Marzouk Steel, based in Tunis, Tunisia, stands out as a top-notch manufacturer and supplier of high-quality Alloy Steel Gr 10.9 bolts. These bolts are celebrated for their remarkable strength, precision, and durability, making them perfect for even the toughest industrial and mechanical challenges. By employing cutting-edge manufacturing methods and strict quality control measures, Marzouk Steel guarantees that every Gr 10.9 bolt provides dependable performance and longevity. The company caters to various sectors, including automotive, construction, heavy machinery, and engineering, offering high-performance fastening solutions that boast exceptional tensile strength, corrosion resistance, and mechanical stability—ideal for critical applications in demanding environments.
Alloy Steel Gr 10.9 bolts are crafted from premium alloy steel, which includes carbon, manganese, chromium, and molybdenum, all engineered for optimal strength, toughness, and wear resistance. These bolts undergo heat treatment to achieve impressive hardness and durability, showcasing mechanical properties like a tensile strength of around 1,040–1,200 MPa, yield strength of approximately 940–1,100 MPa, and an elongation of 8–12%. Their ability to resist deformation, fatigue, and wear ensures secure fastening even under extreme stress, making Alloy Steel Gr 10.9 bolts perfect for heavy-duty industrial applications that demand reliable, long-lasting performance.
| Grades | Grade 10.9 Bolt |
|---|---|
| Standard | ASTM A324, ASME SA324 |
| Size | Dia M 20 to 100 mm Inch 3/4“Â to 3.1/2″ |
| finish | Zinc plated / Plain / Hot dip galvanised |
| Carbon Steel 10.9 | C | P | S | B |
|---|---|---|---|---|
| 0.20-0.55 | 0.025 | 0.025 | 0.003 |
| Grades | Size Range | PS [MPa] | YS (min) [MPa] | TS (min) [MPa] | Hardness [Rockwell] |
|---|---|---|---|---|---|
| Class 10.9 | 5–100 | 830 | 940 | 1040 | C33–39 |
| Class and Material | Nominal Size Range (mm) | Mechanical Properties | ||
|---|---|---|---|---|
| Proof Load (MPa) | Min. Yield Strength (MPa) | Min. Tensile Strength (MPa) | ||
| Class 10.9 Alloy steel, quenched and tempered | 5mm – 100mm | 830 | 940 | 1040 |
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 10.9 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 10.9 Bolts needs!
These bolts find extensive use in automotive, construction, heavy machinery, and industrial equipment applications. They play a crucial role in high-stress fastening for engines, gear assemblies, structural frameworks, and mechanical systems. With their superior tensile strength, toughness, and resistance to wear and corrosion, Alloy Steel Gr 10.9 bolts deliver enduring performance and reliability. Engineers and industrial operators favor these bolts for precision fastening in challenging environments, providing safety, durability, and stability for critical applications that require high-performance fastening solutions.
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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