0.01V was pilot produced by new built 350 kt special steel continuous rolling production line at Shanghai No5 Steel with controlling the Kocks inlet temperature of bar between 780 ℃ and 820 ℃.The results showed that the grain size rating of φ45 mm bar of UC2 steel was 7.5
hardness HB 217
yield strength 432 MPa
tersile stength 720 MPa to meet the requirement of normaliing products specification.