Due to the harsh working environment of the ship, the hull shell is subject to chemical corrosion of seawater, electrochemical corrosion and corrosion of marine organisms and microorganisms; the hull is subjected to large wind and wave impacts and alternating loads; the shape of the ship is complicated by processing methods, etc. Steel for hull structure is strictly required. First of all, good toughness is the most critical requirement. In addition, high strength, good corrosion resistance, weldability, forming properties and surface quality are required.
Shipbuilding Steels Our hot rolled shipbuilding steel is produced in accordance with the relevant Classification Society, examples of which include Lloyds Register and Det Norske Veritas.
Our steel products include steel shipbuilding plate, fabricated steel sections and floor plate for decking. We can also supply bulb flats for plate stiffening, structural steel angles and inverted angles.
Our plates are supplied under the ASTM/ASME specification (ASTM A131 / ASME SA 131) which is the standard specification for Structural Steel for Ships. We offer higher strength shipbuilding steels as standard .High strength steels offer significant cost advantages by reducing the weight of the structure in comparison to the steel used.
The plates are suitable for use in the construction of container ships and large cargo freighters as well as commercial shipping lines such as luxury cruise ships and ferries. Supply options include heavy plates, surface treated plates and pre-fabricated sections. In most cases, the steel can also be supplied as hot rolled coils or cut into lengths (sheets).
These high yield materials are commonly used in the construction of hulls and superstructures for large shipping vessels. The grades are exclusively for shipbuilding use as set out in the standard.
Ship Building Steel Plate,Shipbuilding Steel Plate,Marine Steel Plate,Shipbuilding Plate Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhouiron.com
Yesterday, the National Development and Reform Commission, the Ministry of Science and Technology, the Ministry of Industry and Information Technology and other six ministries jointly issued the "Semiconductor Lighting Energy Conservation Industry Plan", requiring LED lighting energy-saving industry output value to grow at an average annual rate of 30 or so, reaching 450 billion yuan in 2015. The industry believes that "Planning" will be a long-term source of LED listed companies.
Planned output value: an average annual growth of 30
According to the "Planning", by 2015, key equipment and important raw materials will be localized, and major technologies will make breakthroughs. High-end application products have reached the international advanced level, and the energy-saving effect is more obvious. The concentration of LED lighting energy-saving industry has gradually increased, the industrial agglomeration area has been basically established, and the competitiveness of a group of leading enterprises has been significantly enhanced. The R&D platform and standards, testing and certification systems have been further improved.
Among them, the LED lighting energy-saving industry output value increased by about 30 per year, reaching 450 billion yuan in 2015 (including 180 billion yuan for LED lighting applications); LED chip localization rate of more than 80, silicon-based LED chips have made important breakthroughs; large-scale MOCVD equipment The key raw materials have been localized, and the localization rate of testing equipment has reached 70 or above.
Impact: Promote the revitalization of the industrial chain
Guan Jin, senior investment consultant of Chongqing Dongjin, said that the entire LED industry chain is divided into five parts: raw materials, epitaxial materials and chip manufacturing, LED device packaging, LED application products, test instruments and production equipment. For a long time, about 70% of the profits in the LED industry have focused on epitaxial materials and chip manufacturing. However, the publication of the "Planning" and the previous listing of LED lighting products in the government procurement list have, in a sense, the promotion of LED products in the country. The determination also shows that the government's subsidies to the LED industry have begun to tilt from upstream to downstream, helping to revitalize the entire industry chain.
Investment: a good number of listed companies
Liang Wanzhang, chief analyst of Hesheng Fortune, believes that for LED lighting companies in the middle and upper reaches of the industrial chain, the key now is whether they can survive short-term overcapacity and industry integration; for LED lighting companies that manufacture downstream terminals, Preemptive.
Guan Li said that for the secondary market investment, it needs to be tapped from the LED industry chain. Investors can focus on Furi Electronics, Ganzhao Optoelectronics, Sanan Optoelectronics, Silan Micro, Shanghai Belling, and China, which are engaged in epitaxial materials and chip manufacturing. Can Optoelectronics, Tongfang Co., Ltd., Fangda Group, engaged in LED device packaging, Jufei Optoelectronics, Ruifeng Optoelectronics, China Microelectronics, Changfang Lighting, Wanrun Technology, Xiamen Xinda, Guoxing Optoelectronics, providing LED application products Shares, Qinshang Optoelectronics, Sunlight Lighting, Liard, Foshan Lighting, Snowlight, and remote photoelectrics for testing instruments and production equipment.
April 23, 2024