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Silicomanganese

Silicomanganese

CAS Number: 12743-28-1

Molecular Formula: CH5FeMnPSi

About Silicomanganese

Silicomanganese (SiMn) is a specialised dual-element master alloy widely used in heavy steelmaking, automotive alloy component production, structural metallurgy, and mechanical foundry operations due to its superior deoxidising efficiency, slag-fluidising mechanics, and alloying compatibility. Our high-purity Silicoman...

Silicomanganese Specifications

CAS Number
12743-28-1
Molecular Formula
CH5FeMnPSi
Molecular Weight
186.89 g/mol
IUPAC Name
manganese;silicon
Canonical SMILES
C.[Si].[PH].[Mn].[Fe]
InChI Key
RWUPVOYAIPTMJJ-UHFFFAOYSA-N
InChI
1S/CH4.Fe.Mn.HP.Si/h1H4;;;1H;
HSN No
72023000
Molecular Weight
186.89 g/mol
Precautionary Statement Codes
P261, P264+P265, P272, P280, P302+P352, P305+P351+P338, P321, P333+P317, P337+P317, P362+P364, and P501
Hazard Classes and Categories
Skin Sens. 1 (96.4%) Eye Irrit. 2A (100%)

Synergistic Melt Deoxidization & Cleaning

Combined furnace additive where silicon and manganese work together to lower the thermodynamic activity of dissolved oxygen more effectively than separate additions

Spring Steel High-Elasticity Alloying

Introduces precise silicon fractions required to elevate the yield-to-tensile strength ratio and increase fatigue limits in heavy-duty automotive and rail suspension spring steels

Slag Fluidity & Inclusion Separation Modification

Promotes the fast formation of low-melting-point manganese silicate (MnSiO₃) inclusions that coalesce and float cleanly out of the melt into the surface slag

Structural Merchant Bar Alloying

Blended directly into construction structural steel profiles, commercial wire rods, and angles to improve mechanical toughness and hardness parameters

Steelmaking Deoxidizer and Desulfurizer

A critical ferroalloy used in the steel industry to eliminate oxygen and sulfur from molten steel, facilitating the production of cleaner steel with uniform chemistry

Alloying Agent

An essential additive used to enhance the mechanical properties of various steel grades, such as strength, hardness, toughness, and wear resistance, particularly in structural, spring, and stainless steels

Foundry Inoculant

A specialized additive utilized in iron casting and foundry applications as a source of silicon and manganese to improve the quality and performance of cast components

Welding Consumable Component

A vital ingredient in the manufacture of welding rods and wires, where its deoxidizing properties ensure cleaner welds and increased durability in welded structures.

Silicomanganese FAQs

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

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