Supreme Corrosion Resistance and Non-Magnetic Properties

Metal Finishing Group provides Electroless Nickel High-Phos plating services, applying a uniform, autocatalytic nickel-phosphorus alloy coating with exceptional corrosion resistance. This process, unlike electrolytic plating, requires no external electrical current, ensuring a consistent and even deposit even on the most intricate geometries. High-phosphorus electroless nickel stands out for its superior protection against aggressive corrosive environments and its non-magnetic characteristics.

Electroless Nickel High-Phos is chosen when components demand the highest level of corrosion protection, especially in acidic or harsh chemical conditions. It is also the ideal solution for applications where non-magnetic properties are critical, such as in sensitive electronic or aerospace instruments. This advanced finish provides a dense, amorphous layer crucial for extending the life and reliability of parts in the most challenging environments.

Our Electroless Nickel High-Phos Capabilities: Maximum Protection and Precision

We offer precise Electroless Nickel High-Phos plating services, ensuring a uniform and high-quality deposit for your critical components.

  • Autocatalytic Deposition: Ensures an even coating thickness over all surfaces, regardless of part geometry, edges, or recesses.
  • High Phosphorus Content: Achieves a phosphorus content typically ranging from 10.5% to 12.5% by weight, optimizing for maximum corrosion resistance and non-magnetic properties.
  • Superior Corrosion Resistance: Provides outstanding protection against strong acids, salts, and other aggressive corrosive media.
  • Non-Magnetic: The high phosphorus content renders the coating non-magnetic in its as-plated condition, crucial for sensitive instrumentation.
  • Amorphous Structure: The coating’s unique amorphous (glass-like) structure contributes to its exceptional corrosion barrier.
  • Wear Resistance (Post Heat Treat): While softer as-plated, hardness can be significantly increased with proper post-plate heat treatment.
  • Diverse Substrate Compatibility: Can be applied to steel, stainless steel, aluminum, copper, brass, and other alloys.
  • Precision Thickness Control: We achieve exacting plating thicknesses to meet specific design and performance requirements.
  • In-house Quality Verification: We conduct adhesion, thickness, and corrosion testing (e.g., salt spray testing) to ensure coating integrity and compliance.

Properties of Electroless Nickel High-Phos:

Electroless Nickel High-Phos imparts several key properties that ensure the highest level of performance and longevity for components:

  • Exceptional Corrosion Protection: Forms a superior barrier against a wide range of highly corrosive chemicals and environments, surpassing other EN variations.
  • Non-Magnetic Performance: The high phosphorus content ensures the coating remains non-magnetic, essential for sensitive electronic and measurement devices.
  • Uniform Coating Thickness: Ensures consistent coverage even on complex shapes, eliminating issues common with electroplating.
  • Amorphous Structure: The non-crystalline nature of the coating enhances its barrier properties and resistance to pitting.
  • Improved Ductility: Offers more ductility compared to mid-phos EN, which can be beneficial in certain applications.
  • Increased Hardness (Post Heat Treat): Although softer as-plated, heat treatment significantly increases its hardness and wear resistance.

Applicable Specifications We Adhere To:

Our Electroless Nickel High-Phos processes consistently meet or exceed crucial industry standards, ensuring the quality and performance of your components. We regularly process to:

  • ASTM B733 (Standard Specification for Autocatalytic (Electroless) Nickel-Phosphorus Coatings on Metals)
  • MIL-C-26074 (Type V – High Phosphorus, though largely superseded by ASTM B733, still referenced)
  • AMS 2404 (Electroless Nickel Plating, High Phosphorus)
  • And various customer-specific requirements.

Typical Electroless Nickel High-Phos Applications:

Electroless Nickel High-Phos is vital for numerous applications across demanding industries where ultimate protection and specific functional properties are required:

  • Chemical Processing: Used for valves, pumps, fittings, and containers exposed to aggressive chemicals.
  • Oil & Gas: Applied to downhole tools, valves, and components in highly corrosive well environments.
  • Electronics and Semiconductors: Protects sensitive instruments, hard drive components, and connectors requiring non-magnetic properties and corrosion resistance.
  • Aerospace: Used for precision components where uniform coverage, corrosion protection, and non-magnetism are critical.
  • Medical Devices: Applied to instruments and equipment requiring high corrosion resistance and cleanliness.
  • Food Processing Equipment: Provides a durable, corrosion-resistant, and easy-to-clean surface for food contact.
  • Marine: Protects components exposed to saltwater and other harsh marine conditions.

Why Choose Metal Finishing Group for Electroless Nickel High-Phos?

Metal Finishing Group is a trusted partner for high-quality Electroless Nickel High-Phos plating. Our commitment to precise application and rigorous quality control ensures a superior, uniform, and exceptionally corrosion-resistant finish for your most challenging components. Partner with us for reliable metal finishing solutions that provide maximum protection and meet your exact functional specifications.