Marzouk Steel, headquartered in Tunis, Tunisia, is a leading manufacturer and supplier of high-quality steel products, catering to industries that require precision, strength, and reliability. Among its specialized offerings are Alloy Steel B6 Stud Bolts, designed for high-pressure, high-temperature, and critical mechanical applications. Produced using advanced manufacturing technology and stringent quality control, B6 stud bolts deliver exceptional tensile strength, toughness, and corrosion resistance. Marzouk Steel ensures that every B6 bolt meets international standards, providing engineers and fabricators with a dependable fastening solution for power plants, petrochemical facilities, oil and gas equipment, and heavy industrial machinery.
Alloy Steel B6 Stud Bolts are manufactured from high-grade chromium-molybdenum alloy steel, offering superior tensile strength, hardness, and thermal resistance. Their chemical composition, including carbon, chromium, and molybdenum, enhances toughness, fatigue resistance, and corrosion resistance. B6 bolts respond well 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, B6 stud bolts are ideal for critical 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 B6 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 B6 Stud Bolts | C | Mn | Si | P | S | Co | Cr |
| 0.15 max | 1.00 max | 1.00 max | 0.040 | 0.030 | – | 11.50-13.50 |
| Yield Rp0.2 (MPa) | Tensile Rm (MPa) | Impact KV/Ku (J) | Elongation A (%) | Reduction in cross section on fracture Z (%) | As-Heat-Treated Condition | Brinell hardness (HBW) |
|---|---|---|---|---|---|---|
| 666 (≥) | 997 (≥) | 42 | 14 | 43 | Solution and Aging, Annealing, Ausaging, Q+T,etc | 121 |
| Temperature (°C) | Modulus of elasticity (GPa) | Mean co-eff. of thermal expansion | Thermal conductivity (W/m·°C) | Specific thermal capacity (J/kg·°C) | Specific electrical resistivity (Ω mm²/m) | Density (kg/dm³) | Poisson’s coefficient, ν |
|---|---|---|---|---|---|---|---|
| 31 | – | – |  |  | 0.44 | – |  |
| 525 | 957 | – | 42.3 | 411 |  | – |  |
| 951 | – | 21 | 21.2 |  |  | 444 | 444 |
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 B6 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 B6 Stud Bolt needs!
Alloy Steel B6 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. Designed to endure high pressures, elevated temperatures, and cyclic loads, B6 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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