New requirements for the application of titanium and titanium alloy plates in the chemical industry
Titanium is an inert metal, its chemical symbol is ti, its atomic number is 22, and it is a silver-colored metal. Specific gravity is 4.51 and melting point is 1668℃. It is very abundant in the earth's crust, it is second only to iron, aluminum, magnesium, ranking fourth, more than the sum of commonly used metals copper, nickel, lead, zinc more than ten times.The ores used industrially to produce titanium are rutile, ilmenite and titanium magnetite. Due to the difficulty of separation and extraction, titanium metal of industrial significance was not produced until the 1940s. Therefore, titanium is generally referred to as a rare light metal. Due to the different titanium and titanium alloy products needed in different fields, people process them into plates, rods, tubes, strips, wires and other shapes that can be further processed to meet the needs of different fields, among which titanium plates, titanium rings, titanium forgings and other applications are most widely used.
钛是一种惰性金属，它的化学符号是ti，原子序数是22，是一种银色的金属。比重4.51，熔点1668℃。它在地壳中的储量非常丰富，它仅次于铁、铝、镁，居第四位，比常用金属铜、镍、铅、锌的总和还多十几倍。工业上用来生产钛的矿石有金红石、钛铁矿和钛磁铁矿。由于分离提取困难，具有工业意义的金属钛直到本世纪四十年代才生产出来。因而一般把钛称为稀有轻金属。由于不同领域不同产品需要的钛及钛合金产品不同，人们将其加工成板、棒、管、带、丝等可在做深加工的形状提供给广大需求者以满足不同领域的需求，其中以钛板，钛环、钛锻件等应用最为广泛。
The following shares the specifications and performance of titanium plates commonly used in the chemical industry.
以下分享化工行业常用钛板的规格及性能。
一、Standards
一、标准
Implementation standard: GB/T3621-2007
执行标准：GB/T3621-2007
二、Product grades, states and specifications
二、产品牌号、状态和规格
（1）Room temperature mechanical properties of titanium plates
（1）钛板室温力学性能
（2）High temperature mechanical properties of titanium sheet
（2）钛板高温力学性能
三、Surface quality
三、表面质量
The surface of titanium plate should be smooth and metallic in nature. The plate is allowed to be delivered with a sandblasted surface. The surface of titanium plate is allowed to have slight darkening and local water stains, local defects, scratches, indentations, pits and other defects not exceeding half of the thickness tolerance are allowed, but the minimum thickness should be guaranteed. The surface is not allowed to have cracks, peeling, oxide, indentation, metal and non-metal inclusions and other macroscopic defects and traces of over alkali cleaning. Titanium plate is allowed to clear local defects in the direction of rolling, but the thickness of the plate after removal is not less than the minimum allowable thickness.
钛板表面应光洁，呈金属本色。板材允许以喷砂表面交货。钛板表面允许存在轻微的发暗和局部的水迹，允许有局部缺陷，不超出厚度公差之半的划伤、压痕、凹坑等缺陷，但应保证最小厚度。表面不允许有裂纹、起皮、氧化皮、压折、金属与非金属夹杂等宏观缺陷及过碱洗的痕迹。钛板允许顺轧制方向清楚局部缺陷，但清除后板材的厚度不小于最小允许厚度。
In addition, the titanium plate should not be delaminated.
另外，钛板不应有分层。
四、Application of titanium plate
四、钛板的应用
Titanium and titanium alloys have low density and high tensile strength, and it has almost the highest specific strength among metallic materials in the range of -253-600 degrees Celsius. It forms a thin, hard oxide film in a suitably oxidizing environment and has excellent corrosion resistance. In addition, it is non-magnetic and has a low coefficient of linear expansion. This makes titanium and alloys preferred as important structural materials for astronautics, and then extended to shipbuilding, chemical industry and other fields, and has been rapidly developed.Especially in the chemical industry, titanium and titanium alloy products are used in more and more products, like petrochemical, fiber, pulp, fertilizer, electrochemical and desalination industries, doing exchangers, reaction towers, synthesizers, autoclaves and so on. Among them, titanium plates are used as electrolytic plates and electrolytic tanks in electrolysis and desalination, and are used as tower bodies and kettle bodies in reaction towers and reactors, etc.
钛及钛合金的密度小，抗拉强度高，在-253-600摄氏度范围内，它的比强度在金属材料中几乎最高。它在适当的氧化性环境中可形成一种薄而坚硬的氧化物膜，具有优异的耐腐蚀性。此外，它还具有非磁性、线膨胀系数小的特点。这就使钛及合金首选为重要的宇航结构材料，随后又推广到舰船制造、化学工业等领域，并且得到了迅速的发展。特别是化工领域，越来越多的产品中都用到了钛及钛合金产品，像石油化工、纤维、纸浆、化肥、电化学及海水淡化等工业中，做交换器、反应塔、合成器、高压釜等。其中钛板在电解和污水淡化中用作电解板、电解槽，在反应塔、反应釜中被用作塔身和釜身等。
With the development of science and technology, the application field of titanium is also more and more extensive, such as medical, automotive, sports and other aspects. Through these also really reflect the titanium as a light metal, it has excellent characteristics more and more people know and can set, and with the fastest speed to replace other metals and into our production applications, and even our body.
随着科学技术的发展，钛材的应用领域也越来越广阔，如医疗、汽车、体育等方面。通过这些也真切的反应出钛作为一种轻金属，它所具有的优良特性越来越多的被人们所认知和可定，并且以最快的速度取代其他金属而融入我们生产应用领域，甚至我们的身体当中。
