J55 vs N80
J55 and N80 casing pipe: 1. The yield strength of N80-1/Q is 173 ~ 206 MPa higher than that of J55. 2. The elongation of N80-1/Q is...
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J55 and N80 casing pipe: 1. The yield strength of N80-1/Q is 173 ~ 206 MPa higher than that of J55. 2. The elongation of N80-1/Q is...
Short casing generally include: magnetic positioning pup joints and casing pup joints. Magnetic positioning pup joints: A short casing...
The hydrostatic pressure test of casing pipe is an indispensable part of the production process of the steel pipe. Its role is to test...
J55 casing pipe manufacturers talk about the rapid heat treatment of steel induction heating, the steel quickly passes through the...
Non-uniform deformation of J55 casing pipe hoop during metal pressure processing, the distribution of internal deformation and stress of...
When the carbon content dissolved in the matrix has increased to a certain extent, the matrix of the high vanadium high-speed steel in...
The casing is mainly used to support the wellbore during and after drilling to ensure the normal operation of the entire oil well after...
1. Heat treatment PSL1: J55 and K55 are the same (rollable delivery); PSL2: J55, K55 products should be the whole normalizing or...
1, Difference between lsaw steel pipe and ssaw steel pipe in production process LSAW steel pipe is a longitudinally parallel steel...
Production process of ssaw steel pipe: based on strip coil as raw material, often warm extrusion molding, automatic double-wire...
LSAW steel pipe is a longitudinally parallel steel pipe. Usually pided into metric welded steel pipe, welded thin-walled pipe,...
Advantages of lsaw steel pipe It can destroy the ingot casting structure, refine the grain of the steel, and eliminate the defects of...
Features of lsaw steel pipe structure in design are as follows: (1) The geometrical characteristics of the pipe section are good, the...
LSAW steel pipe is a cylindrical shape in which a hot rolled coil is formed by a forming machine and deforms the coil into a smooth...
LSAW welding of laser welding machine is an automatic welding equipment that automatically completes the straight weld seam of the...
The quality inspection method of lsaw steel pipe is as follows: 1, Judging from the surface, that is, in appearance inspection. The...
In recent years, with the development of the national economy, thick-walled LSAW steel pipe have been increasingly used in offshore...
SSAW pipe meaning: It is made by winding a low carbon carbon structural steel or low alloy structural steel strip into a blank according...
The application of ssaw steel pipe production equipment in many modern machines is precisely because of this, it only shows the important...
One. Production process introduction of large diameter lsaw steel pipe Rolling machine→Uncoiler→Unwinder→Retripper leveling...