Industry News
-
How to choose a suitable storage warehouse for large diameter steel pipes
(1) The warehouse should be selected according to the geographical conditions. Generally, an ordinary closed warehouse is used, that is, a warehouse with a roof, a wall, tight doors and windows, and a ventilation device; (2) Do not stack together with acid, alkali, salt, cemen...Read more -
Thick-wall steel tube details
A steel pipe whose outer diameter to wall thickness ratio is less than 20 is called a thick-walled steel pipe. Mainly used as petroleum geological drilling pipes, cracking pipes for the petrochemical industry, boiler pipes, bearing pipes, high-precision structural pipes for au...Read more -
Construction and installation of thin-walled stainless steel pipes
1) Thin-walled stainless steel pipes and fittings should not be in direct contact with cement, cement mortar, or concrete. When the pipeline is laid in the dark, anti-corrosion tape should be wrapped on the outer wall of the pipe or a plastic-coated thin-walled stainless steel...Read more -
Definition of API casing
Oil pipes are mainly used for oil and gas well drilling and oil and gas transportation. It includes an oil drilling pipe, oil casing, and oil extraction pipe. Oil drill pipe is mainly used to connect drill collars and drill bits and transmit drilling power. The oil casing is m...Read more -
Surface treatment of thick-wall straight seam steel pipes
The uniformity of the pipe wall of the thick-walled straight seam steel pipe will directly affect the later-processed parts. The pipe wall of the thick-walled straight seam steel pipe cannot be controlled, and the overall steel pipe cannot be strictly controlled. Small and med...Read more -
The purpose of preheating the industrial steel pipe before welding the spiral steel pipe
The purpose of the spiral steel pipe preheating before welding is as follows: (1) Preheating can slow down the cooling rate after welding, make hydrogen diffuse in the weld metal and escape, and avoid cracking caused by hydrogen. It can also reduce the degree of hardening of w...Read more -
What is the main difference between hot-rolled steel pipe and cold-rolled steel pipe
1. The cold-rolled steel pipe allows local buckling of the section so that the bearing capacity of the bar after buckling can be fully utilized; while the hot-rolled steel pipe does not allow local buckling of the section. 2. The reasons for the residual stress of hot-rolled s...Read more -
Large-diameter steel pipe inner wall anticorrosion
Large-diameter steel pipe inner wall anticorrosion 1. Before processing all steel pipes, the steel plate on the inner wall side of the large-diameter steel pipe shall be de-rusted until the metal is exposed to metallic luster (whitening). It should meet the sa2.5 standard requ...Read more -
The difference between the standard specification of spiral steel pipe and precision steel pipe
Spiral steel pipes are mainly used in water supply engineering, the petrochemical industry, the chemical industry, the electric power industry, agricultural irrigation, and urban construction. Spiral steel pipes are 20 key products developed in my country. Spiral steel pipe is...Read more