Product Introduction
CoreMetal’s UNS N02200 (Nickel 200) and UNS N02201 (Nickel 201) seamless pipes and tubes represent the highest purity commercially available nickel, offering exceptional corrosion resistance in alkaline solutions, neutral salts, and non-oxidizing acids. Nickel 200 is ideal for applications up to 315°C (600°F), while Nickel 201 is preferred for service above 315°C due to its lower carbon content preventing graphitization. These pipes are essential for caustic soda production, food processing, synthetic fiber production, and chemical manufacturing.
Key Specifications
| Parameter | Details |
| Standard | ASTM B161, ASTM B163, ASME SB161, SB163 |
| Grades | UNS N02200 (Nickel 200), UNS N02201 (Nickel 201) |
| Carbon Content | N02200: ≤0.15%, N02201: ≤0.02% |
| Pipe OD | NPS 1/8″ – 30″ (10.3mm – 762mm) |
| Tube OD | 4mm – 610mm |
| Wall Thickness | 1.0mm – 30mm (schedule 5S – XXS) |
| Length | Up to 12M, custom lengths available |
| Surface | Annealed & Pickled, Bright Annealed |
| NACE Compliance | NACE MR0175/ISO 15156 compliant (N02201) |
Product Features
✅ Excellent Caustic Soda Resistance – Unrivaled resistance to all concentrations of sodium and potassium hydroxide at temperatures up to 50% NaOH at 145°C.
✅ High Purity Nickel – 99.5%+ nickel content ensures consistent corrosion performance and magnetic properties.
✅ Low Electrical Resistivity – Excellent electrical conductivity for electronic and electrochemical applications.
✅ Non-Magnetic – Permeability <1.005 in annealed condition; suitable for electronic enclosures.
✅ Excellent Thermal Conductivity – Approximately 25% higher than carbon steel; ideal for heat exchange applications.
✅ Good Mechanical Properties – Strength and ductility maintained over wide temperature range from cryogenic to moderate elevated temperatures.
Applications
| Industry | Applications |
| Chlor-Alkali | Chlorine gas handling, caustic soda evaporation, salt splitting cells |
| Chemical Processing | Hydroxide processing, acid neutralization, organic fatty acid production |
| Food Processing | Vegetable oil hydrogenation, food-grade caustic handling |
| Synthetic Fibers | Rayon and nylon production, polymerization vessels |
| Aerospace | Hydraulic fluid reservoirs, missile components |
| Electronics | Semiconductor manufacturing, electrolytic capacitors |
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