Application of Black Hollow Section

Black Hollow Section is made of Q235 hot rolled or cold rolled strip steel or coil as the base material.The utility model relates to a hollow square lightweight thin-walled steel pipe made by cold bending process.

Black steel pipe parameter

The thickness is generally about 1.0mm-30mm

Length: 1-24 meters

Diameter :19 * 19mm-250 * 250mm  

Black hollow square steel pipe application:

 conveying water, gas, air, oil and heating steam and other general low pressure fluids and other high load welded structural parts.