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Introduction to nondestructive testing of pressure vessels such as boiler steel pipes
Pressure vessels such as boiler steel pipes and pressure vessel components often have defects that are difficult to detect, such as lack of fusion, lack of penetration, slag inclusions, pores, cracks, etc. in the welds. It is impossible to conduct destructive inspections on each boiler or pressur...Read more -
What are the connections and differences between normalizing and annealing steel pipes
What is normalizing? Normalizing is a heat treatment that improves the toughness of steel. After heating the steel component to 30~50℃ above the Ac3 temperature, keep it warm for some time and then air cool it out of the furnace. The main feature is that the cooling speed is faster than annealing...Read more -
42CrMo alloy steel pipe is a perfect combination of strength and durability
42CrMo alloy steel pipe is a high-quality steel material, which is widely used in various fields with its excellent mechanical properties and durability. It is made of 42CrMo alloy steel, which has good hardness, strength, and corrosion resistance, and is suitable for use under harsh working cond...Read more -
Details of 12Cr9MoNT seamless steel pipe for petroleum cracking
Among many industrial materials, seamless steel pipes have always attracted much attention for their unique performance and wide application fields. Among them, 12Cr9MoNT seamless steel pipes have been widely used in petroleum, chemical, and other industries for their excellent corrosion resistan...Read more -
Galvanized steel pipe angle welding is a combination of strong skills
Galvanized steel pipe angle welding, as an important technology in the field of welding, plays a key role. It is not just a simple welding, but also an art, which requires welders to constantly explore and hone their skills in practice. From material selection to the welding process, every detail...Read more -
What is the difference between the surface processing of spiral steel pipes and stainless steel pipes
Let’s first talk about the original surface of stainless steel pipes: NO.1 The surface that is heat treated and pickled after hot rolling. It is generally used for cold-rolled materials, industrial tanks, chemical industrial equipment, etc., with a thicker thickness of 2.0MM-8.0MM. Blunt su...Read more