lvy lee

lvy

Company

Permanent Steel Manufacturing Co.,Ltd


Website

https://www.permanentsteel.com/


Bio

I am a professional digital marketer and a content writer related to the steel pipe industry.


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Annealing Process of Seamless Steel Pipe

Annealing process of  seamless steel pipe : 1. Fully annealed. It is used to refine the coarse and superheated structure with poor mechanical properties in medium and low carbon steels after casting, forging and welding. The workpiece is heated to a temperature between 30 and 50 ° C above the temper ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 2 days agoPress > Seamless steel pipecarbon steelannealing process

API Coupling for Tubing and Casing Pipe

The  casing pipe  coupling is a kind of oilfield drilling tool, which is mainly used for the connection of the oil pipe, and mainly solves the problem that the existing coupling easily generates fatigue fracture due to stress concentration. The tubing coupling structure is: the tubing end is connec ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 9 days agoPress > couplingcasing pipetubing

Technical Requirements for Heat Preservation of Spiral Steel Pipes

After the heat insulation treatment of spiral steel pipes( SSAW steel pipe ), people are accustomed to call them heat insulation steel pipes.The insulation layer of heat insulation steel pipes is filled with rigid polyurethane foam. The quality requirements for the insulation layer of spiral steel p ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 10 days agoPress > spiral steel pipessaw steel pipeheat preservation +1

Oil Casing Pipe Tempering Process and Category

The tempering process of the  casing pipe  is a heat treatment process of reheating the quenched workpiece to a suitable temperature lower than the lower critical temperature, and cooling to room temperature in a medium such as air or water or oil after a certain period of time. The purpose of temp ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 15 days agoPress > casing pipeTempering ProcessCategory

Specification and Requirements for Seamless Steel Pipe Marking

In the relevant regulations, there are a series of regulations and requirements for  seamless steel pipe  marking. The specific requirements for the logo are as follows: 1. The seamless steel pipe manufacturer's logo should be eye-catching, firm, clear, standardized, and not easy to fade. 2. The m ...

lvy lee - Permanent Steel Manufacturing Co.,Ltd


Posted 17 days agoPress > Seamless steel pipemarking3PE
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