Marzouk Steel, located in Tunis, Tunisia, has built a solid reputation as a reliable manufacturer and supplier of top-notch Alloy Steel Gr B6 bolts. Known for their impressive strength, durability, and precision, these bolts are specifically designed to meet the rigorous demands of industrial, automotive, and construction sectors. By employing cutting-edge manufacturing techniques and maintaining strict quality control, Marzouk Steel guarantees that every Gr B6 bolt delivers consistent performance, a long lifespan, and mechanical stability. Catering to the heavy machinery, engineering, and manufacturing industries, the company provides bolts that boast exceptional tensile strength, corrosion resistance, and toughness, making them perfect for high-stress and challenging operational settings.
Alloy Steel Gr B6 bolts are crafted from high-quality alloy steel that includes carbon, chromium, nickel, and molybdenum, all engineered for optimal strength, toughness, and wear resistance. These bolts showcase remarkable mechanical properties, featuring a tensile strength of around 800–950 MPa, yield strength of 600–750 MPa, and an elongation of 10–15%. They undergo heat treatment to enhance hardness, fatigue resistance, and dimensional stability, ensuring reliable performance even under heavy loads and extreme conditions. Their blend of toughness, ductility, and mechanical integrity guarantees secure fastening in critical industrial applications.
| 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 | 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.
B6 Marzouk Steel is a trusted manufacturer and supplier of high-quality Alloy Steel Gr B6 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 Sheet 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 Gr B6 Bolts​ needs!
Alloy Steel Gr B6 bolts find extensive use in automotive, construction, heavy machinery, and industrial equipment applications. They play a crucial role in securing essential components in engines, gear assemblies, structural frameworks, and mechanical systems that operate under high stress. With their superior tensile strength, corrosion resistance, and durability, these bolts promise long-lasting performance and minimized maintenance. Engineers and industrial operators favor Alloy Steel Gr B6 bolts for high-precision, high-strength fastening needs in demanding environments, making them an indispensable part of modern industrial and engineering projects.
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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