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Silicomanganese

Silicomanganese

CAS Number: 12743-28-1

Molecular Formula: CH5FeMnPSi

About Silicomanganese

Silicomanganese (CAS 12743-28-1) is increasingly positioned as a vital ferroalloy within the American steelmaking sector, where domestic manufacturers utilize its specific manganese-to-silicon ratios to optimize deoxidation and desulfurization in the production of high-strength, low-alloy (HSLA) steels. High-carbon sil...

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 (evaluation) · 1 MT (commercial)

Lead Time

3 – 5 weeks estimated

Delivery Terms

FOB*

Packaging

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

US Availability

US Facility Inventory

Documentation

US SDS · COA · TDS · Specification sheet

US Regulatory & Quality Information

TSCA status*

US SDS / HazCom*

GHS classification*

ISO 9001:2015 site*

DOT shipping classification*

FDA status*

EPA status*

California Prop 65*

Reliable US supply chain

Regulatory compliance

On-time delivery

Technical expert support

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