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Armoloy Specifications

AMS 2406

Electrodeposited Hard Chrome Specification

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Armoloy Specifications

What is AMS 2406?

AMS 2406 is the industry standard for electrodeposited hard chromium plating, defining thickness, hardness, adhesion, and uniformity requirements. Developed by the SAE Aerospace Material Specifications (AMS) Committee, it ensures plated components deliver lasting performance in demanding applications.

Initially designed for aerospace components, AMS 2406 has become a trusted reference for industries requiring hard chrome plating to enhance tool and die life, maintain gauge accuracy, and restore worn or undersized parts. It emphasizes functional attributes, focusing on coating quality and performance rather than appearance.

By adhering to AMS 2406, manufacturers achieve optimized plating performance, which supports applications requiring enhanced abrasion resistance, extended component life, and consistent reliability. This standard provides a benchmark for ensuring that hard chrome-plated components meet or exceed stringent industry expectations.
airplane landing gear closeup plated with AMS 2406 compliant Armoloy chrome

The Role of AMS 2406 in Hard Chromium Plating

AMS 2406 establishes a structured framework for producing high-quality hard chrome coatings. Its key roles include:

  1. Defining Quality Standards: Sets requirements for thickness, hardness, and adhesion to ensure consistent plating performance.
  2. Enhancing Wear Resistance: Supports coatings with low friction, anti-galling properties, and extended durability for demanding applications.
  3. Mandating Testing: Requires thickness measurements, adhesion tests, and other evaluations to verify coating integrity.
  4. Promoting Industry Compliance: Aligns with aerospace, automotive, and defense regulations, streamlining certification processes.

AMS 2406 provides a clear roadmap for achieving durable, high-performing hard chrome coatings used in mission-critical applications.

AMS 2406 testing methodology hard chrome plating bend test at Armoloy Laboratory

AMS 2406 Testing Methodology & Results

AMS 2406 mandates the following tests to confirm that hard chromium plating meets high standards for quality and performance:

  1. Hardness Test: Evaluates the coating’s resistance to wear and deformation.
  2. Adhesion Test: Verifies the coating is securely bonded to the substrate.
  3. Corrosion Resistance Test: Tests the coating’s ability to handle corrosive environments.
  4. Thickness Test: Confirms the plating meets the required thickness for durability.
  5. Hydrogen Embrittlement Test: Ensures the plating process doesn’t weaken the component.
  6. Visual Inspection: Ensures the coating is smooth and evenly applied

These tests guarantee that AMS-compliant coatings deliver reliable performance in demanding conditions.

various machined components that require AMS 2406 hard chrome plating standard for operation

Industries that Use AMS 2406

AMS standards are essential for industries that require durable, high-performance hard chromium plating. Key sectors include:

    • Aerospace: Used for landing gear, engine parts, and hydraulic systems to improve wear resistance and reliability.
    • Automotive: Enhances engine parts, transmission components, and hydraulic cylinders for longer service life.
    • Oil and Gas: Protects drilling equipment, valves, and pumps from wear and corrosion in harsh environments.
    • Defense Ensures durability and precision in military hardware and weaponry.
    • Machinery Used for hydraulic cylinders, mining equipment, and construction machinery subject to heavy wear and tear.

    These industries depend on AMS 2406 in applications that require high wear resistance, low friction, and anti-galling properties.

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Benefits of Working with an AMS 2406 Provider

Reliable Quality

Components are plated to thickness, hardness, and adhesion standards, ensuring consistent durability and performance

Extended Component Life

Coatings resist wear and corrosion, reducing maintenance and replacement costs

Industry Compliance

Certification guarantees adherence to recognized benchmarks, meeting regulatory and customer expectations

Thorough Testing

Providers follow rigorous testing procedures, minimizing defects and ensuring reliable results

Custom Solutions

AMS 2406 providers can tailor plating processes to meet specific industry needs

Detailed Documentation

Providers maintain records for traceability, supporting audits and compliance requirements

Proven Expertise

Certified providers bring specialized knowledge and experience to deliver high-quality results, fostering long-term partnerships and customer confidence

Enhanced Performance

Components plated to AMS 2406 standards exhibit superior abrasion resistance, low friction, and anti-galling properties

Specifications at Armoloy

Armoloy offers plating solutions that meet AMS 2406 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.