the invention belongs to the field of welding materials. The covered electrode is a kind of covered electrode with high strength, which can be used in welding high-strength structural steel with yield strength greater than 95MPa. The high-strength covered electrode of the present invention is characterized in that the deposited metallization composition of the covered electrode is as follows: C ≤ .7%; Si．1－．6％； Mn1．2－1．9％； Ni2．6－3．8％； Cr．41－1．5％； Mo．66－1．6％； Ti．3－．3％； The rest is Fe. Compare with that prior art, the covered electrode has the advantages of reasonable component design. The deposited metal in covered electrode has good comprehensive mechanical properties, and its tensile strength is greater than 1MPa；. The yield strength is above 95MPa; The impact energy at-5℃ is greater than 27J.
date of application: October 17th, 23
date of publication: September 15th, 24
date of authorization announcement: May 24th, 26
Applicant/patentee: Antai Technology Co., Ltd.; Iron and Steel Research Institute
Applicant's address: No.76 Xueyuan South Road, Haidian District, Beijing
Inventor: Yin Shike; Wang Yishan; Li Jifu; Xie Shaohui
Patent Agency: Beijing University of Science and Technology Huayi Patent Agency.