MATERIAL - WELDING ELECTRODES - P+H BA91 (HARNISCHFEGER CORPORATION) WELD STRENGTH AFTER HEAT TREATMENT

Abstract

Single groove, vee-joint butt welds with a 1/8 in. root spacing were made in 1/8-in. thick, annealed 4340 steel using P+H BA91 (Harnischfeger Corporation) welding electrodes for two pass, reverse polarity, DC welding. After welding the weldments were normalized (1600 F, 1-1/2 hr, air cool), austenitized (1550 F, 1-1/2 hr, oil quench) and double tempered (800 F, 2 hr, air cool, 800 F, 2 hr, air cool). The ultimate strength of the heat treated parent material was 182.0 KS1, and of the welds 170.9 KSI (10 specimens). The weld efficiency thus was 94%.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1958
Accession Number
AD0404248

Entities

People

  • H. C. Turner
  • W. M. Sutherland

Organizations

  • General Dynamics

Tags

DTIC Thesaurus Topics

  • Air Cooled
  • Contracts
  • Corporations
  • Efficiency
  • Electrodes
  • Heat Treatment
  • Joints
  • Laboratory Furnaces
  • Materials
  • Mechanical Properties
  • Strain Rate
  • Welded Joints
  • Welding
  • Welding Rods
  • Welds
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Energy Conservation and Renewable Energy Engineering.
  • Metallurgy

Technology Areas

  • Space
  • Space - Hall-Effect Thruster