17-4 ph Stainless Steel is a precipitation hardening martensitic stainless steel. Typical 17-4 ph 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.

With a high resistance to corrosion, 17-4 PH Stainless Steel is one of the many stainless steel options Altemp Alloys offers. 17-4 PH is an economical alternative to other stainless and strong carbon steels.

Stainless-Steel-17-4-PH
Standards
  • UNS S17400
  • AMS 5643
  • ASTM A564
  • ASTM A693 Grade 630
17-4 PH Stainless Steel Applications
  • Pump Shafts
  • Oil Patch
  • Mechanical Seals
  • Aerospace
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

Mechanical Properties

Material TypeConditionUltimate Tensile Strength (PSI)0.2% Yield Strength (PSI)Elongation (% In 2in.)Reduction Of Area (%)Hardness BrinellHardness Rockwell
17-4 PHH900190,000170,0001040388C40
 H1025155,000145,0001245331C35
 H1075145,000125,0001345311C32
 H1150135,000105,0001650277C28
 H1150-M115,00075,0001855255C24
 H1150-D125,000105,0001650255 min - 311 maxC24 - 33