company news about Understand Silicon Metal 553 And 441 Before You Buy

There are three common forms of silicon metal: natural block, standard block, and silicon metal powder. Adding metal silicon to metals such as aluminum and iron can improve or enhance the excellent functions of metals. Silicon Metal 553 and 441 are the two most common specifications in silicon metal products.

Silicon Metal 553

China's domestic silicon metal grade 553 requirements:

The content of iron element is not more than 0.5%. The content of aluminum element is not more than 0.5%. The calcium content is not more than 0.3%. In terms of content, the silicon content in metal silicon should be as high as 98.5% or more. Silicon metal is often used in the aluminum industry.

When purchasing silicon metal grade 553, you can ask for samples from silicon metal manufacturers for laboratory analysis. In this way, the products that you can easily buy can meet your own requirements.

The metal silicon 553 is divided into an oxygen-passing type silicon 553 and an oxygen-impermeable type silicon 553 . The two also differ in price.

Under normal circumstances, the price of oxygen-passing silicon metal grade 553 is generally around 12,000 yuan / ton. The price of oxygen-free silicon metal grade 553 is generally around 11,000 yuan / ton. If the silicon 553 supplier's quotation is too far from the standard price, then you should pay attention to the reliability of the products.

Silicon Metal 441

Requirements for China's domestic silicon metal grade 441:

The content of iron is not more than 0.4%. The proportion of aluminum element is not more than 0.4%. The calcium content is not more than 0.1%. In terms of content, the silicon content in metallic silicon should be as high as 99.0% or more. Silicon metal 441 is also the favorite of many aluminum plants.

Compared with 553, silicon 441 has a higher silicon content. Therefore, the price of silicon metal 441 grade is relatively expensive.