Root Reinforcement for 304L pipe

hi,
If there is root reinforcement in the 304L pipe welding, Could we grind the reiforcement place or should that are be cut and re-welded?
Base Material thickness 7mm
Root Reinforcement thickness 4 mm so EN ISO 5817-B max thickness 3 mm
Thanks,

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Yes, your welder may grind out the excessive weld metal, minimize cut-out and re-weld.

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