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1.4542 P1070

1.4542 P1070 is a precipitation hardening stainless steel condition commonly specified when high strength, corrosion resistance, and reliable mechanical performance are required.

The material is the European designation for 17-4 PH stainless steel and is widely used throughout aerospace, medical, energy, and industrial manufacturing sectors.

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What Is 1.4542 P1070?

1.4542 is the EN designation for 17-4 PH stainless steel.

P1070 refers to a mechanical property condition providing approximately 1070 MPa minimum yield strength.

Equivalent designations may include:

  • 17-4 PH Stainless Steel
  • AMS 5643
  • UNS S17400
  • X5CrNiCuNb16-4

Why Engineers Specify 1.4542 P1070

Manufacturers choose 1.4542 P1070 because it provides:

  • High strength
  • Excellent corrosion resistance
  • Good machinability
  • Reliable dimensional stability
  • Heat treatment capability

Common Applications

1.4542 P1070 is commonly used for:

  • Aerospace shafts
  • Medical instruments
  • Valve components
  • Pump shafts
  • Precision machined parts
  • Structural components

Available Product Forms

  • Round Bar
  • Precision Ground Bar
  • Centerless Ground Bar
  • Flat Bar
  • Plate
  • Sheet
  • Forgings

1.4542 P1070 vs 17-4 PH

1.4542 P1070 and 17-4 PH refer to the same base alloy family.

The primary difference is the use of European mechanical property designations rather than the more common North American heat treatment terminology.

Related Grades

  • 1.4542 P800
  • 1.4542 P960
  • 1.4542 P1200
  • 1.4542 P1300
  • 17-4 PH AMS 5643

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