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, second only to iron, aluminum, and magnesium, ranking fourth. It is more than ten times the sum of commonly used metals such as copper, nickel, lead, and zinc. The ores used industrially to produce titanium are rutile, ilmenite, and titanomagnetite. Due to the difficulty of separation and extraction, industrially significant titanium metal was not produced until the 1940s. Therefore, titanium is generally referred to as a rare light metal. Since different fields require different titanium and titanium alloy products, they are processed into plates, rods, tubes, strips, wires, and other shapes that can be further processed to meet the needs of various fields. Among these, titanium plates, rings, and forgings have the widest application.

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的钛板的规格及性能。

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 sheets

（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 the titanium plate is allowed to have slight darkening and local water stains, minor defects, scratches, indentations, pits, and other defects not exceeding half of the thickness tolerance are permitted, but the minimum thickness must be guaranteed. The surface is not allowed to have cracks, peeling, oxidation, indentation, metal and non-metallic inclusions, and other macroscopic defects or 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 must not be less than the minimum allowable thickness.

钛板表面应光亮，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水渍，允许有不超过厚度公差一半的局部缺陷、划痕、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、压痕、金属与非金属夹杂等宏观缺陷以及过碱洗的痕迹。钛板允许沿轧制方向清理局部缺陷，但清理后板材的厚度不得小于最小允许厚度。

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 they possess almost the highest specific strength among metallic materials in the temperature range of -253 to 600 degrees Celsius. They form a thin, hard oxide film in an appropriate oxidizing environment and exhibit excellent corrosion resistance. Additionally, they are non-magnetic and have a low coefficient of linear expansion. These properties make titanium and its alloys the preferred choice as important structural materials for aerospace applications, and subsequently, their use has expanded into shipbuilding, the chemical industry, and other fields, leading to rapid development. Especially in the chemical industry, titanium and titanium alloy products are increasingly used in various products, such as petrochemicals, fibers, pulp, fertilizers, electrochemistry, and desalination. They are used to make heat exchangers, reaction towers, synthesizers, autoclaves, and more. Among these, titanium plates are used as electrolytic plates and tanks in electrolysis and desalination processes, and 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至600摄氏度的温度范围内，其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层薄而硬的氧化物膜，具有优异的耐腐蚀性。此外，它还具有非磁性和线膨胀系数小的特点。这就使钛及其合金首选为重要的宇航结构材料，随后又推广到造船、化工等行业，并得到了迅速的发展。特别是化工行业，越来越多的产品中都用到了钛及钛合金产品，如石油化工、纤维、纸浆、化肥、电化学及海水淡化等工业中做换热器、反应塔、合成器、高压釜等。其中钛板在电解和淡化中作电解板、电解槽，在反应塔、反应釜中作塔身、釜身等。

With the development of science and technology, the application field of titanium is also becoming more and more extensive, such as in medical, automotive, sports, and other aspects. Through these, it truly reflects that as a light metal, titanium's excellent characteristics are being recognized by more and more people, and it is replacing other metals at the fastest speed to enter our production applications, and even into our bodies.

随着科学技术的发展，钛材的应用领域也越来越广泛，如医疗、汽车、体育等方面。通过这些也真切地反映出作为轻金属的钛，其所具有的优良特性被越来越多的人所认识和肯定，并且以最快的速度取代其他金属而进入我们的生产应用之中，甚至进入我们的身体当中。