The history of oil casing development. After nearly 20 years of hard work, China's oil casing production has gone from scratch, from low price to high...
Date:2019-02-28 Tags:Oil casing development history
What is the type of line pipe tempering? According to the performance requirements of pipeline steel pipes, depending on the tempering temperature, te...
Date:2019-02-28 Tags:What is the type of line pipe tempering?
Structural performance comparison of seamless steel tubes. Carbon structural steel pipe: This kind of structural steel pipe is generally smelted by co...
Date:2019-02-28 Tags:Performance comparison of structural seamless steel tubes
The application of galvanized flat steel has also expanded correspondingly with the development of industry and agriculture. Therefore, the enterprise...
Date:2019-02-27 Tags:The difference between galvanized flat steel and galvanized round steel
The main difference between different hot-dip galvanizing methods is how to activate the surface of the tube after acid leaching to improve the qualit...
Date:2019-02-27 Tags:How galvanized steel pipe is galvanized
Ellipse area formula S = ∏ (pi) × a × b (where a, b are the long semi-axes of the ellipse and the length of the short semi-axis respectively). Then th...
Date:2019-02-27 Tags:Calculation method of galvanized pipe weight
The difference between the manufacturing process of galvanized pipe and galvanized steel pipe: galvanized steel pipe and hot-dip galvanized square pip...
Date:2019-02-27 Tags:The difference between galvanized pipe and galvanized steel pipe
The galvanized square tube belongs to the price transition period. The focus of the government regulation is still to adjust the surplus under the pre...
Date:2019-02-27 Tags:The price of galvanized square tube is in the transition period
Hot rolled products are generally divided into two categories, one is hot rolled slabs and the other is hot rolled coil. Hot-rolled thick plate refers...
Date:2019-02-22 Tags:What are the classifications of hot rolled products?
Hot-rolled steel is a steel that has been heated and rolled at a high temperature. Its strength is not very high, but it is sufficient for our use. It...
Date:2019-02-22 Tags:What is the difference between hot rolled steel and cold rolled steel?
Steel heat treatment is a process that changes the structure and properties of solid steel materials through certain processes such as heating, heat ...
Date:2019-02-22 Tags:Progress in on-line heat treatment of hot rolled steel
Through trial and error, flame retardant and antimony trioxide were selected as flame retardant formulations and blended with polyethylene pellets. C...
Date:2019-02-21 Tags:Talking about the anti-combustion performance of welded pipes
The hot-rolled precision welded pipe is made by continuous casting round billet or initial rolling slab, walking beam heating furnace, high-pressure w...
Date:2019-02-21 Tags:Hot rolled precision welded pipe use
manufacturer introduced the surface treatment method of large-diameter hot-dip tube. 1. Cleaning: Clean the surface of the steel with solvents and em...
Date:2019-02-21 Tags:Surface treatment technology for hot-dip steel pipes
What are the methods for calculating the parts of small-diameter seamless steel pipes ? (1) Primary production process of hot rolled seamless steel p...
Date:2019-02-21 Tags:Small-caliber seamless steel pipe component accounting method
