FEATURES&BENEFITS
• Excellent arc characteristics
• Low spatter level
• Quick and easy slag removal
• Low moisture reabsorption
• Low smoke level
• Low hydrogen, less than 4 ml/100 g • Stable, easy to control arc
• Improves weld bead appearance, higher deposition
• Reduces clean-up time
• Prevents starting porosity
• Welder safety and comfort
• Resistant to hydrogen-induced cracking
TYPE OF CURRENT
Welding Positions:
AWS E9018-B3 H4R Low Alloy Electrodes Tianjin, China
Outstanding welding electrode for higher strength piping, castings and forgings. The coating is specially formulated to resist moisture pick-up under conditions of high heat and humidity. Electrode offers resistance to moisture reabsorption which helps prevent hydrogen cracking and aids in elimination of starting porosity.
Chrome-Moly steels and piping, Castings, Forgings, Boilers
Single and multiple pass, DCEP, AC
• Chrome-moly pipes • Boiler fabrication
RECONDITIONING
STORAGE
TYPICAL WELD METAL PROPERTIES* (Chem Pad)
TYPICAL MECHANICAL PROPERTIES* (SR)
• Maintaining a proper welding procedure - including pre-heat and interpass temperatures - may be critical depending on the type and thickness of steel being welded.STANDARD DIAMETERS AND PACKAGES: For a complete list of di
CONFORMANCES AND APPROVALS
• AWS A5.5, E9018-B3 H4R
• ASME SFA 5.5, E9018-B3 H4R
• ABS
ARC LENGTH
Very short arc
FLAT
Angle electrode 10°-15° from 90°
VERTICAL-UP
Use weaving techniques
VERTICAL-DOWN
Not recommended
OVERHEAD
Use slight weaving motion within the puddle
Direct Current Electrode Positive (DCEP) or AC
After opening, store in holding oven (250°F to 400°F) until used.
If exposed to atmosphere for extended periods, reconditioned for one (1) hour at 600°F.
STANDARD DIAMETERS AND PACKAGES
For a complete list of diameters and packaging, please contact Hobart Brothers at (800) 424-1543 or (937) 332-5188 for International Customer Service.
Electrode positive, work negative (DCEP) or AC
GENERAL
TYPICAL DEPOSITION DATA (at optimum)
TYPICAL DIFFUSIBLE HYDROGEN:
*For out of position welding, reduce amperages shown by 15%.
