Articles By zora li

Published 3 Months Ago
Manufacturing process of seamless black steel pipe
The production method of seamless black steel pipe is roughly divided into the cross-rolling method (Monnesmann method) and the extrusion method. In the cross-rolling method (Mennesmann method), the pipe is first pierced with a cross-roller and then exten

Published 3 Months Ago
Chemical composition of seamless carbon steel pipe
Medium carbon steel refers to carbon steel with a carbon content of 0.25% to 0.60%. There are killed steel, semi-killed steel, boiling steel and other products.

Published 3 Months Ago
Features and uses of precision seamless black steel pipes
In recent years, automobile and real estate enterprises have a large demand for steel, which greatly increases the demand for steel and drives the development of the steel market.

Published 3 Months Ago
Quenching method for deformation and cracking of seamless black steel pipe
The following is a summary of the problems that need to be paid attention to in isothermal quenching of seamless black steel pipes for the reference of heat treatment operators.

Published 4 Months Ago
How is seamless steel pipe made?
The seamless steel pipe is made of perforated whole round steel, and the steel pipe without weld seam on the surface is called seamless steel pipe.

Published 4 Months Ago
What is precision hydraulic seamless steel pipe?
Precision seamless hydraulic tube made by precision cold drawn seamless steel pipe treated by black or gray phosphating process and sealing and anti-rust treatment of phosphating steel pipe.

Published 4 Months Ago
Influencing factors of yield strength of seamless steel pipes
The intrinsic factors affecting the yield strength of seamless steel tubes are: bonding bond, organization, structure. For example, comparing the yield strength of metals with ceramics and polymer materials, it can be seen that the influence of bonding bo

Published 4 Months Ago
Seamless steel pipe bundle
The steel pipe should be avoided during the bundling and transportation process, and the bundling signs should be uniform.

Published 4 Months Ago
Method for cutting thick - walled seamless steel pipes
For thick-walled seamless steel pipe, it is more important to protect the most basic use and play.

Published 4 Months Ago
Heat treatment defects and surface problems of seamless steel pipes
The quenching heating temperature of the seamless steel pipe is too high, or the heating time is too long, or the heating temperature is severely uneven, which may cause quenching cracks.

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