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Ferroalloys

Ferroalloys Business

With our two major production bases in Tokushima and Kashima, we harness our proven technology and time-tested techniques to provide our customers with stable supplies of high-quality manganese.
Our portfolio includes not only ferromanganese but also other ferroalloy products. These quality products have been well received by our customers, sustaining Nippon Denko’s reputation as a leading manufacturer of ferroalloys.
In addition our Tokushima and Hidaka Plants are producing diverse fertilizers indispensable for soil improvement, by making use of the soil-improving properties of by-products obtained from ferroalloy production.

Main Products

High-carbon ferromanganese, Medium-carbon ferromanganese

Feature
Substantially improves the hot workability and weldability of steels
Application
Used as an additive, deoxidizing agent or desulfurizing agent for molten steels

Type Symbol General Standard Composition by Element (%)
Mn C Si P S
High-carbon ferromanganese FMnH1 73–78 ≦7.3 ≦1.2 ≦0.40 ≦0.02
SLP ferromanganese SLP(MC) 87.2–95 ≦0.2 ≦1.2 ≦0.05 ≦0.02

SLP ferromanganese

Feature
Boasts higher manganese content than standard ferromanganese with lower carbon and phosphorus contents
Application
Used mainly as an additive for high-quality steels

Ferrosilicomanganese

Feature
A composite alloy mainly made of silicon and manganese
Application
Used as a manganese- and silicon-based additive, deoxidizing agent or desulfurizing agent for molten steels

Ferrosilicon

Feature
Used broadly for steels in large quantities and generate a large amount of heat during oxidation without substantially lowering the molten steels temperature
Application
Used as a deoxidizing agent for steel production, silicon additive or casting adhesive

Ferrovanadium

Feature
Improves the strength of steel, effectiveness of heat treatments and weldability of steels
Application
Used as vanadium additive for tool steels, heat-resistant steels, high-strength low-alloy steels and cast metals

High-carbon ferrochromium

Feature
Used in large quantity as a chromium additive for stainless steels
Application
Used as chromium additives for steels such as stainless steel, alloyed steel and cast steel

Ferroniobium

Feature
Improves mechanical properties of steels in the same way as vanadium and helps to reduce low-temperature brittleness
Application
Used as a niobium additive for stainless steels, high-tensile steels, heat-resistant steels, nickel-based alloys and other special steels; permanent magnets