Can I Weld to an F1554 Grade 105 Anchor Bolt?

F1554 Grade 36 is a weldable grade of anchor bolt. If F1554 Grade 55 meets the supplement 1 requirements for ASTM F1554, then it is weldable. Since F1554 Grade 105 is a high strength alloy steel bolt that generates its strength through the heat treating process, welding to this grade of anchor bolt should be avoided. Additionally, welding to Grade 55 anchor bolts that do not meet the weldability requirements of supplement 1 should also be avoided. With regard to F1554 Grade 105 anchor bolts and Grade 55 bolts not meeting supplement 1, Instead of welding a nut to a threaded rod, a headed anchor bolt with a forged head should be considered.

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