Marzouk Steel, headquartered in Tunis, Tunisia, is a trusted manufacturer and supplier of high-quality steel products, serving industries that demand strength, precision, and durability. Among its specialized offerings are Alloy Steel GR 6 Fasteners, designed for high-pressure, high-temperature, and critical mechanical applications. Manufactured using advanced technology and stringent quality control, GR 6 fasteners provide exceptional tensile strength, toughness, and corrosion resistance. Marzouk Steel ensures that every GR 6 fastener meets international standards, offering engineers and fabricators a dependable fastening solution for power plants, petrochemical facilities, oil and gas equipment, and heavy industrial machinery.
Alloy Steel GR 6 Fasteners are made from high-grade chromium-molybdenum alloy steel, engineered for superior tensile strength, hardness, and thermal resistance. Their chemical composition, including carbon, chromium, and molybdenum, enhances toughness, fatigue resistance, and corrosion resistance. GR 6 fasteners respond effectively to heat treatment, optimizing mechanical properties such as yield strength, tensile strength, and impact resistance. With excellent structural integrity under extreme conditions, GR 6 fasteners are ideal for critical applications requiring long-term durability, safety, and consistent performance.
| GR 6 | C | Mn | P | S | Si | Ni | Cr |
| 0.15% | 1.00% | 0.04% | 0.03% | 1.00% | – | 11.5-13.5% |
| Specification | Material | Nominal Size, In. | Tempering Temp. °F | Proof Load Stress, ksi | Hardness Rockwell | |
| Min | Max | |||||
| ASTM A194 Grade 6 | Medium Carbon Steel, Quenched and Tempered | 1/4 – 4 | 1000 | 175 | C24 | C38 |
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 trustworthy Alloy Steel GR 6 Fasteners manufacturer and supplier in Tunis, Tunisia. We specialize in high-grade premium steel products, including Alloy Steel, Carbon Steel, Mild Steel, and Galvanized Steel, with heavy focus on Carbon Steel Sheets and Plates. Pipes, Tubes, Flanges, Forged Fittings, and Bars form our huge inventory. Committed to punctual delivery and exceptional customer service, we take pride in utilizing the finest raw materials to ensure maximum strength, durability, and performance for heavy industrial applications. Contact us today for all your Alloy Steel Gr 6 Fastener needs!
Alloy Steel GR 6 Fasteners are widely used in industries that require high-strength, durable, and reliable fastening solutions. They are commonly applied in boilers, heat exchangers, turbines, petrochemical plants, oil and gas pipelines, and heavy industrial machinery. Designed to withstand high pressures, elevated temperatures, and cyclic loads, GR 6 fasteners maintain structural integrity and provide secure, leak-proof connections. Engineers and fabricators rely on these fasteners for critical applications where durability, safety, and operational efficiency 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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