AMS 6491 stands as a crucial aerospace material specification for premium-grade stainless steel bars and wire. This versatile alloy brings together strength and corrosion resistance for demanding applications across multiple industries.

Key Properties

The steel grade delivers impressive mechanical properties at both room and elevated temperatures. Its high chromium content creates exceptional resistance to oxidation and corrosion. The material maintains stability even under significant stress, making it ideal for critical components.

Its unique composition offers:

  • Superior tensile strength
  • Excellent fatigue resistance
  • Outstanding thermal stability
  • Remarkable corrosion protection
  • Enhanced wear resistance

Common Applications

Aerospace leads the way in AMS 6491 usage. The material excels in:

  • Aircraft engine components
  • Fasteners and bolts
  • Critical structural elements
  • High-temperature applications
  • Landing gear parts

Beyond aerospace, you’ll find it in:

  • Precision manufacturing
  • Medical instruments
  • Power generation equipment
  • Marine components
  • High-stress industrial machinery

Manufacturing Considerations

Working with AMS 6491 needs careful attention to detail. The material responds well to:

  • Heat treatment
  • Machining with appropriate tooling
  • Cold working processes
  • Surface finishing techniques
  • Precision grinding

Temperature control during processing proves essential for optimal results. Proper heat treatment unlocks the full potential of its mechanical properties. Each manufacturing step requires careful monitoring to maintain material integrity.

Quality Standards

Strict testing ensures each batch meets aerospace requirements. Key checks include:

  • Chemical composition analysis
  • Mechanical properties verification
  • Grain structure examination
  • Surface quality inspection
  • Non-destructive testing

Market Availability and Cost Factors

UK suppliers stock various forms:

  • Round bars in multiple diameters
  • Wire for specialist applications
  • Forged components to specification
  • Custom shapes upon request

Price points reflect the material’s premium nature. Main cost drivers include:

  • Raw material prices
  • Processing requirements
  • Order quantity
  • Form factor
  • Quality certification needs

The right supplier partnership ensures reliable access to this vital material while maintaining quality and cost control. Regular market assessment helps optimise procurement strategies.