MECHANICAL-PROPERTY DATA HP 9NI-4CO-45C STEEL. TEMPERED FORGING

Abstract

The HP 9-4-45 alloy is a nickel-cobalt steel developed specifically to have high hardenability and good toughness. A quench and temper heat treatment may be used for sheet and thin sections to produce a tempered martensitic structure. An alternate heat treatment that results in a bainitic structure increases the section size that can be hardened. The bainitic treatment increases the toughness for all product forms. This is intended to be fabricated in the annealed condition. It can be TIG welded in the annealed condition but requires post treatment to achieve high joint efficiencies. HP 9- 4-45 is available as sheet, plate, bar, and forgings.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1967
Accession Number
AD0821651

Entities

Organizations

  • Battelle Memorial Institute

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Facilities
  • Axial Loads
  • Compressive Properties
  • Contracts
  • Engineering
  • Government (Foreign)
  • Government Procurement
  • Governments
  • Heat Treatment
  • Materials
  • Materials Engineering
  • Materials Laboratories
  • Mechanical Properties
  • Stress Corrosion
  • Tensile Properties
  • Toughness

Fields of Study

  • Materials science

Readers

  • Metallurgy