Yearly Archives: 2022

In the rolling process of seamless steel pipes, especially precision seamless steel pipes, the pickling process is very important to remove the oxide scale and rust on the surface. How is pickling per...

Seamless steel pipes are made of a single piece of metal and have no seams on the surface. They are made of steel ingots or solid pipe billets through perforation, and then hot-rolled, cold-rolled or ...

Nowadays, hot-dip galvanized seamless pipe, as a commonly used type of fire-fighting pipeline, plays an irreplaceable role in the field of fire safety due to its high pressure-bearing strength. To thi...

Why does hot-dip galvanized seamless steel pipe cause chromatic aberration? Mainly due to the violent reaction of iron and zinc. The violent reaction of Fe-Zn makes the original complete coa...

Bearing seamless steel pipes are also called high-carbon chromium seamless steel pipes. The carbon content Wc is about 1%, and the chromium content Wcr is 0.5%-1.65%. Bearing seamless steel tubes are ...

What is precision hydraulic seamless steel pipe? ——Refers to cold-drawn or cold-rolled precision seamless steel pipes with precise inner diameters for the manufacture of hydraulic and pneumatic cylind...

There are two main factors that cause surface corrosion of precision seamless pipes: chemical corrosion and electrochemical corrosion. (1) Chemical corrosion 1. Surface contamination: oil,...

When transporting all kinds of pipes, you should make preparations for packaging in advance, and perform standardized operations for transportation and loading to avoid scratches on the pipes and bear...

The high quality of pickled and passivated seamless steel pipes is mainly manifested in dimensional accuracy and surface finish. Even after heat treatment, there will be no oxide film on the pipe surf...

For stainless steel seamless pipes, the three elements of solution treatment are temperature, holding time and cooling rate. The solid solution temperature is mainly determined according to the che...