Machining Stainless 15-5 PH | Machined 15-5 PH Parts | Penta Precision       +44 (0) 2392 668 334

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Stainless Steel 15-5 PH Machined Parts

A Guide to 15-5 PH CNC Milled & Turned Parts

What is 15-5 PH?

15/5 PH is a modification of 17/4 PH; a precipitation hardening stainless steel with the optimal combination of the properties of martensitic and austenitic grades. It has the high strength from martensitic grades (gained through heat treatment) and the corrosion resistance of austenitic grades.

Heat treated conditions:

  • Condition H900 (900°F)
  • Condition H925 (925°F)
  • Condition H1025 (1025°F)
  • Condition H1075 (1075°F)
  • Condition H1100 (1100°F)
  • Condition H1150 (1150°F)

Main Attributes of 15-5 PH:

  • High strength after heat treatment
  • Good corrosion resistance
  • Good mechanical properties at temperatures up to 316°C
  • Excellent mechanical properties
  • Good welding characteristics

15-5 PH Machinability


Need a part machined by an experienced and reliable components manufacturer? Simply complete our short form to receive your no obligation quotation.

15-5 PH has reasonable machinability. It can be machined in the solution-annealed state or in final heat treated condition.

Similar or obsolete designation and trade names

You may also see 15-5 PH referred to as:

15-5 PH Components, Applications & Industries

Here are some examples of the industries and components for which 15-5 PH is appropriate. This is by no means an exhaustive list. Please do get in touch if you are considering using 15-5 PH and we can talk through your project with you.

Typical Components & Applications:
  • Gears
  • Valves
  • Shafts
  • Fitting & fasteners
  • Pump parts
  • Structural components
  • Engine parts
  • Instrumentation
Industry Examples:
  • Aerospace
  • Nuclear
  • Oil & Gas
  • Renewable energy
  • Food processing
  • Petrochemical
  • Marine

    15-5 PH Machining Service - 15-5 PH Milling & Turning

    Penta Precision provides highly accurate 15-6 PH machined parts. Customers turn to us when they have had quality and delivery issues with their existing suppliers and need a reliable precision machining partner.

    Penta Precision provides the following 15-5 PH machining services: 

    • CNC milling – prototypes & large batch runs
    • CNC turning – prototypes & large batch runs
    • Insert installation
    • Part marking
    • Manual milling
    • Manual turning
    • Machining design advice
    • Machining drawing service

    Reasons to Choose Penta:

    • ISO 9001:2015 quality assurance
    • Consistent high quality machined parts
    • Reliable delivery dates - our track record speaks volumes
    • Exceptional customer service and communication
    • Machining design advice
    • Extensive experience in our field
    What Makes Penta Different?

    There are 3 key elements that run through the core of our company and staff at every level to ensure we deliver an exemplary service that goes above and beyond. We like to call these our 3 C's:

    • We Communicate well 
    • We take Care at each stage
    • Our service is Consistent

    See our ‘Proven Process’ page to find out more

    We are regularly machining 15-5 PH for customers all over the UK. Our customers depend on our machining expertise as well as our outstanding delivery performance, to machine the highest quality parts. If you'd like to discuss how we can help you with your 15-5 PH machining requirements, here's a list of ways to get in touch with us.

    Can we meet your
    15-5 PH machining needs?
    Call our engineering team on
    +44 (0) 23 9266 8334
    or contact us via our email form

    “Penta provide an excellent service to us. They offer a helpful, professional and friendly service. I would recommend anyone looking for sub-contracting machining use them '' Peter - Business Development Manager 

    Tel: +44 (0) 2392 668 334

    Fax: +44 (0) 2392 668 335

    Connect with us:

    Penta Precision Engineering Ltd

    Aspen House

    Airport Service Road



    PO3 5RA

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