Hot rolled S690QL steel welding property

Sulfur is a very harmful element in S690QL steel steel. The presence of sulfur will increase the hot brittleness of steel, reduce the various mechanical properties of S690QL steel steel, and reduce the weldability, impact toughness, fatigue resistance and corrosion resistance of steel.

Q345B material is a low-carbon alloy steel, with good overall performance, low temperature performance, cold stamping performance, welding performance and machinability. Q345R steel is a special plate for pressure vessels with a yield strength of 345MPa. It has good comprehensive mechanical properties and technological performance. In addition to the tensile strength and elongation requirements higher than Q345 (16Mn) steel, Q345R is also required to ensure impact toughness.

Our company regularly visits customers, consults and follows up the after-sales service, and directly solves problems for customers. In the use of our steel materials, whether quality problems or not, the after-sales will help solve the problem as soon as possible. We promise free life-long replacement for any product quality problems. The sound after-sales service system make you free from worries.

The strip steel thickness is generally below 6mm, which is convenient for crimping and processing. You should choose the S690QL steel, strip steel specifications according to your own purposes. The specifications and materials used for different purposes are different, so you must confirm it before buying. It is best to ask professionals to give advice before purchasing strip steel, and purchase the specifications and types you need according to the corresponding requirements.