, such as oil and gas, chemical processing, power generation, and construction. They play a crucial role in assembling pressure vessels, heat exchangers, boilers, pipelines, and flanges, where durability and safety are paramount. These fasteners are also utilized in refineries, petrochemical plants, and heavy machinery due to their ability to withstand extreme pressure and stress. Their outstanding mechanical properties make them the go-to choice for critical joints and assemblies, ensuring secure and long-lasting connections.
Dang 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 Da Nang, Vietnam.
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