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SGH—1电焊条是冶金部建筑研究总院和石油部管道电焊条厂合作研制的新产品。该焊条是与高强度高韧性管线钢相匹配的焊接材料,它适用于 X 60和16Mn 等低合金高强度钢管线工程的低氢型全位置下行焊接,它填补了国内这方面的空白。它具有熔敷金属扩散氢含量小于50ml/100g、焊缝低温冲击韧性和抗裂性优良、施焊时电弧稳定、操作工艺性能符合要求、既能进行立向下行焊接、又能作全位置施焊等特点。各项性能与国外同类型的先进产品相近与相当。文章对该焊条的研制过程、基本性能及测试指标等作了综合论述。笔者认为该焊条对推广应用 X 60钢管材具有现实的技术经济意义。
SGH-1 electrode is the Ministry of Metallurgical Building Research Institute and the Ministry of Oil pipeline welding rod factory to develop new products. The welding rod is a welding material matched with high-strength and high-toughness pipeline steel. It is suitable for low-hydrogen full-position down welding of low-alloy high-strength steel pipelines such as X 60 and 16Mn. It fills the gap in this field in China. It has a deposited metal diffusion hydrogen content of less than 50ml / 100g, weld low temperature impact toughness and crack resistance, welding arc stability, the operation of the process performance to meet the requirements, both vertical and downward welding, but also for all facilities Welding and other characteristics. The performance of similar foreign products of the same type and similar. The article made a comprehensive discussion of the electrode development process, the basic performance and test indicators. I believe that the welding rod to promote the use of X 60 steel pipe has a realistic technical and economic significance.