DEVELOPMENT OF AN AIR-HARDENABLE CAST STEEL FOR THICK SECTIONS

Abstract

A program was conducted to develop a st el alloy composition suitable for cross sections of up to 5 in. thickness which can develop adequate toughness down to -40 F after air hardening and tempering. As a result of systematic variations in alloy content, it has been shown that there are upper limits for each of the major elements in common us . Moreover, a critical carbon content for optimum toughness exists. From all of this, two preferred chemistries were chosen which in a 5-in. section are capable of providing 18-20 ftlb impact strength at -40 F and a tempered hardness after air h rdening of 2- 24 Rc

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Document Details

Document Type
Technical Report
Publication Date
Jun 06, 1962
Accession Number
AD0277629

Entities

Organizations

  • IIT Research Institute

Tags

Communities of Interest

  • Energy and Power Technologies
  • Weapons Technologies

DTIC Thesaurus Topics

  • Alloys
  • Armor Plate
  • Chemical Synthesis
  • Chemistry
  • Elements
  • Explosives
  • Grain Boundaries
  • Hardening
  • Heat Treatment
  • Impact Strength
  • Measurement
  • Mechanical Properties
  • Microstructure
  • Steel
  • Tempering
  • Tensile Properties
  • Tensile Strength

Readers

  • Metallurgy
  • Regression Analysis.