What are the requirements for welding thick Q355GNH cold rolled weathering steel coil

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The boiler steel plate has small strain aging sensitivity, especially in the corresponding working temperature range, a certain value of aging impact energy must be guaranteed;The boiler steel plate has low notch sensitivity, which can prevent steel from cracking in welding, opening, and local stress concentration areas;The Q355GNH cold rolled weathering steel coil, boiler steel plate has good welding performance;The Q355GNH cold rolled weathering steel coil, boiler steel plate has a good microstructure, white spots and cracks are not allowed.

A537 grade 70 steel with the thickness range is 1.2-600mm, the width range is 1220-4200mm, and the length range is 5000-18000mm. Also note that the Q355GNH cold rolled weathering steel coil, A537 grade 70 steel coil thickness should not exceed 25 mm. The mechanical properties of A537 grade 70 steel is yield strength is 290MPa, and the tensile strength is 485-620Mpa.

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