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Production process of welded steel pipe
The development of steel pipe production technology began with the rise of bicycle manufacturing, the development of petroleum in the early 19th century, the manufacture of ships, boilers, and aircraft during the two world wars, the manufacture of thermal power boilers after the Second World War, the development of the chemical industry, and The drilling and transportation of oil and natural gas have strongly promoted the development of the steel pipe industry in terms of variety, output and quality.
2020
11-11
Steel prices have risen by more than a thousand steel companies generally turn losses into profits
Since the first half of last year, steel prices have begun to recover thanks to a series of measures such as supply-side reforms and elimination of backward production capacity. Taking rebar as an example, the average price on March 9 last year was 2475 yuan/ton, and on March 9 this year, it has risen to 3852 yuan/ton, an increase of 35%.
2020
11-11
China Steel Association: Steel prices in the domestic market continued to rise slightly in September
According to data from the China Iron and Steel Association, in September, the domestic steel market demand was strong, and steel prices continued to rise. Affected by the rapid release of steel production capacity, pressure on the supply side has risen, and the price increase of steel has narrowed.
2020
11-11
The difference between seamed stainless steel pipe and seamless stainless steel pipe
Stainless steel pipe is a hollow long round steel, which is widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical structural parts. In addition, when the bending and torsion strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also often used to produce various conventional weapons, barrels, shells, etc.
2020
11-11
What is the difference between carbon steel pipe and carbon steel coil pipe
Carbon steel pipe made of carbon steel coil pipe is a seam pipe. Compared with seamless steel pipe, the quality of seamless steel pipe is better than that of seam pipe due to the quality assurance of material and weld. The pressure components of pressure equipment must use seamless steel pipes. Generally, non-pressure-bearing structures or structural parts can use carbon steel coil pipes with slits.
2021
06-09
Introduction to basic knowledge of hot rolled steel coil
Hot rolled steel coil is a steel plate made of slab as raw material, heated by rough rolling and finishing rolling mill. Hot rolled steel coil is an important steel variety, which mainly reflects the needs of industrialization. It has excellent properties such as high strength, good toughness, easy processing and forming, and good weldability.
2021
06-17
Flattening and slitting process of stainless steel coil
The raw material processing of stainless steel coil before pipe making is also very critical, and every process is a factor that determines the quality of pipe fittings. Today, I will take you to learn about the flattening and slitting process of stainless steel coil panels.
2021
07-09
How to do the anti-corrosion treatment of quality seamless steel pipe
The quality seamless steel pipe generally used by everyone must be treated with corresponding anti-corrosion and anti-rust treatment. The general anti-corrosion work is divided into three processes
2021
08-27
Oxidation treatment of weather resistant steel plate
The main technical support point of weather resistant steel plate used as exterior wall material is that weather resistant steel is superior to ordinary steel in terms of corrosion resistance.
2021
09-10
The difference between quality weather resistant steel plate and ordinary steel plate
The quality weather resistant steel plate is corroded in natural climates, and a dense oxide layer is formed on the surface of the steel, which prevents the oxygen and water in the atmosphere from penetrating into the matrix and plays a role in oxidation; while ordinary steel After rusting, not only the protection of the oxide layer will not appear, but the rust will be more serious.
2021
09-17
Production process of quality weather resistant steel plate
The quality weather resistant steel plate is made by adding phosphorus, nickel, copper and other trace elements to the ordinary steel plate during the smelting process.
2021
09-24
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Tel : 0086 18264535555
Email : cmgc@sdcmsteel.cn
WhatsApp：0086 18264535555
Add : Phoenix Industrial Park, Dongchangfu District, Liaocheng City, Shandong Province