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Destructive Testing Methods

  1. Testing as per GOST 10243-75 and other regulatory documentation of macrostructure, fracture, sulphur partition by Baumann's method;
  2. Testing of microstructure as per GOST 5639-82 (grain-size determination, nonmetallic impurity rating as per GOST 1778-70, ferrite content in steel of austenite class  by metal-ferrite and magnetic methods as per GOST 11878-66);
  3. Mechanical tests at low, room and high temperature:

o    tensile test at room temperature as per GOST 1497-84, at high temperature as per GOST 9651-84 (yield point, tensile strength, percentage of elongation, contraction ratio);

o   impact-bending test as per GOST 9454-78 (defining impact energy, impact strength) in the range of temperatures from -80 to 100 °C;

o    flexture test as per GOST 14019-2003; - hardness determination as per GOST 9012-59 using Brinell hardness test, Rockwell hardness test,  Vickers hardness test; - critical brittle point determination as per GOST 23304-78, Rules and Standards of Nuclear-Power Engineering 7.002-86;

  1. Testing of corrosion-resisting steel and alloys for inter-crystalline corrosion resistance as per GOST 6032-2003;
  2. Chemical analysis of compounds of iron-base, aluminium-base and copper-base steel and alloys by spectral method as per GOST 18895-97.