How to classify ferroalloys

In a broad sense, ferroalloys refer to adding deoxidizers, element additives, etc. to molten iron during steelmaking to make steel have certain properties or achieve certain properties.

A product for a requirement. An intermediate alloy composed of iron and one or more elements, mainly used in iron and steel smelting.

Ferroalloys are generally used as: deoxidizer: to remove oxygen from molten steel during steelmaking, and some ferroalloys can also remove other oxygen in steel

Impurities such as sulfur, ammonia, etc. Alloy additives: Add alloy elements to the steel to improve the performance of the steel according to the requirements of the steel composition. Inoculant: Added to the molten iron before casting the cast iron to improve the crystallization structure of the casting.

Classification of ferroalloys

1. Classification of main elements

There are mainly silicon, manganese, chromium, vanadium, titanium, tungsten, molybdenum and other series of ferroalloys.

2. Carbon content classification

High carbon, medium carbon, low carbon, micro carbon, ultra micro carbon and other varieties.

3. Multi-element iron alloys with two or more alloying elements

The main varieties are silicon-aluminum alloy, silicon-calcium alloy, manganese-silicon-aluminum alloy, silicon-calcium-aluminum alloy, silicon-barium-calcium alloy, etc.

4. Classification of production methods

There are blast furnace ferroalloys, electric furnace ferroalloys, out-of-furnace ferroalloys, vacuum solid-state reduction ferroalloys, electrolytic ferroalloys, and

There are special iron alloys such as oxide briquettes and heating iron alloys.