Tangshan Heavy Plate Co.,Ltd. is a Sino-foreign joint venture company controlled by Hegang Co., Ltd., located in Tangshan City, Hebei Laoting Economic Development Zone, adjacent to Jingtang Port, the main port in northern China. The unique geographical advantage creates favorable conditions for logistics, especially It is the proposal of the Bohai Rim Economic Circle and the construction of a coastal economically strong province, which has created good development opportunities for medium and heavy plate companies.

The medium and heavy plate company was put into operation in August 2006. There are two 1580 m cubic blast furnace, 1 1780 m cubic blast furnace in the ironmaking area; one molten iron pretreatment, three 120-ton converters, three LF refining furnaces, and one One RH refining furnace, four slab continuous casting machines (the 2# casting machine has the functions of electromagnetic stirring and heavy reduction); there are four slab heating furnaces in the medium and heavy plate rolling area, and a 3500mm double-stand rolling line, a 3500mm single-stand rolling line, real-time temperature control of the intermediate billet, and ultra-fast cooling device. Among them, the continuous casting slab under heavy pressure and the real-time temperature control of the intermediate slab are the first enterprises in China to use this technology, which creates conditions for the development of extra-thick steel plates and the improvement of the structure and performance of the core of the plate.

At present, the medium and heavy plate company has a production capacity of 5 million tons of commercial billets. The medium and heavy plate production line is mainly used for high-performance construction steel, bridge structure steel, ship and marine steel, mold steel, boiler and pressure vessel steel , Pipeline steel, low-alloy high-strength structural steel and carbon structural steel, etc. are the leading products of 8 categories and 136 grades. The specifications cover thickness 6-120mm, width 800-3200mm, and length 3000-18000mm.

The main products of the plate company include:

The steel products for steel structures mainly include high-performance steel for construction and steel for bridges. The product strength level can reach up to 460MPa, and the thickness specification covers 6-100mm. It can be delivered in the state of hot rolling, normalizing and normalizing rolling.

Die steel is mainly used in the manufacture of molds in the machining industry, including mold bases, cores and other components of mold steel. The plate has good internal quality, uniform hardness and long service life. Since the establishment of the factory, the company has continuously expanded the mold steel market, and currently includes low-end SM45, SM50 to mid-to-high-end P20, 1.2311, 4140, 1.2738 and other steel grades.

Construction machinery steel is required to have high strength, excellent impact toughness and good welding performance, and is the preferred material for construction machinery components. The company can stably produce construction machinery steels of various specifications ranging from low-end Q235, Q345 to mid-to-high-end Q550, Q690.

Ship and marine engineering steel: suitable for manufacturing oceangoing, coastal and inland waterway navigation ships, fishing boats and marine engineering, with good weldability and low temperature toughness. The steel grades of structural steel for hull of Medium Plate Company have been certified by nine major classification societies, and the scope of certification includes A, B, D, AH32, DH32, AH36, DH36 and other grades.

Energy steel has good comprehensive performance and corrosion resistance, mainly including pressure vessel steel, pipeline steel and wind power steel. The main steel types of pressure vessel steel are Q245R, Q345R, Q370R and low temperature resistant vessel steel 16MnDR, etc. The thickness specifications cover 8-80mm, mainly sold to East China and North China. For pipeline steel, B→X70 grade pipelines have been successively developed, with good conventional mechanical properties and drop hammer performance, and the thickness specification of X70M grade pipeline steel with guaranteed drop hammer performance has been expanded to 20mm. In 2017, pipeline steel started from scratch, from low-grade to high-end, and achieved sales of more than 11,000 tons.

Weathering steel has good corrosion resistance in the atmosphere and is widely used in the construction of railway vehicles, bridges, factory buildings and landscape landmarks. The medium and heavy plate weathering steel varieties include national standard Q235NH, Q355NH, Q355GNH, and jointly developed American standard A588 GRA/GRB, European standard S355J2W, acid-resistant steel 09CrCuSb and iron standard Q345NQR2 with Beijing University of Science and Technology and Northeastern University ton.

Participated in key domestic projects including Oujiang Beikou Bridge, the world's first three-tower and four-span double-layer steel truss suspension bridge, the construction of Foshan International Sports, Culture and Performing Arts Center, one of the main stadiums of the 2019 Basketball World Cup, the Ring Expressway in the capital area, Beijing Tongzhou Administrative Sub-center, China World Trade Center Phase III, Tencent Beijing Headquarters, Lenovo Group Headquarters Building, Hong Kong-Zhuhai-Macao Bridge Passenger Inspection Building, Hengqin International Financial Center Building, Changchun Nanhu Bridge Renovation Project, Shanxi Linfen Bridge Project, Shenyang Shenhe Cultural and Sports Center, Changchun International Huayuan International Logistics Park, Wuhan Tianhe Airport, Shanxi Linfen Bridge Project, Jiangxi Jiujiang Financial Plaza, Tianjin Metropolis, Wuhan Changqing Road Elevated Project of Beijing-Guangzhou Railway Line, Wenzhou Aojiang Fourth Bridge, Shanxi Linfen Bridge, Zhengzhou 107 Counseling Rapid Project .

The medium and heavy plate company actively expands the international market, and the number of product exports continues to increase. The products are exported to South Korea, Japan, India, Southeast Asia, South Asia, Middle East and many other countries and regions, as well as markets in Africa, Europe and South America.