Main causes of subsurface bubble formation in welding of S690QL

Zhengzhou BBN steel company was established in 2000. After more than ten years of development, it has formed a professional operation pattern integrating R&D, production, sales and after-sales service. In recent years, welding of S690QL based on a high starting point and high technology, the company has vigorously developed various steel products welding of S690QL and deep-processed parts, steel structures, precision castings, seamless pipes.

We have very professional workshops for thin plates/ coils, welding of S690QL, medium and general thick plates. And also special workshop to produce thick plates that thickness is more than 300mm. we produce the steel plate include carbon and low alloy high strength steel plate, shipbuilding and offshore platform steel plate, boiler and pressure vessel steel plate, weather resistant steel plate, pipeline steel plate, alloy steel plate, automobile structure steel plate, and gas cylinder steel coil etc.

Q215 steel has good plasticity and weldability. Q235 steel has certain strength, plasticity, toughness and weldability. Q235 steel is easy to punch and can meet the use of steel structure. Q255 steel has high strength, good plasticity and weldability, and its application is not as extensive as Q235 steel. Q275 steel has high strength, poor plasticity and weldability. Q275 steel is used for shafts, connecting rods, gears, keys and metal components with high strength requirements.

We have our own factory, including the production and manufacturing of steel pipes, with a special welding of S690QL steel pipe manufacturer and storage warehouse. Welcome to visit our factory, we will provide customers with high quality products that meet the requirements. And has the perfect welding of S690QL after-sale service guarantee system, lets the customer save the worry and the labor.

Tags: