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Armoloy Specifications

AMS 2403

Electrodeposited Nickel Plating Specification

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Armoloy Specifications

What is AMS 2403?

AMS 2403 is an SAE Aerospace Material Specification (AMS) that defines the requirements for electrodeposited nickel plating. This process enhances corrosion resistance and surface durability, making it essential for aerospace, automotive, and industrial applications.

As a general-purpose standard, AMS 2403 outlines stress relief, surface preparation, plating thickness, and quality control to ensure consistent, high-quality results. It covers everything from flash plating to uniform nickel deposits, balancing functionality with precision.

By following AMS 2403, manufacturers ensure durable, oxidation-resistant coatings that meet industry performance standards.
AMS 2403 electrodeposited nickel plating on motorcycle exhaust

The Role of AMS 2403 in Electrodeposited Nickel Plating

AMS 2403 sets uniform standards for electrodeposited nickel plating to support precision, quality, and consistency across industries. Its key roles include:

  • Detailed Plating Guidelines: Specifies thickness, stress relief, and surface preparation requirements for consistent, high-quality results.
  • Support for Tight Tolerances: Helps manufacturers meet exact dimensional and performance specs in high-precision applications.
  • Driving Quality Control: Requires strict testing protocols to verify plating durability and performance.
  • Application Versatility: Makes it easier to use nickel plating across different metals and industries with one clear standard.

AMS 2403 sets the foundation for nickel plating processes that meet modern manufacturing and global industry standards.

AMS 2403 Testing Methodology and Results

AMS 2403 establishes test methods to ensure nickel coatings perform as intended across industries. Key tests include:

  1. Preparation of Test Specimens: Select and clean representative samples to remove contaminants before testing.
  2. Thickness Measurement: Cross-sectioning, X-ray fluorescence, and coulometric tests confirm precise coating thickness.
  3. Adhesion Test: Bend and thermal shock tests ensure the coating securely bonds to the substrate.
  4. Corrosion Resistance Test: Salt spray tests evaluate protection against oxidation and environmental exposure.
  5. Hydrogen Embrittlement Relief: High-strength steel parts undergo baking treatments to prevent embrittlement.
  6. Stress Relief Treatment: Hardened parts (>40 HRC) are heat-treated before plating to prevent cracking.
  7. Visual Inspection: Surfaces are examined for uniformity, smoothness, and defects.

These tests confirm that AMS 2403-compliant coatings deliver reliable protection and long-term performance.

Automation robot building circuit boards

Industries That Use AMS 2403

AMS 2403 is widely used in industries where nickel plating enhances corrosion resistance and functionality, including:

  • Aerospace: Protects fasteners, brackets, and housings from corrosion and wear in extreme conditions.
  • Automotive: Provides long-lasting, high-quality finishes for trim, emblems, and engine components.
  • Defense: Shields military vehicle parts, weapon systems, and electronics from corrosion and degradation.
  • Medical Devices: Ensures biocompatibility and durability in instruments, implants, and diagnostic tools.
  • Semiconductors: Enhances conductivity and corrosion protection for connectors, contacts, and housings.

These industries rely on AMS 2403 to support critical applications across demanding environments.

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Benefits of Working with an AMS 2403 Provider

Certified Quality Assurance

AMS 2403 providers guarantee that nickel-plated components meet stringent performance, durability, and corrosion resistance standards

Reliable, Consistent Results

Maintains uniform plating thickness and precise surface finishes across every batch

Regulatory Compliance

Certified providers ensure that parts meet AMS and ASTM standards in alignment with industry regulations

Expert Technical Support

Specialists assist with material selection and design optimization for specific applications

Enhanced Process Control

Strict oversight of plating methods and materials guarantees reliable outcomes

Tailored Solutions

Providers can customize plating solutions for unique industry and application needs

Comprehensive Documentation

Certified providers maintain detailed records to support traceability, audits, and compliance requirements

Optimized Performance

Plated components deliver consistent performance, minimizing the risk of failure and reducing maintenance costs

Specifications at Armoloy

Armoloy offers plating solutions that meet AMS 2403 to support both regulatory compliance and individual project needs. Explore common specifications and accreditations we work with, and contact us to find the right solution for your application.