Usually the amount of non-metallic inclusions in steel is not higher than 0.1%.

Different methods for analysis of non-metallic inclusions have been developed and are now in use.

Note that as the carbon content decreases the greater the problems with non-metallic inclusions.

Non-metallic inclusions that arise because of different reactions during metal production are called natural or indigenous.

Such non-metallic inclusions are called foreign, accidental or exogenous.

By chemical content non-metallic inclusions are divided into the following groups:

By stability, non-metallic inclusions are either stable or unstable.

The non-metallic inclusion content of the alloy was monitored by a light reflectance technique.

Silicates are the biggest group among non-metallic inclusions.

The remaining impurities, such as sulphur, hydrogen, nitrogen, and non-metallic inclusions, are removed.

Non-metallic inclusions in steel are foreign substances.

In liquid steel non-metallic inclusions are in solid or liquid condition.

As these agents do not come into direct contact with the steel, non-metallic inclusions will not form in the steel itself.

Non-metallic inclusions arise because of many physical-chemical effects that occur in molten and consolidated metal during production.

These make it possible to determine content, structure and amount of non-metallic inclusions in steel and alloys with high accuracy.

Present-day methods of steel and alloy production are unable to attain completely pure metal without any non-metallic inclusions.

Steel, which includes a broad range of steel producers and universities interested improving the production process through Non-metallic inclusions content control.

Non-metallic inclusions are chemical compounds and nonmetals that are present in steel and alloys.

To achieve this understanding the authors incorporated non-metallic inclusions into a finite element (FE) simulation of metal forming.

This is due to forming non-metallic inclusions and gas pores, bubbles of gas that get trapped during the solidification process of steel.

During deformation, which occurs from flatting, forging, and stamping, non-metallic inclusions can cause cracks and fatigue failure in steel.

Non-metallic inclusions, the presence of which defines purity of steel, are classified by chemical and mineralogical content, by stability and by origin.

Three-dimensional composites of metal/non-metallic inclusions periodically/randomly embedded in a low permittivity matrix are usually modeled by analytical methods, including mixing formulas and scattering-matrix based methods.

This type of metamaterial is usually consisted of three-dimensional composites of metal or non-metallic inclusions periodically or randomly embedded in a low permittivity matrix.

The grain refinement and precipitation strengthening in addition to change in the morphology of the non-metallic inclusions can be attributed to the microalloying additions in the steel.