What are the categories of tin ingots?
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What are the categories of tin ingots?
Tin ingots are an industrial raw material, mainly used to manufacture tin alloys and electronic components. According to their production process and purity level, tin ingots can be divided into many different categories.
| Purity(%) | As | Fe | Cu | Pb | Bi | Sb | Cd | Zn | Al | Total |
| 99.99 | 0.0005 | 0.0025 | 0.0005 | 0.0035 | 0.0025 | 0.002 | 0.0003 | 0.0005 | 0.0005 | 0.01 |
| 99.95 | 0.003 | 0.004 | 0.004 | 0.01 | 0.006 | 0.014 | 0.0005 | 0.0008 | 0.0008 | 0.05 |
| 99.90 | 0.008 | 0.0025 | 0.008 | 0.04 | 0.015 | 0.02 | 0.0008 | 0.001 | 0.001 | 0.1 |
First of all, according to different production processes, tin ingots can be divided into two categories: hot tin and cold tin. Hot tin is a tin ingot produced by hot dipping or hot melting. This tin ingot has high purity and uniform organizational structure, and is suitable for the manufacture of industrial products with high requirements. Cold tin is a tin ingot produced by freezing or condensation, and is mainly used in special industries that require high temperature and chemical properties.
Secondly, according to the purity level of the tin ingot and the content of doped elements, the tin ingot can be divided into many different specifications. Generally speaking, the purity level of tin ingots can be divided into three types: grade A tin, grade B tin and grade C tin. Among them, grade A tin has the highest purity and the least impurities, which is suitable for the electronics industry and high-end industrial product manufacturing; grade B tin has the second highest purity and is mainly used in the manufacture of general industrial products; grade C tin has the lowest purity and is mostly used in metallurgy and chemical industries. At the same time, the content of doping elements will also affect the classification of tin ingots. For example, tin ingots doped with lead are used in the manufacture of low-temperature industrial products, and tin ingots doped with silver are used in the high-end electronics industry.
In addition, according to the shape and size of the tin ingot, it can also be divided into many different categories. Common tin ingot shapes include plate tin, square tin, cylindrical tin, etc., and their sizes can have different specifications according to different industrial requirements.
In general, the classification of tin ingots mainly depends on its production process, purity level, doping elements, shape and size and other factors. Different classifications are suitable for the needs of different industries, and with the development of science and technology and the improvement of industrial technology, the requirements for tin ingots are also constantly increasing, so the classification of tin ingots is also constantly improving and refining.
