Company Profile
As a professional manufacturer of metallic abrasives, Shengxiang Guanghe is committed to providing global customers with high-quality steel shot, steel grit, and other metallic abrasive products. We understand the decisive impact of raw material quality on final product performance, which is why we strictly select premium calcined anthracite carbon additive in our production process to ensure superior hardness, wear resistance, and service life.
This article details the critical role of calcined anthracite carbon additive in steel shot and grit production, as well as how Shengxiang Guanghe delivers high-performance abrasive solutions through stringent material control and advanced manufacturing techniques.

Overview of Calcined Anthracite Carbon Additive
Calcined anthracite carbon additive (also known as Calcined Anthracite Coal) is a high-carbon material produced by heating high-grade anthracite coal at 1200-1350°C. This process effectively removes volatile components, increasing fixed carbon content to 90-95% while reducing harmful elements such as sulfur and phosphorus, making it an essential additive in steelmaking and abrasive manufacturing.
Key Properties of Calcined Anthracite Carbon Additive
High fixed carbon content (90-95%) – Significantly enhances steel carbon levels for optimal hardness
Low sulfur (≤0.5%) and phosphorus (≤0.05%) – Reduces brittleness and improves toughness
Low ash content (≤5%) – Minimizes impurities during smelting
Excellent electrical conductivity – Ideal for electric arc furnace (EAF) steelmaking
High calorific value – Improves melting efficiency and reduces energy consumption
In the metallic abrasives industry, calcined anthracite carbon additive is crucial for ensuring steel shot and steel grit achieve the desired hardness (HRC 40-65) and wear resistance.
The Role of Calcined Anthracite Carbon Additive in Steel Shot & Grit Production
As a professional metallic abrasive manufacturer, Shengxiang Guanghe strictly controls carbon additive quality in the following production stages:
1. Optimizing Hardness & Wear Resistance
By precisely controlling carbon additive dosage (typically 0.8-1.2% carbon equivalent), we ensure products develop an optimal martensitic structure, allowing steel shot to maintain shape integrity under repeated impact and steel grit to retain sharp edges during continuous cutting operations.
2. Improving Steel Microstructure
High-quality carbon additive refines grain structure and reduces internal defects, resulting in abrasives with:
Higher fatigue resistance
More uniform hardness distribution
Extended service life
3. Reducing Production Costs
Compared to petroleum coke and other carbon sources, calcined anthracite offers:
Higher carbon absorption rate (≥95%)
More stable chemical composition
Better cost-performance ratio

Shengxiang Guanghe's Quality Assurance System
1. Strict Raw Material Selection
We establish long-term partnerships with premium calcined anthracite suppliers, with each batch tested for:
Fixed carbon content
Sulfur, phosphorus, and other harmful elements
Ash and volatile matter
2. Advanced Manufacturing Process
Electric arc furnace (EAF) melting – Precise carbon equivalent control
High-pressure air quenching – Achieves ideal metallographic structure
Multi-stage tempering – Optimizes hardness-toughness balance
3. Comprehensive Quality Testing
Every batch undergoes:
Spectrochemical analysis
Rockwell hardness testing (HRC)
Metallographic inspection
Practical blasting durability tests

Product Applications
Shengxiang Guanghe's steel shot and steel grit products are widely used in:
1. Surface Treatment Industry
Steel structure anti-corrosion pretreatment (SA2.5 cleaning)
Automotive component shot peening
Shipbuilding and repair
2. Foundry Industry
Casting desanding
Precision casting surface finishing
3. High-End Manufacturing
Aircraft engine component shot peening
Critical component strengthening in rail transit
Why Choose Shengxiang Guanghe?
Material advantage – Uses top-grade calcined anthracite carbon additive
Process advantage – Fully automated production ensures batch consistency
Service advantage – Provides professional technical support and customized solutions
Certification advantage – Compliant with ISO9001 and other international standards
Conclusion
As an expert in metallic abrasives, Shengxiang Guanghe continues to refine production techniques to deliver higher-quality, longer-lasting steel shot and grit. We welcome global partners to visit our facilities and explore surface treatment solutions together.
Contact Us Today:
Phone: +86 XXX XXXX XXXX
Email: info@shengxiangguanghe.com
Website: www.shengxiangguanghe.com
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