What are the main fields of application for rectangular steel drainage pipes?

Rectangular steel drainage pipes are primarily used for railway bridge drainage, guardrail supports on both sides of highways, and in systems for engineering and chemical waste discharge. The construction of rectangular drainage pipes should be carried out according to planning requirements, with the pipes extending no less than 30mm below the bottom surface of the structure and no more than 4m in longitudinal distance. b. Bridges on interchanges and highways.

Rectangular steel drainage pipes; commonly available sizes include a total height of 420mm with a large inner diameter of 215mm and a small inner diameter of 100mm. Wall thickness options are 5.5mm, 7mm, 8mm, and 10mm. Standard rectangular sizes include 125×400mm, 160×447mm, 125×300mm, 125×510mm, 125×600mm, and 160×585mm, among others. In addition to high impact resistance, high mechanical properties, good ductility, and strong bending resistance, cast iron drainage pipes effectively and reliably discharge domestic wastewater and precipitation within urban areas.