Ferro Silicon 72
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Natural Block Ferro Silicon 72 And 75
Natural Block Ferro Silicon 72 And 75

Natural Block Ferro Silicon 72 and 75

Name: China Natural Block Ferro Silicon 72 and 75 Manufacturers Suppliers Factory - Free Sample - T.F Industrial
Brand: New Sail
SKU: 192063768

Inttroduction:Natural block ferrosilicon is a naturally formed ferrosilicon alloy mainly composed of silicon and iron, commonly used in the metallurgical industry as a deoxidizer or alloy additive.
Origin:Shaanxi Province, China
HS Code:7202210000

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Product Introduction

Natural Block Ferro Silicon 72/75 is a high-silicon ferroalloy (FeSi) composed mainly of iron and 72–75% silicon. Supplied in natural lump form, it is widely used as a deoxidizer and alloying additive in steelmaking and casting to improve steel purity, strength, and overall metallurgical performance.

Product parameter

Model Number

Natural Block Ferro Silicon 72 And 75

Brand Name

New Sail

Chemical Composition

Si Fe Al Ca C P S

Size

10-50mm,10-80mm,10-100mm or as client's requirement

Package

1MT/bag or as client's requirement

Supply Ability

2000MT/month

Min Order Quantity

25MT

Grade	Si% (min)	Al% (max)	C% (max)	P% (max)	S% (max)	Ca% (max)	Mn% (max)
FeSi72	72	2.0	0.1	0.04	0.02	1.5	0.4
FeSi75	75	2.0	0.1	0.035	0.02	1.0	0.4
Other grades can be customized!

product-1706-1279

features

High Silicon Content

Ensures strong deoxidation efficiency and stable alloying performance for consistent steel quality.

Controlled Impurity Levels

Low Al, C, P, and S content minimizes inclusions and improves metallurgical cleanliness.

Natural Lump Form

Supplied in original block form, reducing processing steps and offering cost advantages for bulk buyers.

Flexible Size Customization

Available in standard sizes (10–50 mm, 10–80 mm, 10–100 mm) or customized grading to fit different feeding systems.

Stable Chemical Composition

Uniform composition batch-to-batch supports predictable performance in large-scale steel production.

product-1701-1276

applications

Steelmaking: Used as a deoxidizer and alloying additive to improve strength, hardness, and elasticity.

Casting Industry: Acts as an inoculant and nodulizer, especially in ductile iron production.

Ferroalloy Production: Serves as a reducing agent due to strong silicon–oxygen affinity.

Special Steel Production: Enhances metallurgical properties for high-performance steel grades.

why choose us

Production Capability

Equipped with modern submerged arc furnace (SAF) systems, medium-frequency induction furnaces, and automated alloy smelting lines
Integrated raw material pre-treatment system, including crushing, screening, and precise batching to ensure stable furnace input
Advanced temperature control and real-time monitoring system during smelting process to improve consistency and energy efficiency
Strong output capacity designed to support long-term bulk wholesale and contract supply

Quality Assurance

Strict incoming raw material inspection system
In-house chemical laboratory testing center, equipped with spectrometer (OES), carbon-sulfur analyzer, and moisture detection equipment
Each batch undergoes pre-shipment composition verification and sampling inspection
Compliance with international industrial standards such as ISO quality management system (ISO 9001)
Support for third-party inspection services (SGS, BV, CIQ or customer-designated inspection agencies)
Batch traceability system ensuring full production record tracking from furnace to shipment

OEM & Custom Supply

Custom production based on customer-required chemical composition and specification standards
Flexible packaging solutions: 1MT / 25kg / 50kg woven bags, jumbo bags (FIBC), steel drums or container bulk loading
Private label service (branding, marking, labeling)

Global Supply & Logistics

Export-oriented supply chain system with experience serving Europe, Middle East, Southeast Asia, South America and Africa markets
Cooperation with major international ports and freight forwarders for stable shipment arrangements
Flexible shipping solutions: FCL (Full Container Load) and bulk vessel shipment (break bulk / dry bulk)
Professional loading supervision to ensure accurate weight, safe packing, and moisture protection
Timely coordination of customs clearance documents to reduce shipping delays

Customer Support & Service

Dedicated sales and technical team with fast response
Pre-sales technical support for grade selection, application guidance, and cost optimization suggestions
Order tracking system with regular production and shipping updates
After-sales support covering: Quality claim handling, technical feedback response, long-term cooperation improvement suggestions

FAQ

Q1: What is the difference between FeSi 72 and FeSi 75?

A: The main difference is silicon content-FeSi 72 contains ≥72% Si, while FeSi 75 contains ≥75% Si. Higher silicon content provides stronger deoxidation efficiency and higher alloying yield, making FeSi 75 suitable for higher-grade steel requirements.

Q2: What sizes and forms are available?

A: Natural block ferro silicon is typically supplied in lump sizes, and can also be processed into granules or powder depending on downstream processing needs.

Q3: How is ferro silicon used in steel production?

A: It is added during the final stage of steelmaking for deoxidation. Silicon reacts strongly with oxygen to form SiO₂, reducing oxygen content and improving steel quality and consistency.

Q4: What packaging and supply options are common for bulk orders?

A: Standard export packaging includes 1 MT jumbo bags or bulk container loading. Custom packaging and particle size specifications are typically available for OEM or large-volume buyers.

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