Silicon Metal 421
metal silicon lump

Silicon Metal 421

Silicon Metal Garde: 553, 441, 421, 3303, 2202 Size: 10-100mm

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Product Introduction

421 Silicon Metal

Silicon metal is refined from high-quality industrial silicon and is available in a wide variety. The silicon content of 421 Silicon Metal is 99.2%, the iron content is 0.4%, the aluminum content is 0.2%, and the calcium content is 0.1%.

The particle size of 421 Silicon Metal is 10-100 mm, and it can also be customized according to customer requirements

Uses of 421 Silicon Metal

(1) Silicones Production: Key raw material for silicone monomers, requiring stringent purity control.

(2) Polysilicon Manufacturing: Used in solar and semiconductor industries, with critical limits on boron/carbon impurities.

(3) Aluminum Alloy Additive: Enhances strength, heat resistance, and castability of alloys for automotive and aerospace components.

Product Specification

Brand	Chemical Composition %
	Si≥	Impurity, ≤
	Si≥	Fe	Al	Ca
Si-2202	99.5	0.2	0.2	0.02
Si-3303	99.3	0.3	0.3	0.03
Si-411	99.3	0.4	0.1	0.1
Si-421	99.2	0.4	0.2	0.2
Si-441	99.0	0.4	0.4	0.4
Si-553	98.5	0.5	0.5	0.5

Particle size: 10-100mm, 10- 50mm, 0-3mm, 2- 6mm and 3-10mm, etc.

We can process the 441, 553, 3303, 551, 331, 2202, 421, 753 and other silicon materials into silicon powder of different granularities according to your needs.