HS Code for Ferrosilicochromium

Ferrosilicochromium is classified under HS code 7202.50. This classification is part of the international Harmonized System (HS) for the categorization of ferro-alloys. According to Chapter 72, Note 1(c), ferro-alloys are alloys in primary forms, such as lumps or pigs, used as additives in the manufacture of other steels or as deoxidants. Ferrosilicochromium is a ternary alloy consisting of iron, silicon, and chromium. It is typically produced by the reduction of chrome ore and silica in an electric submerged arc furnace. This alloy is a critical intermediate material in the production of stainless steel, particularly when using the Argon Oxygen Decarburization (AOD) process. The silicon in the alloy acts as a reducing agent to recover chromium from the slag back into the metal melt, while the chromium content provides the necessary corrosion resistance to the steel. The specific subheading 7202.50 is reserved for this alloy to distinguish it from binary ferro-alloys like ferro-chromium or ferro-silicon. For correct classification, the alloy must contain more than 8% silicon and more than 10% chromium by weight, following the general thresholds for ferro-alloys defined in the Chapter 72 notes. If the silicon content is negligible, the product would likely revert to a ferro-chromium classification under 7202.41 or 7202.49.

Products Included

• Ferro-silico-chromium lumps
• Low carbon ferrosilicochromium
• Ferrosilicochromium fines and powders
• Ternary Fe-Si-Cr alloys for metallurgy

Common Misclassification

Ferrosilicochromium is often confused with Ferrochromium (HS codes 7202.41 and 7202.49). The primary difference is the silicon content; 7202.50 must contain a significant, intentional amount of silicon (typically over 8%). It may also be confused with Ferrosilicon (HS codes 7202.21 and 7202.29) if the chromium content is overlooked. Accurate chemical analysis is required to distinguish between these codes.

FAQ

What is the HS code for Ferrosilicochromium?

The HS code for Ferrosilicochromium is 7202.50, categorized under the ferro-alloys heading.

Why is silicon added to this chromium alloy?

Silicon is added to act as a reducing agent during the steel refining process, helping to minimize chromium loss in the slag and lowering the overall carbon content of the final steel.