AWS A5.1 E7048
EN ISO 2560-B-4948-A
JIS Z 3211 E4948
Characteristics and Application
AWS A5.1 E7048 Welding rods, welding electrode is designed for exclusive use in vertical downward welding. Slag release and crack resistibility are excellent. It is suitable for the vertical downward welding of steel, structures, and ship buildings, bridge.
Typical chemical Composition of Weld Metal (%)
Typical Mechanical Properties of Weld Metal
Notes on usage:
1. Clean up the contaminations on the base metal to avoid porosity and crack.
2. Dry the electrodes at 300-350℃ for 60 minutes, and keep at 100-150℃ before using.
3. For vertical downward welding, manipulate the electrode as shown in figure, Do not use balance arc.
4. Do not exceed the range of proper currents. Over heat input decrease hurt the impact toughness.
C 0.08 Mn 1.00 Si 0.55 P 0.02 S 0.006
Yield strength 500Mpa Tensile Strenght 600MPa Elongation 28% Charpy V-Notch -30 ℃ 78J
Welding rods, welding electrode