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Exhibit 23.01

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (No. 333-171217 and 333-179182) of Gerdau S.A. of our report dated March 14, 2025 relating to the consolidated financial statements and the effectiveness of internal control over financial reporting, which appears in this Form 20-F.

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