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17-4PH Steel Bars Precision CNC Machining

Stainless Steel Bar
January 13, 2026
Category Connection: Stainless Steel Bar
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Tags:
#Bright Round Bar #Stainless Steel Rod #Stainless Steel Round Bar
Brief: See how this offering can bring practical value to common tasks and projects. In this video, we demonstrate the precision CNC machining of heat-treated 17-4PH stainless steel round bars. You'll learn how their ultra-tight tolerance of ±0.05mm and optimized H1150 heat treatment ensure exceptional strength and corrosion resistance for aerospace, medical, and automotive applications, minimizing post-machining work.
Related Product Features:
  • Precision-engineered for CNC machining with an ultra-tight diameter tolerance of ±0.05mm.
  • Heat-treated to H1150 condition achieving a hardness of 38-42 HRC for superior strength.
  • Exceptional corrosion and wear resistance due to chromium and copper additions.
  • High tensile strength of ≥1310 MPa, ideal for high-stress environments.
  • Compliant with aerospace standards including AMS 5643 and optional Nadcap certification.
  • Smooth turned or ground surface finish (Ra ≤1.6μm) to minimize post-machining work.
  • Suitable for critical applications in aerospace, medical devices, and automotive sectors.
  • Available in custom diameters from 5mm to 100mm with optional finishing services.
FAQs:
  • What are the key applications for 17-4PH stainless steel bars?
    These bars are ideal for aerospace components like landing gear and turbine blades, medical devices such as surgical instruments, automotive parts including fuel injectors, and critical energy and defense applications due to their high strength and corrosion resistance.
  • What certifications does this material comply with?
    The 17-4PH bars comply with AMS 5643, ASTM A564, and ISO 4954 standards, with optional Nadcap certification available to ensure material traceability and consistency for critical projects.
  • How does the heat treatment benefit the material properties?
    The solution annealing and H1150 aging heat treatment optimizes mechanical properties, achieving a hardness of 38-42 HRC and enhancing strength and corrosion resistance while maintaining dimensional stability for precision machining.
  • What is the tolerance and surface finish of these steel bars?
    The bars feature an ultra-tight diameter tolerance of ±0.05mm and a smooth turned or ground surface finish with Ra ≤1.6μm, reducing the need for additional machining and ensuring seamless integration into components.
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