Other Steel Industrial Co., Ltd. Shanghai Bao Tu (18,221,922,120 Chen), the main Baosteel galvanized sheet, Baosteel galvanized coil, galvanized coil, galvanized coil, such as electrolytic plate, galvanized can be cut to length Kaiping, please call. Galvanized sheet refers to a layer of zinc-plated steel. Galvanized is economical and effective method for preserving a frequently used. About half of the world's zinc production processes are used for such a role is galvanized steel to prevent corrosion of the steel surface subjected to extend the life of the steel surface coated with a layer of metallic zinc, zinc-coated steel sheet which is called plated zinc plate. Second, the classification according to the production and processing methods can be divided into the following categories: ① hot-dip galvanized steel. The steel sheet was immersed in molten zinc bath, so that the surface adhesion layer of zinc sheet steel. At present, continuous galvanizing production process, that is, to become immersed in a continuous roll of steel melting zinc plating bath is made of galvanized steel; ② alloyed galvanized steel. This steel is manufactured by hot dipping, but after the trough, immediately it is heated to about 500 ℃, it generates an alloy of zinc and iron film. This galvanized coatings with good adhesion and weldability; ③ galvanized steel. Such manufacturing galvanized steel sheet having excellent workability by plating. But the coating is thin, the corrosion resistance is better hot-dip galvanized sheet method; ④-sided and double-sided difference galvanized steel plating. Single-sided galvanized steel, i.e., only one side of galvanized products. In terms of welding, painting, rust treatment, processing, has a better than two-sided galvanized sheet flexibility. To overcome the disadvantages of single uncoated zinc, another one on the other side is coated with a thin layer of zinc galvanized sheet, ie the difference between double-sided galvanized sheet; ⑤ alloy, composite galvanized steel. It is steel with zinc and other metals such as lead, zinc alloy and even made into composite plating. This steel sheet has both excellent rust resistance, and good coating performance; addition to the above five kinds, there are color galvanized steel, galvanized steel coated printing, polyvinyl chloride laminate galvanized steel sheet and the like. But still the most commonly used hot-dip galvanized sheet. The main production plant and imported production country: ① domestic main production plant: all-pass, Wuhan Iron and Steel, Anshan Iron and Steel, Baosteel Group, China Metallurgical Hengtong, Shougang, Panzhihua, Handan Iron and Steel, Maanshan, etc; ② foreign main producing countries Japan, Germany, Russia France, South Korea. Third, the appearance (1) Surface state: galvanized coating process due to the different treatments, different surface condition, such as ordinary zinc flower, fine spangle, smooth spangle, spangle-free phosphate surface treatment and the like. German standard also provides surface level. (2) galvanized sheet should have good appearance, without the use of harmful product defects, such as non-plating, holes, cracks and scum, over thick plating, scratches, dirt chromate, white rust. Foreign standards for specific provisions cosmetic defects are not very clear. When ordering for some specific defects shall be set out in the contract. Fourth, galvanized amount (1) galvanized standard values: galvanized an effective method commonly used galvanized zinc coating thickness expressed. Galvanized amount of units of g / m2. Japan, the United States and Germany standard galvanized sheet steel galvanized provisions in Table 6-7-4. (2) Determination: sampling requirements and test methods, see "8" in the relevant standard. Cold-six, the mechanical properties (1) Tensile test: Table 6-7-4 galvanized sheet steel index (unit: g / m2) JISG3302 code Z12 Z18 Z22 Z25 Z27 Z35 Z43 Z50 Z60 galvanized 120,180,220,250,270 350 430 500 600 ASTMA525 code A40 A60 G60 G90 G115 G140 G165 G185 G210 galvanized 122 183 183 275 351 427 503 564 640 DIN1716 Code 100 200,275,350,450,600 galvanized 100 200 275 350 450 600 ① performance indicators: the general said , the only structures, stretching and deep drawing galvanized sheet has tensile performance requirements. Which requires structural galvanized sheet yield point, tensile strength and elongation; stretch with only requires elongation. This section provides specific values, see "8" in the relevant product standards; ② Test Method: Test methods and general sheet steel same, see test method standards listed in the "8" and the standards provided by the "ordinary carbon steel sheet steel." (2) Bending test: bending test is a major project to measure process performance sheet, but national standards for a variety of galvanized sheet requirements are not the same, except for the structure of the US standard level, the rest not require bending and tensile tests. While Japan is in addition to the structure level, the building of corrugated board and corrugated board rest are general requirements for the bending test. ① Requirements: General requirements bent galvanized sheet 180, the outer surface may not have the zinc layer detachment base plate may not have cracked and broken; ② Test method: sampling site and see the number "9" in the relevant product standard, bending angle of 180, than the inner thickness of the test sample interval, see the relevant product standard "8" listed. Six, the chemical composition of the chemical composition of galvanized sheet substrate requirements, standards of different countries, such as Japan does not require, the United States is required. Generally not as finished product inspection. Seven, packaging cut into cut lengths of galvanized sheet and coil galvanized sheet packing two kinds. General metal packaging, moisture-proof paper lined outside to Tieyao child strapped to the bay. To securely tied to prevent friction between the interior galvanized sheet. Eight foreign standard cold rolled galvanized sheet 0.35 * 1200 * C DC01-DC06 / SPCC Baosteel Power Conference Baoshan galvanized coils 0.38 * 1165 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.4 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.4 * 1140 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.5 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.5 * 1125 * C DC51D-DC56D plated Baoshan Baosteel Power Conference Zinc volume 0.5 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coils 0.55 * 1045 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.6 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.6 * 1100 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.6 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.6 * 1260 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coils 0.65 * 1145 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.7 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.7 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coils 0.75 * 1499 * C DC51D-DC56D plated Baoshan Baosteel Power Conference Zinc volume 0.8 * 1193 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.8 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.8 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.8 * 1410 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.8 * 1610 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.8 * 1635 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 0.9 * 1200 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.0 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.0 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.0 * 1250 * C DC51D-DC56D plated Baoshan Baosteel Power Conference Zinc volume 1.0 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.0 * 1499 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.2 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.2 * 1125 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.2 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.4 * 1045 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coils 1.48 * 1165 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.5 * 1100 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.5 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.6 * 1100 * C DC51D-DC56D plated Baoshan Baosteel Power Conference Zinc volume 1.6 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 1.8 * 1100 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 2.0 * 1000 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 2.0 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 2.0 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 2.3 * 1135 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 2.3 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 2.5 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 3.0 * 1250 * C DC51D-DC56D Baosteel Power Conference Baoshan galvanized coil 3.0 * 1250 * C DC51D-DC56D Baoshan Baosteel Power Conference ( 1) Product Standard: JIS G3302-94 galvanized steel; JIS G3312-94 painted galvanized iron; JIS G3313-90 (96) electro-galvanized steel sheet and strip; generally require hot-dip galvanized steel sheet; ASTM A526-90 commercial grade galvanized steel sheet; ASTMA 527-90 (75) engages molding grade galvanized steel sheet; ASTMA528-90 leveling deep galvanized sheet steel; roofing and siding with hot-dip galvanized steel sheet; ASTMA444- 89 ditches with galvanized sheet steel; ASTM A446-9 3 grade galvanized steel sheet structure; ASTMA599-92 cold rolled galvanized steel sheet; ASTMA642-90 special deoxy deep galvanized steel sheet leveling; ΓOCT7118-78 plated zinc sheet steel; DINEN10142-91 part a low carbon galvanized steel strips and sheets; DINEN1012-92 Part 2 galvanized sheet steel. (2) Test Method Standard: JIS H0401-83 hot dip galvanizing test methods; DIN50952- 69 hot dip galvanizing test methods. * Galvanized sheet product use, technical specifications, performance and specifications galvanized sheet steel products are mainly used in construction, light industry, automobile, farming and commercial fishing industries. Construction industry which is mainly used in the manufacture of industrial and civil corrosion roof, roof grille; light industry with its manufacturing appliance housing, civil chimneys, kitchen utensils, automobile industry, mainly for corrosion and other car parts manufacturing ; agriculture, animal husbandry do use food storage, frozen meat and fish processing equipment and so on; business is mainly used as a storage and transportation of materials, packaging, and other appliances. Galvanized sheet specifications, performance, specification list galvanized steel (volume) chromated surface treatment L Y oiled LY chromated plus GZ light machine oiled surface structure of the entire surface of the structure uses normal light spangle (Z) under normal conditions also galvanized zinc coating condensate derived general purpose light the whole spangle spangle (GZ) by light machine finishing of galvanized plate, galvanized sheet surface leveled main spangle used as a substrate so that the color-coated galvanized steel plate processing performance wide tensile yield strength elongation% 180o ordinary cold-formed PV - 270-500 - d = 0, in good condition, not dezincification deep drawing SC - 270-380 ≥30 d = 0, in good condition, not dezincification mechanical occlusion JY - 270-500 - d = 0, in good condition, not dezincification ultra deep drawing SC - 270-380 ≥30 d = 0, in good condition, not dezincification structure JG ≥ 240 ≥370 ≥18 d = 0, in good condition, not dezincification - - - - - nine, developing a galvanized sheet status quo. Galvanized sheet market profile in recent years, the production of galvanized sheet increases every year, while imports are growing year by year, the growth rate even higher than the increase in production volume; repeat after deducting production statistics, galvanized plate consumption is about 5.27 million tons. After 1999, imports of galvanized sheet for the first time exceeded production, self-sufficiency rate of less than 50% of domestic products, and has decreased year by year. Consumption Situation (1) galvanized sheet in recent years, increasing domestic production of galvanized sheet is to increase the amount of hot galvanized sheet production, 1998-2002, galvanized sheet production capacity from 970,000 tons to 2.2 million tons ; while imports grew even faster, from 37 million tonnes in 1998 of 1.56 million tons in 2002; apparent consumption by 1.32 million tons to 3.67 million tons. 2002, HDG domestic product self-sufficiency rate of about 60%, when domestic production and imports of hot-dip galvanized sheet volume increased over the previous year, especially in larger growth in imports was mainly due to supply caitu production of thin gauge galvanized sheet demand increases, leading to self-sufficiency rate of domestic product declined. (2) galvanized sheet and consumption status in recent years, with the rapid development of the domestic car market, a large number of export, security doors development of the market of household appliances, basic popularization of personal computers, electronic products, so that growth in demand for galvanized sheet too fast . At present, the production scale of galvanized sheet, either in quantity or from the variety, quality, it can not meet the needs of the domestic market. 1998-2002, the domestic production of galvanized sheet grew slowly, from 17 million tons to 400,000 tons; while imports grew rapidly, from 730,000 tons to 1.78 million tons; apparent consumption increased from 870,000 tons to 2.16 million tons. Domestic self-sufficiency rate of less than 20%. 2. Analysis of the increase in domestic consumption of galvanized sheet galvanized sheet mouth mainly imported pull. In recent years, galvanized sheet imports increased year by year, the variety of imports is mainly galvanized sheet, but the proportion of galvanized sheet imports decreased year by year; accordingly, the proportion of hot dip galvanized sheet imports increased every year. In 2003, imports of hot-dip galvanized sheet for the first time exceeded the imports of galvanized plate. Solemn promise: the same quality than price! The same price than service! The same service than efficiency! Equally efficient than the reputation! Operating principles: customer first, quality, variety, reasonable prices. Shanghai Bao Tu Industrial Co., Ltd. Contact: Chen Tel: 18221922120