What Is The Purchase Guide Of High Carbon Silicon

I. Core Preparations Before Procurement: Clarifying Needs and Standards

1. Composition and Performance Requirements

Silicon Carbon Ratio: Silicon content must be ≥65%, carbon content controlled between 10%-25%, and impurities such as sulfur and phosphorus must comply with industry standards (e.g., GB/T 3795-2014).

Physical Form: Select standard blocks (10-50mm) or powder according to the steelmaking process to ensure feeding efficiency and deoxidation effect.

2. Functional Requirements Matching

High carbon silicon must have deoxidation, carbonization, and desulfurization functions. Prioritize products with uniform composition and a density ≥3.2g/cm³ to avoid steel contamination due to poor physical properties.

II. Core Indicators for Selecting High-Quality Manufacturers

1. Qualification Review

Production Licenses and Certifications: Verify the manufacturer's ISO 9001 certification and environmental assessment report (e.g., discharge permit). Focus on production enterprises in silicon-rich mineral resource areas such as Inner Mongolia and Ningxia.

Industry Reputation: Check customer reviews through third-party platforms (such as Alibaba) and be wary of small factories with no historical cooperation records.

2. Production Capacity and Technology

Smelting Technology: Prioritize manufacturers using electric furnace or submerged arc furnace processes to ensure component stability.

Supply Capacity: Assess the manufacturer's ability to fulfill contracts during periods of silica raw material shortages or electricity price fluctuations, referring to historical cases (such as the 2024 ferrosilicon market supply disruptions due to power issues).

III. Price Negotiation and Market Risk Mitigation

1. Price Fluctuation Response Strategies

Market Monitoring: Refer to ferrosilicon price indices published by platforms such as Mysteel. The spot price of high-carbon silicon in January 2025 was approximately 6600-7000 RMB/ton. Be wary of abnormally low prices (such as below 6000 RMB/ton, which may indicate adulteration).

Long-Term Agreements: Sign floating price clauses with reputable manufacturers, stipulating price adjustments based on silica purchase prices and electricity price fluctuations.

2. Cost Transparency Requirements

Manufacturers are required to provide details such as the source of silica (e.g., silica from Ningxia with a silicon content ≥98%) and the proportion of electricity costs (electricity costs in Inner Mongolia account for more than 40% of costs) to avoid hidden price increases.

If you want to know more about purchasing high carbon silicon, please send us an email: info@kexingui.com