Dear Mr. Tufail,
The main difference between a carbon steel and killed carbon steel is the process of manufacturing the steel.
Killed carbon steel is basically manufactured by deoxidation process. In KCS, oxygen removes by the addition of silicon or Aluminum (de-oxidizing agent) to make the steel clean, without voids and refines the microstructure.
In practice, when a carbon steel contains a residual content of 0.10 Silicon in the chemical composition, it is considered as a Killed carbon steel. Examples are ASTM specifications A 516 Gr. 60, 70 (Plates), A 333 (Pipe); A 350 Gr. LF2 (forgings) etc.
The benefit of killing is to reduce the number of gas pockets present in the steel, which can adversely affect the mechanical properties of the steel, including ductility and toughness, as well as reduce the number of oxide-type inclusions in the steel.
Hope this helps!!!
Regards,
Ashfaq Anwer
thepetrostreet.com
On Wed, 11 Aug 2010 03:22:43 -0700 (PDT), muhammad tufail <tufailkhan63@yahoo.com> wrote:
Dear members, I would like to know in details the differrence between cs and ks.Thanks in advance.
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