NICKEL
Nickel 201 Sheet
Low-Carbon Nickel Sheet for Severe Corrosive Environments
Nickel 201 sheet combines exceptional corrosion resistance with low carbon content to prevent intergranular corrosion. Engineered for demanding applications in chemical processing, petroleum refining, and extreme temperature environments.
Quick Specifications
- Nickel Content
- 99.0% minimum (including cobalt)
- Carbon Content
- 0.02% maximum (critical specification)
- Sheet Thickness Range
- 0.5 mm to 10 mm (standard sizes)
- Tensile Strength (Annealed)
- 380-500 MPa
- Yield Strength (0.2% offset, Annealed)
- 140-280 MPa
- Elongation (Annealed)
- 40% minimum
Standards & Certifications
Product Description
Nickel 201 is a refined variation of commercially pure nickel with significantly reduced carbon content (maximum 0.02% versus 0.08% for standard Nickel 200). This controlled carbon level prevents intergranular corrosion phenomena that can occur in standard nickel when exposed to corrosive attack, particularly in hot acidic environments. The result is a material specifically engineered for severe applications requiring maximum reliability.
The manufacturing process for Nickel 201 sheet involves careful vacuum induction melting and subsequent processing to achieve the stringent carbon specifications. The sheet stock is produced through hot rolling and controlled cooling to develop optimal grain structure and microhardness. Available in various thicknesses from 0.5 mm to 10 mm, the material can be supplied in annealed condition or precipitation-hardened states depending on application requirements.
Nickel 201 sheet exhibits outstanding resistance to hydrofluoric acid, sulfuric acid, and alkaline solutions. It is particularly valued in applications involving concentrated acids at elevated temperatures, where the low carbon content prevents the localized corrosion failures that plague standard commercial nickel grades. The material maintains excellent mechanical properties across a broad temperature range from cryogenic levels to approximately 500°C.
Industries relying on Nickel 201 sheet include petroleum refining, chemical manufacturing, synthetic fiber production, and advanced food processing. The material is also employed in pharmaceutical manufacturing where contamination control is paramount. Its combination of corrosion resistance, mechanical reliability, and material purity makes it the preferred choice for engineering professionals seeking uncompromised performance.
Specifications
| Nickel Content | 99.0% minimum (including cobalt) |
| Carbon Content | 0.02% maximum (critical specification) |
| Sheet Thickness Range | 0.5 mm to 10 mm (standard sizes) |
| Tensile Strength (Annealed) | 380-500 MPa |
| Yield Strength (0.2% offset, Annealed) | 140-280 MPa |
| Elongation (Annealed) | 40% minimum |
| Melting Point | 1453°C (2648°F) |
| Density | 8.89 g/cm³ |
| Thermal Conductivity | 90.9 W/m·K at 27°C |
| Electrical Resistivity | 6.84 × 10⁻⁸ Ω·m at 20°C |
| Thermal Expansion Coefficient | 13.3 × 10⁻⁶/K (20-100°C) |
Chemical Composition
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 99.0 (min) |
| Cobalt (Co) | 0.25 (max, included in Ni total) |
| Carbon (C) | 0.02 (max) - LOW CARBON SPECIFICATION |
| Iron (Fe) | 0.15 (max) |
| Copper (Cu) | 0.10 (max) |
| Manganese (Mn) | 0.010 (max) |
| Sulfur (S) | 0.010 (max) |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength (Cold Rolled, Half Hard) | 550-700 MPa |
| Yield Strength - Half Hard (0.2% offset) | 380-480 MPa |
| Elongation - Half Hard | 15-25% |
| Hardness (Annealed, HV) | 90-130 |
| Hardness (Half Hard, HV) | 200-250 |
| Modulus of Elasticity | 207 GPa |
| Impact Strength (Charpy, annealed) | 95+ J |
| Fatigue Strength (10⁷ cycles) | 180-200 MPa |
Key Features & Advantages
Applications
Petroleum Refining Equipment
Specified for critical components in crude oil processing units, heat exchangers, and distillation equipment where resistance to corrosive hydrocarbon streams and sulfidic compounds is essential for operational continuity.
Chemical Manufacturing Vessels
Utilized for construction of reaction vessels, storage tanks, and piping systems handling concentrated acids, alkaline solutions, and specialized chemical products. The low carbon content ensures reliability in corrosion-critical applications.
Synthetic Fiber and Textile Processing
Employed in manufacturing equipment and process vessels for synthetic fiber production where chemical resistance and material cleanliness are paramount for product quality and yield optimization.
Food and Beverage Processing
Used in equipment for advanced food processing operations where material purity and non-contamination are regulatory requirements. The material's biocompatibility and corrosion resistance ensure food safety and equipment reliability.
Pharmaceutical Manufacturing
Specified for reactor vessels, heat exchangers, and process piping in pharmaceutical synthesis where material purity directly impacts product quality and regulatory compliance.
Environmental and Water Treatment
Applied in desalination equipment, wastewater treatment vessels, and water purification systems where long-term corrosion resistance in harsh aqueous environments is critical for system performance.
Frequently Asked Questions
Why is the low carbon content so important in Nickel 201?
How does Nickel 201 compare to Nickel 200 in corrosive applications?
Is Nickel 201 sheet available with surface finish specifications?
What are the fabrication considerations for Nickel 201 sheet?
How long is the typical delivery time for Nickel 201 sheet stock?
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