Can A193 Grade B7 be substituted for F1554 grade 55?

No. All F1554 anchor bolt grades have a maximum strength requirement. A193 grade B7, which is readily available as all thread rod, possesses a minimum tensile strength requirement that exceeds the maximum tensile strength of F1554 grade 55. Therefore, this is not an acceptable substitution. When it comes to galvanized anchor bolts, stronger is not always better, and one should not assume that a bolt that exceeds the strength requirement of the specified product can be substituted without the engineer’s approval.

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