Marzouk Steel, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality steel products, serving industries that demand precision, strength, and durability. Among its specialized offerings are Alloy Steel B7 Stud Bolts, engineered for high-pressure, high-temperature, and critical mechanical applications. Manufactured using advanced technology and strict quality control, B7 stud bolts provide exceptional tensile strength, toughness, and corrosion resistance. Marzouk Steel ensures that every B7 bolt meets international standards, offering engineers and fabricators a reliable fastening solution for power plants, petrochemical facilities, oil and gas equipment, and heavy industrial machinery.
Alloy Steel B7 Stud Bolts are made from high-grade chromium-molybdenum steel, designed for superior tensile strength, hardness, and thermal resistance. Their chemical composition, including carbon, chromium, and molybdenum, enhances toughness, fatigue resistance, and corrosion resistance. B7 bolts respond effectively to heat treatment, optimizing mechanical properties such as yield strength, tensile strength, and impact resistance. With excellent structural integrity and durability under high-pressure and high-temperature conditions, B7 stud bolts are ideal for demanding industrial applications requiring long-term reliability, safety, and consistent performance.
| Specifications | : | ASTM A 193 ASME SA 193 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to B7 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 B7 Stud Bolts | 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 |
|---|---|---|---|---|---|
| B7 | 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.
Marzouk Steel is a trusted manufacturer and supplier of high-quality Alloy Steel B7 Stud Bolts in Tunis, Tunisia. We specialize in premium steel products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel, with a strong focus on Carbon Steel Sheets and Plates. Our extensive inventory also includes Pipes, Tubes, Flanges, Forged Fittings, and Bars. Committed to fast delivery and exceptional customer service, we use only the finest raw materials to ensure superior strength, durability, and performance for critical industrial applications. Contact us today for all your Alloy Steel B7 Stud Bolt needs!
Alloy Steel B7 Stud Bolts are widely used in industries that require high-strength, durable fasteners capable of withstanding extreme conditions. They are commonly applied in boilers, heat exchangers, turbines, petrochemical plants, oil and gas pipelines, and heavy industrial machinery. Engineered to endure high pressures, elevated temperatures, and cyclic loads, B7 bolts maintain structural integrity and provide secure fastening. Engineers and fabricators rely on these bolts for critical applications where safety, operational efficiency, and long-term durability are essential. Their combination of toughness, thermal stability, and mechanical strength ensures dependable performance in demanding industrial environments.
Marzouk 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 Tunis, Tunisia.
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