Classifications
GB F4A2-H08A F5A2-H08MnA
AWS F6A2-EL12 F7A0-EM12K
General Characteristics
Type: silicon calcium
Basicity: 1.0-1.1
Grain Size: 10-40 meshes(2.0-0.45mm)
Currency: AC/DC(wire to be connected to the positive electrode when using DC)
Features:
*stable burning arc, easy slag removal and smooth bead with head appearance.
Applications
*suitable for welding low alloy steels for important products, such as ships, boilers, pressure vessels, pipelines and so on;
*suitable for multiple-wire submerged arc welding, especially for butt welding of large diameter vessel with one-pass on both sides;
*usually used for SAW of liquefied gas storage tanks, gas bottles and pipeline steel.
Chemical Composition of Welding Wire(%)
Mechanical Properties of all Weld Metal
Notes
1 Fluxes to be baked for two hours at 300-350¡æ before using;
2 Removal of rust, oil, dirt, water, impurities etc in welding-areas.
