Español
عربي
Русский
한국인
Português
Türkçe
Italiano
Français
GermanStainless Steel
Austenitic / Duplex Steel / Nickel Alloy / Cobalt AlloyWhy nickel alloy is more expensive?
Nickel is a ferromagnetic metal element with excellent properties such as corrosion resistance, high temperature resistance, oxidation resistance and good ducti......
Read MoreHow to identify inferior stainless steel welded pipe?
1. FoldingFake and inferior welded stainless steel pipes are easy to fold. Folding is a variety of fold lines formed on the surface of stainless steel pipes. T......
Read MoreClassification Of Welding Technology
Directly welded pipes: the use of small size model can avoid stress corrosion, hot cracks and deformation, and the welding current is 20% lower than that of hi......
Read MoreCommon Flaw Detection Methods For Welded Pipes
In the process of manufacturing and using welded pipe, nondestructive testing to ensure weld quality is particularly important. The common nondestructive test......
Read MoreWhat is Penetrant Testing?
Penetrant testing (abbreviated as PT) is a nondestructive testing method for inspecting surface opening defects based on the principle of capillary action. This......
Read MoreThe most widely used NDT: Radiographic Testing
Radiographic testing (RT). Radiography (RT) is a nondestructive testing method that uses X-ray or g-ray to penetrate the test piece and film as the equipment fo......
Read MoreWill stainless steel rust? Yes!
When there are brown rust spots on the surface of stainless steel pipe, people are surprised: they think that "stainless steel is not rusty, rusty is not stainl......
Read MoreNDT Method: Eddy Current Testing
Based on the principle of electromagnetic induction, the nondestructive testing method is called nondestructive testing, which can nondestructive evaluate some ......
Read MoreWhat is Ultrasonic Testing?
Ultrasonic testing is mainly used to detect buried defects in butt welds and cracks on the inner surface of pressure vessel welds. It is also used to detect pos......
Read MoreWhy should stainless steel pipes be solution annealed?
Austenitic stainless steel is softened by solid solution treatment. Generally, the stainless steel pipe is heated to about 950 ~ 1150 ℃ and kept warm for a per......
Read MoreWhat are the types of welding?
Welding: usually refers to the welding of metal. It is a forming method to connect two separated objects into one by heating or pressurizing, or both at the sam......
Read MoreWhy should steel pipes be heat treated?
The function of heat treatment is to improve the material mechanical properties of steel pipe, eliminate residual stress and improve its cutting performance.Acc......
Read More