BBN 30CrMnSiA alloy steel are used for all kinds of special wear - resistant parts of automobile and aircraft. BBN Steel is specializing in GB/T 11251 30CrMnSiA hot rolled structure steel plates which is under GB/T specification.GB/T 11251 30CrMnSiA hot rolled structure steel plates has excellent mechanical properties and widely application.
GB/T 11251 40Cr hot rolled structure steel plates - BBN SteelThe hardenability of the steel is good. GB/T 11251 40Cr hot rolled structure steel plate is also suitable for cyanidation and high frequency quenching in addition to quenching and tempering treatment. The cutting performance is better when the hardness is from HB174 to 229, the relative machinability is 60%. GB/T 11251 40Cr hot rolled structure steel plates chemical composition:
GB/T 1591-2008 (GBT 1591-2008) - Chinese Standard GB/T 1591-2008:PDF in English version (GBT1591-2008). Auto immediate delivery.