Product Introduction
CoreMetal’s seamless nickel alloy pipes and tubes in grades N08020, N08026, and N08024 are designed for highly corrosive environments where standard stainless steels fail. These nitrogen-strengthened alloys offer exceptional resistance to sulfuric acid, phosphoric acid, and chloride-induced stress corrosion cracking. Widely used in chemical processing, pollution control, food processing, and pulp & paper industries, these tubes provide reliable, long-term performance in the most demanding applications.
Key Specifications
| Parameter | Details |
| Standard | ASTM B729, ASTM B468, ASME SB729 |
| Grades | UNS N08020 (Alloy 20), UNS N08026 (Alloy 20CB-3), UNS N08024 |
| Pipe OD | 10.3mm – 219.1mm (1/8″ – 8″NPS) |
| Tube OD | 9.53mm – 152.4mm (3/8″ – 6″) |
| Wall Thickness | 1.0mm – 20mm (schedule 10S – 160S) |
| Length | Up to 12M, or custom |
| Surface | Annealed & Pickled, Bright Annealed |
| Test | Hydrostatic, Eddy Current, Ultrasonic |
Product Features
✅ Superior Acid Resistance – Excellent resistance to sulfuric acid at all concentrations and temperatures up to 50% concentration.
✅ Chloride Stress Corrosion Cracking Resistant – Nitrogen strengthening provides protection against SCC in chloride-containing environments.
✅ Excellent Fabricability – Can be readily formed, machined, and welded using conventional techniques.
✅ High Strength – Solution-strengthened structure maintains strength at elevated temperatures.
✅ Intergranular Corrosion Resistant – Low carbon content and niobium stabilization prevent sensitization.
✅ Versatile Applications – Suitable for both oxidizing and reducing acid environments.
Applications
| Industry | Applications |
| Chemical Processing | Sulfuric acid handling, phosphate processing, pickling equipment |
| Pollution Control | Flue gas desulfurization, scrubber systems |
| Food & Beverage | Food processing equipment, brewing systems |
| Pulp & Paper | Bleaching systems, black liquor handling |
| Pharmaceutical | API synthesis vessels, process piping |
| Oil & Gas | Sour gas handling, refinery process units |
Hot Tags
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