GB/T ECuSi-B
AWS A5.6 ECuSi
Description: T207 is a copper alloy electrode with silicon bronze core and low hydrogen sodium coating. Use DCEP (direct current electrode positive) with great mechanical properties. It has good corrosion resistance to inorganic acids other than nitric acid, most organic acids and seawater. Application: It is suitable for welding of copper, silicon bronze and brass, surfacing welding of linings of chemical machinery pipelines, etc. Chemical composition of weld metal(%):| Cu | Si | Mn | Pb | Al+Ni+Zn |
| ＞92.0 | 2.5 ~ 4.0 | ≤3.0 | ≤0.02 | ≤0.50 |
| 试验项目 Test item | 抗拉强度 Tensile strength Mpa | 延伸率 Elongation % |
| 保证值 Guaranteed | ≥270 | ≥20 |
| Rod diameter （mm） | 3.2 | 4.0 | 5.0 |
| Welding Current （A） | 90 ~ 130 | 110 ~ 160 | 150 ~ 200 |