BAIJIAN - Third party testing organization
Carbon steel welding rods (with tensile strength of the deposited metal less than or equal to 500MPa or 50kgf/mm2) are suitable for welding carbon steel and low strength low alloy steel
For low hydrogen type and iron powder type welding rods、 the welding rod must be baked at a temperature above 350 ℃ before welding、 and should be used as much as possible according to the principle of using as much baking as possible. Otherwise、 welding defects (such as pores、 slag inclusions、 cracks、 deterioration of process performance、 etc.) will occur. For cellulose type welding rods、 the baking temperature specified in the manual should be strictly followed for baking. If the temperature is too high、 it will burn off the cellulose in the coating and damage the inherent process performance of the welding rod
When using low hydrogen welding rods、 the welder should be in an upwind position、 strengthen ventilation、 and prevent the harm of welding fumes to the body.
. For low hydrogen type welding rods、 the baking frequency should not exceed two times as much as possible to prevent the coating from becoming brittle or falling off
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