Product News
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Hot press forming of pipe tee
Hot press forming of pipe tee is to flatten the tube blank larger than the pipe tee diameter to the size of pipe tee diameter, and open a hole at the position of drawing branch pipe; the tube blank is heated, put into the forming die, and put into the stamping die of drawing branch pipe; under th...Read more -
Hot press forming of pipe tee
Hot press forming of pipe tee is to flatten the tube blank larger than the pipe tee diameter to the size of pipe tee diameter, and open a hole at the position of drawing branch pipe; the tube blank is heated, put into the forming die, and put into the stamping die of drawing branch pipe; under th...Read more -
What are black steel pipes?
Black steel pipes are non-galvanized steel pipes. Black steel pipe, named for the scaly, dark iron oxide coating on its surface. It is used in applications that do not require galvanized steel. After applying a small amount of fitting compound to the threads, they are threaded onto the threaded p...Read more -
Reasons for Uneven Wall Thickness of Large-diameter Seamless Steel Pipes
The problem of uneven wall thickness of large-diameter seamless steel pipes is relatively common in the production of seamless steel pipes, and it is also a headache for customers. The unevenness of the thick-walled seamless steel pipe is mainly reflected in the uneven spiral wall, the uneven lin...Read more -
How to Ensure the Quality of ERW Welded Pipe in Production?
From the analysis data of ERW welded pipe scrap, it can be seen that the roll adjustment process plays a very important role in the production of welded pipes. That is to say, in the production process, if the rolls are damaged or severely worn, part of the rolls should be replaced in time in the...Read more -
GB Standard for Welded Steel Pipes
1. Welded steel pipes for low-pressure fluid transportation (GB/T3092-1993) are also called general welded pipes, commonly known as black pipes. It is a welded steel pipe for conveying general lower pressure fluids such as water, gas, air, oil and heating steam and other purposes. Steel pipes are...Read more