摘要
研制了超低氢、高韧性、高抗裂性及焊接工艺性能优良的E6018焊条,适用于屈服极限为490MPa级的低合金高强钢,其熔敷金属为针状铁素体组织,即使在大线能量条件下施焊,仍具有较高的低温冲击韧性。
Developed a E6018 Electrode which can provide the ultralow hydrogen, high toughness and high anticracking properties in weld metal. It has been proved to have excellent adaptabilities in welding low alloy high strength steel of 490 MPa grade yield strength. The deposited metal was designed to obtain the acicular ferrite structure, which has the better low-temperature impact toughness even under welding with high heat input.
关键词
焊条
韧性
低氢
manual electrodes
toughness
low hydrogen
