Silicon Metal 421 #
Trademark：421# 
Specifications：(10-100) mm 90% 
Packing：Ton bag 
Appearance：Silver gray block 
Net weight：1,000 kg 
Gross weight：1,003 kg 
Applications: Hard and brittle, it is made of quartz with 98.5% SiO₂ and other materials by smelting, and it is a basic industrial raw material widely used in aerospace, electronics, chemical industry, metallurgy, and insulation refractories industries.
  

Name Code	Composition
	Si content (%)	Impurities (%)
		Fe	Al	Ca	P	B
MY 2202	>99.5%	≤0.2	≤0.2	≤0.03	-	-
MY2202A	>99.5%	≤0.2	≤0.2	≤0.02	≤0.003%	-
MY2502	>99.5%	≤0.25	≤0.2	≤0.03	-	-
MY3103	>99.4%	≤0.3	≤0.1	≤0.03	-	-
MY3303	>99.3%	≤0.3	≤0.3	≤0.03	≤0.005%	≤0.0035%
MY 411	>99.2%	≤0.4	＜0.1	≤0.1	≤0.005%
MY 421	>99.2%	≤0.4	＜0.2	≤0.1	-	-
MY 441	>99.0%	≤0.4	≤0.4	≤0.1	-	-
MY 553	>98.5%	≤0.5	≤0.5	≤0.3	-	-