China Wholesale 304 Square Steel Pipe Factories - High Quality Seamless Steel Pipe – Xinsuju
China Wholesale 304 Square Steel Pipe Factories - High Quality Seamless Steel Pipe – Xinsuju
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Tel: +8613920018539
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Email: 2317091700@qq.com
China Wholesale 304 Square Steel Pipe Factories - High Quality Seamless Steel Pipe – Xinsuju Detail:
Production Process
The general production process of seamless steel pipe can be divided into cold drawing and hot rolling. The production process of cold-rolled seamless steel pipe is generally more complex than hot rolling. The pipe blank must first be subject to three roll continuous rolling, and the sizing test shall be carried out after extrusion. If the surface does not respond to the crack, the round pipe must be cut by a cutter to cut the blank with a growth of about one meter. Then enter the annealing process. The annealing shall be pickled with acid liquid. During pickling, pay attention to whether there are a large number of bubbles on the surface. If there are a large number of bubbles, it indicates that the quality of steel pipe can not meet the response standard.
The appearance of cold-rolled seamless steel pipe is shorter than that of hot-rolled seamless steel pipe. The wall thickness of cold-rolled seamless steel pipe is generally smaller than that of hot-rolled seamless steel pipe, but the surface looks brighter than that of thick wall seamless steel pipe. The surface is not too rough and the diameter is not too many burrs. The delivery status of hot-rolled seamless steel pipe is generally hot-rolled and delivered after heat treatment. After quality inspection, the hot-rolled seamless steel pipe shall be strictly manually selected by the staff. After quality inspection, the surface shall be oiled, followed by many cold drawing experiments. After hot rolling, the perforation experiment shall be carried out. If the perforation expansion is too large, it shall be straightened and corrected. After straightening, it is transmitted to the flaw detector by the conveyor for flaw detection test. Finally, it is labeled and placed in the warehouse after specification arrangement.
Production Applications
Seamless steel pipe has hollow section and is widely used as pipeline for conveying fluid, such as pipeline for conveying oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe has the same bending and torsional strength and light weight. It is an economic section steel. It is widely used to manufacture structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction. Using steel pipe to manufacture ring parts can improve material utilization and simplify manufacturing processes, Save materials and processing time, such as rolling bearing ring, jack sleeve, etc. steel pipe has been widely used to manufacture. Steel pipe is also an indispensable material for all kinds of conventional weapons. Gun barrel and barrel should be made of steel pipe. Steel pipe can be divided into round pipe and special-shaped pipe according to different cross-sectional area and shape. Because the circular area is the largest under the condition of equal circumference, more fluid can be transported by circular pipe. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, most steel pipes are round pipes. However, the circular pipe also has certain limitations. For example, under the condition of plane bending, the bending strength of the circular pipe is not as strong as that of the square and rectangular pipe. Square and rectangular pipes are commonly used in the framework of some agricultural machines and tools and steel and wood furniture. Special shaped steel pipes with other section shapes are also required according to different purposes.
Product Usage
Seamless steel pipe has hollow section and is widely used as pipeline for conveying fluid, such as pipeline for conveying oil, natural gas, gas, water and some solid materials. Compared with solid steel such as round steel, steel pipe has the same bending and torsional strength and light weight. It is an economic section steel. It is widely used to manufacture structural parts and mechanical parts, such as oil drill pipe, automobile transmission shaft, bicycle frame and steel scaffold used in construction. Using steel pipe to manufacture ring parts can improve material utilization and simplify manufacturing processes, Save materials and processing time, such as rolling bearing ring, jack sleeve, etc. steel pipe has been widely used to manufacture. Steel pipe is also an indispensable material for all kinds of conventional weapons. Gun barrel and barrel should be made of steel pipe. Steel pipe can be divided into round pipe and special-shaped pipe according to different cross-sectional area and shape. Because the circular area is the largest under the condition of equal circumference, more fluid can be transported by circular pipe. In addition, when the ring section is subjected to internal or external radial pressure, the force is more uniform. Therefore, most steel pipes are round pipes. However, the circular pipe also has certain limitations. For example, under the condition of plane bending, the bending strength of the circular pipe is not as strong as that of the square and rectangular pipe. Square and rectangular pipes are commonly used in the framework of some agricultural machines and tools and steel and wood furniture. Special shaped steel pipes with other section shapes are also required according to different purposes.
Production standard
Common foreign standards: ASTM a501-98, ASTN a519-98, JIS g3441.
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The pretty loaded projects management experiences and one to a person support model make the high importance of business enterprise communication and our easy understanding of your expectations for China Wholesale 304 Square Steel Pipe Factories - High Quality Seamless Steel Pipe – Xinsuju , The product will supply to all over the world, such as: Borussia Dortmund, Serbia, Nepal, We solution have passed through the national skilled certification and been well received in our key industry. Our specialist engineering team will often be ready to serve you for consultation and feedback. We are able to also provide you with no cost samples to meet your needs. Best efforts will be produced to offer you the very best service and solutions. For anyone who is considering our business and solutions, please speak to us by sending us emails or get in touch with us right away. As a way to know our products and enterprise. lot more, you'll be able to come to our factory to find out it. We will constantly welcome guests from around the globe to our firm. o build enterprise. elations with us. Please really feel absolutely free to make contact with us for small business and we believe we will share the top trading practical experience with all our merchants.
By Tony from Swedish - 2017.12.09 14:01
Good quality and fast delivery, it's very nice. Some products have a little bit problem, but the supplier replaced timely, overall, we are satisfied.
By Moira from Lebanon - 2017.11.01 17:04