Abbreviations

Abbreviation of Standards

      GB      Chinese National Standards
      AWS    American Welding Society  
      JIS      Japanese Industrial Standards 
      DIN     Dectshe Industrie Normen 
      BS       British Standards 
      ISO     International Standard Organization

Notation of Welding Positions

     F       Flat and Horizontal Fillet
     V       Vertical (up)
     VD     Vertical Down 
     OH    Overhead
     H       Horizontal 
     HF     Horizontal Fillet

Abbreviation of Mechanical Properties

    Y.P.   Yield point 
    T.S.   Tensile Strength  
    EL.     Elongation 
    I.V.     Impact v - notch 
    J         Joule                                0.102kgf . m = 1J 
    MPa    Megabar                            1kgf/mm³ = 9.8Mpa