Product News
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API product catalog
API American Petroleum Institute standard –API (American Petroleum Institute) abbreviation. API was built in 1919, is one of the first US national Chamber of Commerce Association, is also one of the earliest and most successful developing worldwide standards Commerce Association. API Monogr...Read more -
Coiling temperature for hot rolled strip
Coiling temperature change can make the hot rolled strip steel recrystallization grain size, the quantity of deposition and morphology changes, making it change mechanical properties. Finish rolling temperature must, raise the coiling temperature, causes recrystallized grains becomes large, the m...Read more -
Advantages of Submerged Arc Welding Spiral Steel Pipe
In the spiral pipe production process and the use, there are invented a lot of excellent welding and methods of production, greatly contributed to the steady and rapid development of the industry, but also makes this industry has been optimized in development. Which submerged arc welding is a wel...Read more -
Characteristics of resistance welding steel pipes（ERW steel pipe)
ERW (Electric Resistance Welding) steel pipe is referred to as ERW pipe or HF welded pipe, it has many advantages as following: 1) high production efficiency, low cost, its price is about the the UOE straight seam submerged arc welded steel, 85%; 2) high dimensional accuracy, its roundness (Round...Read more -
Carbon seamless steel pipe process
How the seamless steel pipe is being made? Seamless steel pipes are made by heating solid ingot and pushing a piercing rod to form a hollow tube. Finishing of seamless steel could be done through techniques such as hot rolled, cold drawn, turned, roto-rolled etc. After going through the finishing...Read more -
Banded structure elimination mechanism
Organization of low-carbon steel at room temperature deformation of ferrite and pearlite, if there is the band structure of ferrite and pearlite alternating stripes organization. Low carbon steel seamless pipe band structure, from room temperature to normalizing temperature, when the via Ac1 temp...Read more