Welcome to Okoye Nickel Alloys, your trusted partner in Kinshasa for robust industrial solutions. We specialize in sourcing and supplying premium nickel alloys, with a dedicated focus on the exceptional performance of Hastelloy C22 tubing. Our presence in the heart of Congo allows us to understand and meet the specific demands of regional industries, ensuring you receive materials that stand up to the most challenging environments, backed by local expertise and reliable service.
The strength of Hastelloy C22 tubing lies in its sophisticated composition, a precise blend of nickel, chromium, and molybdenum fortified with tungsten. This formulation gives the tubing outstanding mechanical properties, including high tensile strength and excellent ductility. More importantly, it offers phenomenal resistance to a vast range of corrosive threats, from harsh acids like sulfuric and hydrochloric to the dangers of pitting and crevice corrosion, ensuring long-lasting structural integrity.
| Inconel Tube Standards | ASTM B622, ASTM B775, ASTM B619, ASTM B626, ASTM B516, ASTM B751 |
|---|---|
| International Specification | din 17751, ISO 6207 |
| Astm B626 Nickel Alloy C22 Welded Tube Size | 6.35 mm To 152 mm OD |
| Astm B622 Hastelloy C22 Seamless Tubing Size | 3.35 mm To 101.6 mm OD |
| Sb 444 Uns N06022 Tubing wall thickness | 0.020″ –0.220″, (custom wall thicknesses available) |
| Astm B622 Hastelloy C22 Tubing Swg & Bwg | 12 Swg., 10 Swg., 16 Swg., 14 Swg., 20 Swg., 18 Swg. |
| Tube Length | Standard & Cut length, Double Random, Single Random Tube |
| Types of Hastelloy C22 Tube | ERW, Seamless, Welded, Fabricated, EFW Tube / Tubing |
| Form | ‘ Hollow, U’ bent, LSAW, Hydraulic, Straight Tube, Boiler, Round, Tube Coil, Square, Rectangular Etc |
| Ams 5581 Tubing Finish | AP (Annealed & Pickled), Polished, MF, BA (Bright & Annealed) |
| Marking | All Hastelloy C22 Tubing are marked as follows: Grade, Standard, Thickness, OD, Heat No., Length (Or according to the customer’s request.) |
| NCF 625 tube End | Beveled End, Plain End, Treaded Tube |
| Grade | C | Mn | Si | S | Co | Ni | Cr | Fe | Mo | P |
| C22 | 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 |
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| Hastelloy C22 | 8.69 g/cm3 | 1399 °C (2550 °F) | Psi – 1,00,000 , MPa – 690 | Psi – 45000 , MPa – 310 | 45 % |
At Okoye Nickel Alloys, we take pride in being the largest supplier, exporter, and manufacturer of Hastelloy C22 Tubing in Kinshasa, Congo, providing cutting-edge solutions for all your piping needs. Our state-of-the-art production plants are strategically located in the Congo, allowing us to maintain a vast inventory of over 16,000 tons of premium-quality materials readily available in stock. We are dedicated to delivering superior products and services, ensuring reliability and excellence for our global clientele.
Contact us to get a quick quote for your requirement.
Because of its remarkable resilience, Hastelloy C22 tubing is indispensable in industries where failure is not an option. You’ll find it at the core of chemical processing plants, in critical components for pollution control scrubbers, and throughout sophisticated pharmaceutical manufacturing systems. It’s also a fundamental material in oil and gas production, pulp and paper manufacturing, and industrial wastewater treatment, wherever equipment must endure extremely aggressive chemical conditions and high temperatures.
