What are the advantages of high-frequency welding H-beam steel compared with hot rolled H-beam steel
1. Wide range of specifications (section size). Height, web, flange thickness, flange width can be selected according to customer requirements to adapt to the steel plate welding. Can be used for hot-rolled H-shaped steel outside the standard variety.
2, choose a variety of steel. Hot rolled H-beams are mainly Q235B and Q345B, and when small batches of special steel are needed, the production plant is impossible to produce. High-frequency welding H-shaped steel can be selected according to the needs of the steel plate.
3, high precision, good surface quality. Due to the high precision and good surface quality of the steel plate products, the H accuracy after welding is also high and the surface quality is good. The thickness deviation of the steel plate (for high-frequency welding H-beam steel) is generally a few tenths of a millimeter to a few tenths of a millimeter, and the thickness deviation of hot-rolled H-beam steel is a few tenths of a millimeter to 1 millimeter, the difference is nearly 10 times.
4, stable performance, good internal organization. Because from smelting to continuous casting to rolling, steel plate production is higher than the process requirements, equipment capacity, control level, and detection means of hot rolled H-beam steel, the internal organization, chemical composition, and various properties (mechanical properties, process properties, etc.) of high-frequency welding H-beam steel are reliable and stable.
Although there are many advantages above, there are welding residual thermal stress in the welding zone due to the welding forming of high-frequency welding H-beam steel, and the organization of the welding zone is different, there is organizational stress, and it is easy to produce welding defects. With the continuous improvement of welding level and heat treatment level, these adverse aspects are gradually reduced, and now high-quality high-frequency welding H-shaped steel has been used in various fields, including military and aerospace.
If you have more needs and questions about steel, please contact us!
GNEE Group receives visiting customers
GNEE Group office environment