Features

• Stable and uniform chemical contents.
• Constant Quality.
• Good drawing performance.
• High dimension accuracy degree, accuracy degree of Level C up to 80%.
• Smooth surface, less scale, easy to be pickled.
• Automatic bundling with 4 lines by Machine in tidy and good looks.

B/T3429-2002 and internal control standard is executed for this product. QIS steel wire coil for welding could be used to produce welding rod, soldering wire for gas shield and submerged arc welding and so on. The main grade are H08A,ER50-6（E）,H08Mn2SiA,H08MnA and so on. With million tons of annual production, higher market occupation rate and up to 120 customers, this product is in great demand in the domestic market and even sales abroad as well. In recent years, in order to meet the customers’ requirements, some special soldering wire are developed one after another, such as ER50-C,ER50-G,EH14 and EM12K. In 2001, this product was awarded with the “Golden Cup Prize” of metallurgical product quality by China Iron and Steel Association and the steel wire coil for the gas shielded soldering wire won the title of “Famous Brand of Shandong Province” and confirmed again in 2003. The steel for welding rod H08A of QIS has a long history and is popular to many customers. After the realization of continuous casting in 1997 and acceptance firstly by the market, the continuous casting steel for welding rod of QIS H08A is evaluated as the “New Product of National Level” by China Economy and Trading Association and won the prize of Metallurgical Science and Technology progress of ShandongProvince and Excellent New Product of Qingdao City. With the uniform and stable components, steel quality, metallographic structure and mechanical performance, the steel wire coil for welding of ∮5.5mm ER50-6 E produced by our company could be stretched directly to the product of φ1.0mm without interannealing under the condition of higher stretching velocity. This product reaches to the domestic advance level with the features of less welding splashing, smooth and good welding seam and high strength and gained the prize of Metallurgical Science and Technology Progress Prize of Shandong Province and Excellent New Product of Qingdao City respectively in 1999 and 2000. In 2004, on the First Session News Release Conference of Customer Satisfactory Degree Investigation for the Product Quality in Chinese Market holding in Conference Hall of Beijing, the steel wire coil for welding of QIS brand won the title of “No.1 Brand of the Customer Satisfactory for Product Quality in Chinese Iron and Steel Market”. QIS has become the supplier of some large soldering wire production enterprises in domestic market.