Maduka Metals is a well-respected manufacturer and supplier located in Abuja, Nigeria, with a focus on high-performance Hastelloy Forgings. The company prides itself on its commitment to quality and precision engineering, delivering forgings that cater to the rigorous demands of various industries, including chemical processing, marine, aerospace, and power generation. By utilizing cutting-edge manufacturing technology and skilled craftsmanship, Maduka Metals guarantees that each Hastelloy forging offers exceptional strength, corrosion resistance, and reliability. Their unwavering dedication to excellence and customer satisfaction has made them a trusted name in Nigeria’s metal manufacturing and supply industry.
Hastelloy Forgings are mainly made up of nickel, molybdenum, and chromium, with small amounts of iron, tungsten, cobalt, and manganese added to boost performance. This distinctive blend provides outstanding resistance to both oxidizing and reducing agents, making it perfect for challenging chemical environments. On a mechanical level, Hastelloy showcases high tensile strength, excellent ductility, and impressive toughness, even at elevated temperatures. The alloy’s yield strength and hardness can be enhanced further through forging and heat treatment, ensuring reliable performance under mechanical stress and corrosive conditions.
Specifications ASTM B564 / ASME SB564
Flat bar blocks up to 27″ width and 15,000 lbs.
Cylinders and sleeves up to 50″ maximum O.D. and 65″ maximum length
Discs and hubs up to 50″ diameter and 20,000 lbs.
Rolled, hand forged or mandrel forged rings up to 84″ maximum O.D. and 40″ maximum length
Rounds, shafts and step shafts up to 144″ maximum length and 20,000 lbs.
Grades Hastelloy C22, Hastelloy C276
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| C 276 | 0.010 max | 1.00 max | 0.08 max | 0.03 max | 2.50 max | 50.99 min* | 14.50 – 16.50 | 4.00 – 7.00 | 15.00 – 17.00 | 0.04 max |
| C 22 | 0.010 max | 0.50 max | 0.08 max | 0.02 max | 2.50 max | 50.015 min* | 20.00 – 22.50 | 2.00 – 6.00 | 12.50 – 14.50 | 0.02 max |
| B2 | 0.02 max | 1.0 max | 0.1 max | 0.03 max | 1.0 max | Bal | 1.0 max | 2.0 max | 26 – 30 | 0.04 max |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Alloy C276 | 8.89 g/cm3 | 1370 °C (2500 °F) | Psi – 1,15,000 , MPa – 790 | Psi – 52,000 , MPa – 355 | 40 % |
| Alloy C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 1,00,000 , MPa – 690 | Psi – 45000 , MPa – 310 | 45 % |
| Alloy B2 | 9.2 g/cm3 | 1370 °C (2500 ºF ) | Psi – 1,10,000 , MPa – 760 | Psi – 51000 , MPa – 350 | 40 % |
To improve the surface finish of Hastelloy forgings, use techniques like polishing, grinding, or shot peening. Additionally, chemical or electrochemical cleaning can remove surface contaminants and enhance smoothness.
The most suitable forging techniques for Hastelloy include open-die forging and closed-die forging, which ensure optimal material flow and minimize defects. These methods provide the necessary strength and precision for high-performance applications.
To determine if Hastelloy forgings meet your needs, evaluate their chemical composition, mechanical properties, and corrosion resistance in your specific operating conditions. Conduct material testing or consult with suppliers for tailored solutions based on your application requirements.
Hastelloy Forgings find extensive use across industries that demand superior corrosion resistance and mechanical durability. They play a crucial role in chemical processing plants for creating reactors, heat exchangers, and pressure vessels that are exposed to strong acids and oxidizing agents. In the aerospace industry, Hastelloy is utilized in engine components and exhaust systems due to its strength at high temperatures. The marine and power generation sectors also depend on Hastelloy forgings for valves, pumps, and turbine parts that operate in corrosive or high-stress environments. Their versatility and reliability make them a top choice for critical industrial applications around the globe.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Maduka Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Abuja, Nigeria
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