Alloy 17-4 PH 

Alloy 17-4 PH is a high strength stainless steel with good hardness and modest corrosion resistance properties, used widely in marine, food processing and petrochemical industries.

We offer 17-4 PH to 1150D; double aged to provide higher tensile strength properties, in sizes 19.05mm dia – 171 mm dia

  • ASTM A564 type 630
  • AMS 5604
  • UNS S17400
  • EURONORM 1.4542 X5CrNiCuNb 16-4
  • AFNOR Z5 CNU 17-4PH
  • DIN 1.4542

In addition to this specification all requirements of current edition of specification A484/A484M apply.

Fully certified material, additional testing available

UK, US and European origin unless otherwise stated

Same day quote, next day dispatch

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17-4 PH Mechanical Data

ConditionUltimate Tensile Strength (PSI)0.2% Yield
Strength (PSI)
(% In 50mm.)
Reduction Of
Area (%)
Brinell HB
Hardness Rockwell
1650280 - 31129-33

17-4 PH Chemical Composition

17-4 PH H115015.0 - 17.53.0 - - 5.00.15 - 0.45

For more technical information download our 17-4 PH information sheet here


Alloy 17-PH is used extensively in marine environments and in chemical, petrochemical, paper and food processing industries.

End product uses include:

  • manufacturing pump shafts
  • valve stems
  • hydraulic fittings
  • studs
  • fasteners
  • couplings
  • rollers
  • food handling equipment.

“We are not the biggest steel distributor around, but have differentiated ourselves by focusing on service, reliability and trying to find ways of helping customers rather than by just supplying metal – conversion, holding specific stock for quick delivery and consignment stock”

Mike Andrews

Proud associates