Product News
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Oil specical pipe use and categories
OCTG is mainly used for oil and gas well drilling and oil and gas transportation. It includes oil drill pipe, casing, pumping tubing. Oil drilling pipes are mainly used to connect the drill collar and bit and pass the drilling power. Oil casing is mainly used for drilling and completion of the si...Read more -
Maintenance requirements of flexible steel tube
Maintenance requirements of flexible steel tube 1.If the flexible steel tubes haven’t get well maintained, it will affect the progress of production. Here to introduce some of the common methods of maintenance of a flexible pipe: 2.To check whether the flexible pipe rack bolts tightened. 3...Read more -
Low and medium pressure boiler pipe
Low and medium pressure boiler pipe uses steel ingot or solid tube to perforated capillary, and then dial made by the hot-rolled, cold rolled or cold. According to incomplete statistics, China’s seamless pipe production enterprises is about 240 more than a seamless steel pipe unit is abou...Read more -
Improving the corrosion resistance of 304 stainless steel thick-walled tube surface
304 stainless steel thick-walled tube weld contrast before and after surface treatment and processing show that: this method can get rid of scale and temper color. When people raise the 304 stainless steel thick-walled tube surface oxide layer of chromium oxide content, the structure of the oxide...Read more -
Pipeline weld inspection process
Pressure pipe weld appearance basic requirements Before pressure pipeline do the nondestructive testing, visual inspection of weld inspection ruler should meet the requirements. General requirements for pressure pipe weld appearance and surface quality of welded joints are as follows: welding sho...Read more -
Pipe quenching and tempering
Pipe quenching is heated to above the critical temperature, holding time, and then quickly into the hardening agent to a temperature suddenly decreased to a rate greater than the critical cooling rate of rapid cooling, martensite is obtained based not equilibrium microstructure heat treatment met...Read more