Changsha Xiangjia Metal Materical Co., Ltd.

1. Adjusting the height of the vertical roller to improve the accuracy of  LSAW steel pipes  in producting; 2. Add some pads of different thickness under the lower roll bearing seat of LSAW steel pipe to adjust the accuracy; 3. If the device is pressed on the bottom of LSAW steel pipe, the accuracy can be adjusted by the press on the device; 4. For the frame of the LSAW steel pipe manufacturer, the single frame and their bases, different thicknesses should be added; 5. Choose the right bottom diameter of the lower rollers for frame. We are specializes in the production of spiral steel pipes, etc., has been strictly controlling in quality, and has been deeply supported and trusted by customers for many years.

High-pressure boiler tubes are a kind of seamless steel pipes. Due to the high temperature working environment will have a large amount of water vapor, then the steel pipes will undergo oxidation and corrosion. That make boiler tubes have good corrosion resistance and organizational stability. GB 5310 high-pressure boiler tubes are mainly used to manufacture superheater tubes, reheater tubes, air guide tubes, main steam tubes, etc.. The low and medium pressure boiler tube the national standard 3087, and the high pressure boiler tube the national standard 5310. Usually, the hot-rolled tube of high-pressure boiler tube has an exterior range of 22-530mm, and a wall thickness of 20-70mm. The outer diameter of the cold drawn tube is 10-108mm, and the wall thickness ranges from 2--13mm. The steel grades of high-quality carbon structural steel for high-pressure boiler tubes are 20G, 20MnG, and 25MnG. The steel grades of alloy structural steel are 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12Cr...