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Non metallic inclusion

金相分析 Test Item Non metallic inclusion
Purpose Non-metallic inclusions in metal
Test Period 3 working days
Test Range Various metals and alloys
The Cost For details, please call hotline 0510-82605847
        The observed field of view and the standard map were compared, and each type of inclusion was rated.
       According to the morphology and distribution of inclusions, the standard map is divided into five categories: A, B, C, D and DS.
       These five categories of inclusions represent the most often observed inclusion types and morphology:
       Class A (sulfide): with a high ductility, a wide range of shape ratio (length / width) of a single gray mixture, the general end of a round;
       Class B (Al2O3): most of the particles are not deformed, with a corner, the morphology is smaller than the small (usually <3), black or blue particles, along the direction of the rolling line (at least 3 particles);
       Class C (silicate): with high ductility, a wide range and shape ratio (generally is more than or equal to 3) the individual is black or dark grey inclusions, general end forms an acute angle;
       Class D (spherical oxide): not deformed, with a corner or circular, the morphology is smaller than the small (usually <3), black or blue, no regular distribution of the particles;
       DS (single spherical particles): circular or nearly circular, single particle diameter of inclusions of more than 13 M.
      
   Test method and standard
Test method Project name Test standard Test period Remarks
Non metallic inclusion Iron and steel materials
ASTM E 45-05
3 working days  
High carbon chromium bearing steel GB/T 18254-2002
GB/T 18579-2001
Tool steel GB/T 9943-2008
ISO 4957-1999
Microstructure of high manganese steel GB/T 13925-1992
GB/T 6394-2005
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