Alloy Steel Gr B7M Bolts are tough, high-strength fasteners crafted for critical industrial and mechanical tasks where durability and reliability are a must. These bolts are made from a special alloy steel that includes elements like chromium and molybdenum, giving them impressive tensile strength, hardness, and resistance to wear and corrosion. With their precise threading, consistent dimensions, and smooth finishes, Gr B7M bolts guarantee secure connections even in high-pressure and high-temperature settings. They’re widely utilized in industries such as oil and gas, petrochemical, power generation, and heavy engineering, offering long-lasting, safe, and dependable fastening solutions.
Alloy Steel Gr B7M Bolts are strength-fasteners particularly meant for critical applications that need superior durability and corrosion resistance. Usually produced from 0.35-0.50% Carbon, 0.60-0.90% Manganese, 0.15-0.35% Silicon, 1.00-1.50% Chromium and 0.15-0.30% Molybdenum. These bolts have superior mechanical properties. Heat-treated for improved strength they resist high temperatures and corrosion, providing consistent performance. Alloy Steel Gr B7M Bolts are suitable for safe and durable fastening in critical conditions.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to B7M mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts |
| Alloy Steel B7M | C | Mn | P | S | Si | Cr | Mo |
| 0.37-0.49 | 0.65-1.10 | 0.035 Max | 0.04 Max | 0.15-0.35 | 0.75-1.20 | 0.15-0.25 |
| Grade | Size | Tensile ksi, min | Yield, ksi, min | Elong, %, min | RA % min |
|---|---|---|---|---|---|
| B7M | Up to 2-1/2 | 125 | 105 | 16 | 50 |
| 2-5/8 – 4 | 115 | 95 | 16 | 50 | |
| 4-1/8 – 7 | 100 | 75 | 18 | 50 |
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
These bolts are primarily made of iron, combined with carbon, chromium, molybdenum, and a few trace elements to boost their mechanical properties. This unique blend ensures they have high tensile and yield strength, toughness, and the ability to resist fatigue and deformation under stress. Mechanically, Gr B7M bolts excel in shear strength, impact resistance, and dimensional stability. Heat treatment enhances their hardness, tensile strength, and wear resistance, making them perfect for demanding applications where safety and reliability are crucial.
You’ll often find Alloy Steel Gr B7M Bolts in pressure vessels, flanged joints, pipelines, heavy machinery, and structural assemblies. They’re particularly suited for connecting components in environments that are high-pressure, high-temperature, and chemically exposed. Thanks to their strength, corrosion resistance, and long-term performance, Alloy Steel Gr B7M Bolts are the go-to choice for industries that need reliable, maintenance-free, and safe fastening solutions in critical applications.
Chetak 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 Hyderabad, India.
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