Development of Process Technology for Vanadium Containing, High-Strength, Low-Carbon, Heavy Plate and Its Trial Manufacture

Boris Z. Belenky; Leonid A. Smirnov; Iosif M. Srogovich; Peter S. Mitchell

doi:10.4028/www.scientific.net/MSF.500-501.589

Paper Titles

Application of Nb-O Affinity in Clean Steel
p.559

Development of NbTiB Microalloyed HSLA Steels for High-Strength Heavy Plate
p.565

Development of Low Carbon Microalloyed Bainitic Steels for Structural Plate Applications
p.573

Influence of Severe Accumulative Rolling in a Low Carbon Microalloyed Steel
p.581

Development of Process Technology for Vanadium Containing, High-Strength, Low-Carbon, Heavy Plate and Its Trial Manufacture
p.589

Influence of Deformation and Coiling Temperature on Mechanical Properties of a High Strength Pipeline Steel
p.597

The Effect of Thermomechanical Processing on the Structure and Mechanical Properties of Ni, Nb and V-Bearing HSLA Steels
p.605

Characterisation of Bimodal Grain Structures and Their Dependence on Inhomogeneous Precipitate Distribution during Casting
p.613

Characterization of the Interaction of the Interstitial Atoms with the Substitutional Atoms and with the Dislocations in Extra-Mild Steels through Coupled Use of Thermoelectric Power and Internal Friction Measurements
p.623

HomeMaterials Science ForumMaterials Science Forum Vols. 500-501Development of Process Technology for Vanadium...

Development of Process Technology for Vanadium Containing, High-Strength, Low-Carbon, Heavy Plate and Its Trial Manufacture

Abstract:

The effects of adding vanadium (up to 0.1%) and niobium (0.02%) to a steel containing 0.07%C – 1.5%Mn – 0.29%Si – 0.035%Al – 0.01%N have been studied in the laboratory. It was determined that a steel containing 0.05%V had a yield stress, after accelerated cooling, greater than 480 MPa and toughness, as measured by U-notch and Vee-notch impact specimens, improving as the finish rolling temperature was lowered from 950oC to 750oC. Consequently, a semi-industrial trial, involving the manufacture of a steel containing 0.07%V, rolled to 22 mm and 32 mm thick, narrow plates, was carried out. This demonstrated that after finish rolling at 750oC, followed by air cooling, the steel had a yield strength in excess of 470 MPa accompanied by excellent toughness. The work demonstrates the potential for achievement of high levels of strength and toughness in heavy plate steels, micro-alloyed with vanadium.