High Ductility and Low Internal Stress for Critical Components

Metal Finishing Group provides Sulfamate Nickel Plating services, applying a pure, highly ductile nickel coating with very low internal stress. This specialized electroplating process uses a nickel sulfamate electrolyte, which is distinct from traditional sulfate or chloride nickel baths, allowing for the deposition of thick, non-stressed layers crucial for demanding engineering applications.

Sulfamate nickel plating is chosen when components require a high-purity nickel deposit that will not induce stress into the base material, or when subsequent forming, bending, or machining operations are necessary. It is ideal for salvage and repair, aerospace components, and applications where dimensional stability and fatigue strength are paramount. This unique finish offers excellent corrosion protection and good wear resistance.

Our Sulfamate Nickel Plating Capabilities: Precision and Performance

We offer precise Sulfamate Nickel Plating services, ensuring a uniform and high-quality deposit for your critical components.

  • Low Internal Stress: The primary advantage of sulfamate nickel, preventing distortion of parts and maintaining mechanical integrity.
  • High Ductility: The deposited nickel layer is exceptionally ductile, allowing for post-plating forming, crimping, or bending without cracking.
  • High Purity Deposit: Produces a very pure nickel coating, which contributes to its performance characteristics.
  • Good Hardness and Wear Resistance: Offers excellent as-plated hardness, which can be further enhanced with heat treatment for increased wear resistance.
  • Superior Corrosion Protection: Provides a robust barrier against various corrosive environments, protecting the underlying substrate.
  • Excellent Machinability: The low-stress and ductile nature of the deposit makes it easy to machine or grind after plating.
  • Thickness Versatility: Capable of depositing a wide range of thicknesses, from very thin layers to significant build-ups for salvage operations.
  • Rack Plating: We primarily use rack plating to ensure precise control and uniform deposition for complex parts.
  • Diverse Substrate Compatibility: Can be applied to steel, stainless steel, copper, brass, and other alloys.
  • In-house Quality Verification: We conduct adhesion, thickness, and stress testing to ensure coating integrity and compliance.

Properties of Sulfamate Nickel Plating:

Sulfamate nickel plating imparts several key properties that ensure the highest level of performance and reliability for components:

  • Minimizes Part Distortion: The low internal stress of the deposit prevents warping or deformation of delicate or precision components.
  • Enhanced Fatigue Life: Avoids stress concentrations that can reduce the fatigue life of base materials.
  • Superior Adhesion: Forms a strong, reliable bond to the substrate.
  • Good Electrical Conductivity: Offers favorable electrical properties for many applications.
  • Magnetic Properties: The deposit is magnetic, a characteristic to consider for certain applications.
  • Thermal Stability: Maintains integrity at elevated temperatures.

Applicable Specifications We Adhere To:

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

  • AMS 2403 (Nickel Plating, General Purpose)
  • AMS 2424 (Nickel Plating, Low-Stressed, Electrodeposited)
  • QQ-N-290 (Nickel Plating (Electrodeposited))
  • ASTM B689 (Standard Specification for Electroplated Engineering Nickel Coatings)
  • And various customer-specific requirements.

Typical Sulfamate Nickel Plating Applications:

Sulfamate nickel plating is vital for numerous applications across demanding industries where stress control and ductility are critical:

  • Aerospace Industry: Used for turbine blades, engine components, landing gear parts, and other flight-critical components requiring dimensional stability.
  • Salvage and Repair: Ideal for restoring worn or undersized parts to original dimensions due to its ability to build up thick, low-stress deposits.
  • Ordnance: Applied to components requiring high ductility and low stress for explosive forming or other demanding operations.
  • Electronic Connectors: Provides a durable, conductive, and ductile surface for connectors that undergo repeated mating cycles.
  • Tooling and Molds: Enhances wear resistance and provides an easy-to-machine surface.
  • Printing Industry: Used for rotogravure rolls due to its ability to be precisely machined.
  • Fuel Cells and Batteries: Applied to components for corrosion resistance and conductivity.

Why Choose Metal Finishing Group for Sulfamate Nickel Plating?

Metal Finishing Group is a trusted partner for high-quality Sulfamate Nickel Plating services. Our commitment to precise application and rigorous process control ensures a low-stress, highly ductile, and durable finish for your most critical components. Partner with us for reliable metal finishing solutions that enhance the longevity and performance of your parts without compromise.