carbon steel rigid steel conduit

The wire and cable protection tube produced by the seamed steel pipe of Q235 is usually the product of R=6D.

The wire and cable protection tube produced by the seamed steel pipe of Q235 is usually the product of R=6D.
If the R is large, the camber will be slow, and rigid steel conduit will be very easy to pass through when threading. When the carbon steel threading pipe is connected with the straight pipe, the interface is protected with a sleeve, and then the pipe and the threading pipe are connected by welding. The purpose is to prevent the interface from being damaged by electric welding, and to protect the inside purpose of wire and cable. Commonly used specifications are DN20-DN150(rigid steel conduit).