31
Jul
The difference between cold drawn steel pipe and hot rolled steel pipe
A customer needs hot rolled steel pipe this week, but only cold rolled steel pipe due to the special wall thickness.Today let’s learn about the difference between hot rolled steel pipe and cold drawn ...
31
Jul
Why that can’t carbon steel elbow contact water?
The elbow is made of cast iron, stainless steel, alloy steel, malleable iron, carbon steel, non-ferrous metal and plastic. Elbow connection methods are: direct welding (the most commonly used way) fla...
31
Jul
The reasonand prevention action of bore formation in welding pipe
The porosity of welding seam will not only affect the compactness of welding seam, cause pipeline leakage, but also become the inducing point of pipeline corrosion, and will reduce the strength and to...
31
Jul
the type of flange sealing surface
What is gasket ? Cangzhou wilson pipeline sales@wilsonpipeline.com
The contact surface where the gasket is inserted between the flanges and pressed to achieve the sealing effect is called the fla...
31
Jul
how to introduction of fracture inspection
The fracture inspection is one of the methods to check the quality of steel pipeline products.Cangzhou wilson pipeline sales@wilsonpipeline.com
There are mainly the following fracture types: ducti...
31
Jul
How the PWHT work?
Post weld heat treatment (PWHT) process refers to a welding heat treatment process in which the welds are heated to a certain temperature and held for a certain period of time after the completion of ...
