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SS 17-4PH Round Bar

SS 17-4 PH Round barsSS 17-4 PH Round bars is a chromium-copper precipitation hardening stainless steel that is commonly used in various applications that require high strength (maintained approximately 316 degrees Celsius) and corrosion resistance properties.


Product Specifications

Specifications Properties
Standard ASTM / ASME SA A582, A276, A564, ASTM A484
Stainless Steel 17-4PH Round Bars Outside Diameter in the range of 4mm to 500mm
Stainless Steel 17-4PH Bright Bars Outside Diameter in the range of 4mm to 100m
Stainless Steel 17-4PH Hex Bars 18mm – 57mm (11/16″ to 2-3/4″)
Stainless Steel 17-4PH Square Bars 18mm – 47mm (11/16″ to 1-3/4″)
Stainless Steel 17-4PH Flats 1/2” to 10” in thickness range of 2mm to 150mm, Custom Size Stainless Steel Flats available
Finish Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form Round, Square, Hex (A/F), Rectangle, Billet, Ingot, Forging Etc.
Length 1 to 6 Meters, Custom Cut Lengths

Chemical Properties

Element SS 17-4PH
Ni 5.0 Max
C 0.7 Max
Cb+Ta 0.45 Max
Mn 1.00 Max
P 0.07 Max
S 0.03 Max
Si 1.0 Max
Cr 17.5
Cu 4.0
Mo 0.05
Fe Balanced

Mechanical Properties

Element SS 17-4PH
Melting Point 1510 °C (2750 °F)
Tensile Strength min 160,000
Yield Strength 145,000
Elongation min 5%


  • Exhaust Systems and Manifolds
  • Heat Exchangers
  • Bellows
  • Oil Refinery Equipment
  • Furnace Parts and Firewalls
  • Automotive
  • Chemical


  • High tensile strength and toughness
  • Excellent corrosion resistance
  • It is best suited for forging and welding
  • Machinability operations
  • Oxidation resistance
  • Have a good resistance to sulphide stress cracking