Seamless tube, Seamless pipes, Difference between the resistance welding and high frequency welding
Home > About Us> Tech & Service

Welded steel pipe & tube

Welded steel pipe (steel pipe manufactured with a weld) is a tubular product made out of flat plates, known as skelp, that are formed, bent and prepared for welding.

Difference between the resistance welding and high frequency welding

 High frequency welding, HFI pipe

The main principle is different, as the name implies resistance welding, resistance welding a weldment composition after pressure is applied through the electrodes, the use of electric current through the resistor in thermal contact with the joint surfaces and adjacent areas generated by the welding method.

High-frequency welding: High-frequency current through a metal conductor, will produce two strange effects: skin effect and proximity effect, is the use of high-frequency welding of these two effects to be welded steel pipe, which is to achieve two effects metal high frequency welding basis.

High-frequency welding is the use of the skin effect of high-frequency energy is concentrated in the current surface of the workpiece; and the use of the proximity effect to control the location and extent of the high-frequency current to flow line. Current speed is very fast, it can be in a very short period of time adjacent steel edge heating, melting, and by pressing achieve docking.





English Inglés SpanishEspañol
Sunny Steel Blog
Recommended products
Pipe fittings
Pipe fittings are used to connect pipes.
Welded steel pipes Weld steel pipes
We produce an extensive selection of weld steel pipe
Welded steel pipes Anti corrosion pipe
Anti-corrosio pipe is processed through the preservation
Ceramic-Lined Pipes
from a single spool piece to complete piping systems.
Pipe flanges
Pipe flange are a method of connecting pipes, valves.
Pipe Fitting Accessories
We are passionate in Stub Ends, Bolt Sets, Fasteners


About Sunny Steel

Our team are highly trained and experienced in servicing and producing all types of steel supplies. Whether you've got a large construction project, or need parts for industrial machinery, our team of steel fabrication consultants will ensure that your project is provided with the parts you need, when you need them.

Link exchange