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Large Diameter Seamless Steel Pipe

large diameter seamless steel pipe is one of main products in our company, the maximum outer diameter is 36inch, the maximum wall thickness can reach 100mm. All pipes can be inspected by third party or clients.

Description

Large diameter seamless steel pipe


Large diameter seamless steel pipe is one of our featured products.

For example, OD 660.4mm, 711.2mm, 762mm, 812.8mm, 863.6mm, 914.4mm.


Production technique of large diameter seamless steel pipe


hot expansion is the process of processing pipes into larger diameter pipes.

This process is performed by using an engineered-size mother pipes, heating it to 900deg C by induction heating, and pushing it over a controlled ID mandrel to expand the pipe to a piping size. After that, it is tested and finished to all major industry specifications.

Hot expansion steel pipes not only meets the needs of customers, but also reduces production cost. 

So it saves the cost of customers.

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Surface condition of large diameter seamless steel pipe


The oxide layer would be formed on the outer and inner surface of seamless steel pipes after heat treatment. The oxide layer on outer surface was removed by sand blasting, but the oxide layer on inner surface can only be removed by polishing


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Application of large diameter seamless steel pipe

1. In our daily life, large diameter seamless steel pipes are a common channel, mainly used in sewers and water pipes. Our tap water is delivered to each of us through large diameter seamless steel pipes, our lives. Water is inseparable from large diameter seamless steel pipes. The water pipes will also be applied to large diameter seamless steel pipes, which will enable us to source water continuously.

2. With the development of science and technology, the South-to-North Water Transfer and gas transportation have become simple things, and these are inseparable from large diameter seamless steel pipes. large diameter seamless steel pipes are mainly used for gas transportation, and various The transportation of natural gas and other gas, when the gas and water supply in one place is insufficient, the transportation pipeline is needed at this time, and the large diameter seamless steel pipe is such a transportation pipeline.

3. large diameter seamless steel pipe has a good load capacity. In our big cities, in addition to being used in our daily life, large diameter seamless steel pipes are widely used in our cities, for example. There are frequent bridges in our city, such as cross-sea bridges. Bridges are basically constructed with large diameter seamless steel pipes. It is the main body of these large buildings. With large diameter seamless steel pipes, our The city will be better and more secure.

4. large diameter seamless steel pipes have a swollen contribution to agriculture and heavy industry. In agriculture, this steel pipe is mainly used for irrigation, providing water for agricultural irrigation and reducing farmers' labor. Heavy industry needs to transport some oils, and large diameter seamless steel pipes have good sealing properties, ensuring that fuel does not leak, and it is a good transportation pipeline.


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