Products

Aluminum granules and aluminum blocks are widely used in steelmaking. Both can significantly improve the quality and performance of steel, while reducing slag volume and fuel consumption.

Silicon-iron pellets (typically spherical or lump-shaped products made from silicon-iron alloy) are used in steel plants primarily to reduce costs through the following key mechanisms:

Ferrochromium is an iron alloy composed of chromium and iron. Based on carbon content, it is classified into high-carbon ferrochromium (C ≤ 10%, 4–8%), medium-carbon ferrochromium (C ≤ 4.0%, 0.5–4%), low-carbon ferrochromium (C ≤ 0.5%, 0.15–0.5%), and ultra-low-carbon ferrochromium (C ≤ 0.15%, 0.06%).

Calcium silicide is a calcium–silicon alloy produced from silica, lime, and coke under high-temperature reducing conditions.

Ferrosilicon is an iron-silicon alloy composed of iron and silicon, made by smelting with coke, steel scraps, and quartz (or silica) in an electric furnace. It is used as a Decomposer and alloying agent in steelmaking.

Phosphorite iron (a symbiotic compound containing 20–26% phosphorus and 0.1–6% silicon) also contains impurities such as silicon, manganese, carbon, and sulfur. Based on phosphorus content, it is classified as FeP24 (P23–25), FeP21 (P20–23), FeP18 (P17–20), and FeP16 (P15–17).

Ferromanganese is an iron alloy composed of manganese and iron. It is classified into high-carbon ferromanganese (C ≤ 2–8%), medium-carbon ferromanganese (C ≤ 0.7–2%), low-carbon ferromanganese (C ≤ 0.7–0.15%), and ultra-low-carbon ferromanganese (C ≤ 0.15%).

Metallic calcium granules are produced by directly crushing metallic calcium ingots into 0–2 mm and 0–3 mm particles, with a uniform particle size distribution and a bright, lustrous appearance. They are packaged in sealed iron drums purged with argon gas, with each drum containing approximately 180 kg.

Calcium-aluminum slag is produced by the reaction of metallic aluminum and highly active alumina with oxygen in the molten steel, initially establishing a strong reducing atmosphere. The alumina and calcium oxide present in the slag then combine to form a calcium aluminate slag system, which has a melting point of approximately 1300°C and a high sulfur capacity, thereby facilitating the removal of sulfur from the molten steel. In addition, this slag exhibits excellent white-slag-forming properties.

Silicon-aluminum-barium-calcium is a composite Decomposer and desulfurizer for steelmaking. It is suitable for deoxidation in various steelmaking processes, especially for oxygen-deoxidation in converter steelmaking.

Silicon manganese ball are a multifunctional alloying agent that simultaneously deoxidizes, increases carbon content, and adjusts the manganese level in steel. With uniform particle size, high density, and high purity, they do not contaminate the molten steel upon use, thereby enhancing steelmaking efficiency, saving energy, reducing the consumption costs of raw and auxiliary materials, and delivering effective deoxidation and carburization.

Silicon-carbon alloy can replace ferrosilicon, silicon carbide, and carbon-increasing agents, reducing the amount of Decomposer used for deoxidation in converter smelting. The chemical composition, mechanical properties, and internal control quality of the steel are all superior to those of the traditional process.