gbt 11251 40cr steel chemical composition GB/T 11251 40Cr hot rolled structure steel plates - Bebon ...
GB/T 11251 40Cr hot rolled structure steel plates ,BBN GB/T 11251 40Cr hot rolled structure steel plate is one of the most widely used steel in the machinery manufacturing industry. After quenched and tempered, GB/T 11251 40Cr hot rolled structure steel has good and comprehensive mechanical properties, good low temperature impact toughness and low notch sensitivity.