Bridge plates
Bridge plates are special thick steel plates used for manufacturing bridge structural components. They are made of special carbon steels and low-alloy steels for bridge construction, with the suffix "q" (representing "bridge") marked at the end of their steel grades.
Carbon steels for bridge construction include A3q for riveted bridge structures and 16q for welded bridge structures; low-alloy steels for bridge structures include 12Mnq, 12MnVq, 15MnVNq, 16Mnq, etc. The thickness of bridge steel plates ranges from 4.5 to 50 millimeters.
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