17-4 PH Stainless Steel

17-4 ph stainless steel

17-4 PH Stainless Steel is a precipitation hardening martensitic stainless steel. Typical usage is seen in applications requiring high strength and a modest level of corrosion resistance. Strength and toughness desired can be manipulated by temperate range in the heat treatment process.

Below you will find typical applications of 17-4 PH stainless steel as well as the metals composition and mechanical properties. Learn more about or value added services that we offer to help you expedite the current job you have at hand.

Best Stainless offers high quality standards including: UNS S17400, AMS 5643, ASTM A564, and ASTM A693 Grade 630.

17-4 PH stainless steel can be used for a variety of applications including: pump shafts, oil path, mechanical seals, and within the aerospace industry. Its composition is carbon, chromium, columbian + tantalum, copper, manganese, nickel, phosphorous, silicon, and sulfur.

17-4 ph Applications

17-4 ph Standards

  • UNS S17400
  • AMS 5643
  • ASTM A564
  • ASTM A693 Grade 630

17-4 ph Composition(%)

  • Carbon 0.070 max
  • Chromium 15.00 - 17.50
  • Columbian + Tantalum 0.15 - 0.45
  • Copper 3.00 - 5.00
  • Manganese1.00 max
  • Nickel 3.00 - 5.00
  • Phosphorus 0.040 max
  • Silicon 1.00 max
  • Sulfur 0.030 max

17-4 PH Stainless Steel Mechanical Properties

Material Type Condition Ultimate Tensile Strength (PSI) 0.2% Yield Strength (PSI) Elongation (% In 2in.) Reduction Of Area (%) Hardness Brinell Hardness Rockwell
17-4 PH H900 190,000 170,000 10 40 388 C40
  H1025 155,000 145,000 12 45 331 C35
  H1075 145,000 125,000 13 45 311 C32
  H1150 135,000 105,000 16 50 277 C28
  H1150-M 115,000 75,000 18 55 255 C24
  H1150-D 125,000 105,000 16 50 255 min - 311 max C24 - 33

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