The Difference Between Metal Silicon 553 And Silicon Metal 2202?

Silicon metal, a crucial industrial material, is widely used in steel – making, cast iron, aluminum production, and silicon optoelectronic devices. It’s often referred to as the “salt” of modern industries. Silicon metal 553 and 2202 are two common grades, and the main difference lies in their impurity content.​

For silicon metal 553, the silicon content is at least 98.5%, with iron content around 0.5%, aluminum content about 0.5%, and calcium content approximately 0.3%. In contrast, silicon metal 2202 has a silicon content of at least 99.5%, iron content of 0.2%, aluminum content of 0.2%, and calcium content of 0.02%. Due to its lower impurity levels, silicon metal 2202 is often used in applications requiring higher purity, such as the production of high – end electronics and aerospace – grade aluminum alloys. Silicon metal 553, with its relatively higher impurity content, is more suitable for general – purpose applications like regular aluminum alloy production.​

As a leading supplier, ZHEN AN INTERNATIONAL CO., LIMITED (ZhenAn) offers distinct advantages. We are a factory – direct seller, eliminating middle – men. We provide free samples, manuals, laboratory test reports, and industry reports. With substantial inventory, we can supply products at any time and customize ferrosilicon according to customer needs.​

To ensure the best and most stable quality, we conduct over four spectrometer and chemical tests for each order, including chemical analysis of raw materials, liquid during melting, particle size distribution, and other physical tests, as well as chemical analysis before loading and transportation. Our products are carefully packed in waterproof plastic woven bags, with 10 kg/25 kg waterproof bags inside 1MT big bags or customized packaging as per customer requests. We also have dedicated staff to closely follow up on all orders and notify customers in a timely manner, and respond to all after – sales requests within 24 hours.​