Development and Production Practice of Hot Rolled Wire ER50-6 Welding Steel
YU Rong
ZUO Maofang
ZHOU Mingjun
XIE Hongwei
HE Lu
Abstract：Using the existing process equipments, after deep decarburization with a finish oxygen blowing in converter, the composition are controlled C 0.03%-0.04%, P ≤ 0.020% in tapping. The gas and inclusion in steel were removed in the LF refining and full procedure protection was taken in casting. The electromagnetic stirring technology was applied in the caster end to reduce the inclusions and to improve the quality of continuous casting slab. The pass design were optimized and the rolling temperature, spinning temperature, cooling speed were controlled to improve the product microstructure, mechanical properties and dimensional accuracy. ER50-6 wire steel hot rolled wire rods was developed in Zhanggang, the product microstructure is ferrite and pearlite, ferrite volume fraction is more than 80%, tensile strength is less than 560 MPa. The performance of all welding rod is stability, the rod has good surface quality. It can fully meet the requirements of custom.
Keywords：ER50-6 steel wirewireproduct developmenttensile strength
Publication Date：2015-01-01
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：3( 14-16 )