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Improve the comprehensive properties of A709 50W weathering steel plate

A709 50W is a weathering bridge steel plate belonging to the American standard. It implements the American standard ASTM standard. It is generally used in steel structures such as highways and bridges that are exposed to the atmosphere for a long time. Compared with ordinary carbon steel, A709 50W weathering steel plate can be used in steel plates. A dense rust layer is created on the surface, thus preventing further corrosion inside.

Delivery status of A709 50W weathering steel plate: hot rolling, controlled rolling, etc. The delivery status can also be specified according to technical requirements, which must be indicated in the quality certificate. Production process: Oxygen top-bottom double hammer converter → LF refining furnace → slab continuous casting → controlled rolling production.

The steel mill has improved the comprehensive properties of A709 50W weathering steel plate, especially the low temperature impact toughness, by formulating suitable smelting, continuous casting and rolling processes, and by using the combination of microalloying technology and controlled rolling and controlled cooling technology.

The A709 50W weathering steel plate bridge plate produced meets the standard requirements of ASTM A709/A709M-06, and its physical quality has reached the international advanced level. It has been exported to America, Europe and other places, and has been well received by users.