Silicon Manganese - SiMn65-17 - Steel Deoxidizing Alloy
High-quality deoxidizer and alloying agent for steel production with excellent desulfurization capabilities
| Main Composition | Mn: 65-68%, Si: 17-19%, C: ≤1.8%, P: ≤0.25%, S: ≤0.04% |
| Form | Lumps (10-100mm), Powder (0-10mm), Custom sizes available |
| Application | Steelmaking deoxidation, alloying agent, foundry industry |
| Standard | GB/T 4008-2008, ASTM A99, ISO 5445 |
Silicon Manganese Alloy Product Overview
Silicon Manganese (SiMn) is a ferroalloy composed primarily of manganese, silicon, and iron. It is widely used in steel production as a deoxidizer and alloying element. Our premium Silicon Manganese alloy offers excellent performance in steelmaking processes, helping to improve steel quality while reducing production costs.
Product Core Advantages
- Superior Deoxidation: More effective than using silicon or manganese separately, resulting in cleaner steel with fewer inclusions
- Excellent Desulfurization: Helps remove sulfur impurities, improving steel quality and mechanical properties
- Alloying Efficiency: Provides both silicon and manganese in a single addition, simplifying the steelmaking process
- Cost-Effective: Reduces overall alloy consumption and processing time compared to separate additions
- Consistent Quality: Rigorous quality control ensures uniform composition and performance batch after batch
Typical Application Areas
Silicon Manganese is essential in various steel production processes:
- Carbon Steel Production: As a deoxidizer and to impart specific properties to the final product
- Stainless Steel Manufacturing: To control composition and improve corrosion resistance
- Alloy Steel Production: For creating steels with specific mechanical properties
- Foundry Applications: In cast iron production to control graphite formation and improve mechanical properties
- Welding Electrode Manufacturing: As a coating component in certain types of welding electrodes
For specific application guidance or custom formulations, contact our technical team for personalized recommendations based on your production requirements.
Technical Specifications
Our Silicon Manganese alloy is produced to meet international standards with strict quality control throughout the manufacturing process.
Chemical Composition
| Grade | Mn (%) | Si (%) | C (%) | P (%) | S (%) | Fe (%) |
|---|---|---|---|---|---|---|
| SiMn65-17 | 65.0-68.0 | 17.0-19.0 | ≤1.8 | ≤0.25 | ≤0.04 | Balance |
| SiMn60-14 | 60.0-63.0 | 14.0-16.0 | ≤2.5 | ≤0.30 | ≤0.05 | Balance |
| SiMn60-25 | 60.0-63.0 | 24.0-26.0 | ≤0.5 | ≤0.3 | ≤0.05 | Balance |
| SiMn60-28 | 60.0-63.0 | 27.0-29.0 | ≤0.5 | ≤0.3 | ≤0.05 | Balance |
| SiMn63-25 | 63.0-66.0 | 24.0-26.0 | ≤0.5 | ≤0.25 | ≤0.04 | Balance |
| SiMn65-25 | 65.0-68.0 | 24.0-26.0 | ≤0.5 | ≤0.25 | ≤0.04 | Balance |
Physical Properties
| Property | Value | Unit |
|---|---|---|
| Melting Point | 1200-1300 | °C |
| Density | 6.3-6.5 | g/cm³ |
| Appearance | Metallic gray, angular lumps | - |
| Bulk Density | 3.2-3.5 | g/cm³ |
Available Sizes
- Lumps: 10-60mm, 10-100mm, or customized sizes
- Powder: 0-3mm, 0-10mm for specific applications
- Custom Sizes: Available upon request to meet specific process requirements
Application Guidelines
Silicon Manganese is a versatile alloy with multiple applications in metallurgy. Below are detailed guidelines for its use in various processes.
Steelmaking Deoxidation
In steel production, Silicon Manganese is added during the refining stage to remove oxygen from the molten steel. The deoxidation reaction produces manganese silicate and silicon dioxide, which float to the surface as slag.
Recommended addition: 2-5 kg per ton of steel, depending on the initial oxygen content and desired final composition.
Alloying in Steel Production
As an alloying agent, Silicon Manganese imparts specific properties to the final steel product:
- Manganese increases strength, hardness, and hardenability
- Silicon improves strength while maintaining ductility and enhances electrical properties
Desulfurization
Silicon Manganese aids in sulfur removal, which is crucial for producing high-quality steel with improved mechanical properties and reduced hot shortness.
Foundry Applications
In cast iron production, Silicon Manganese is used to control the graphite structure and improve mechanical properties. It also helps in deoxidizing the melt and reducing porosity in castings.
Welding Electrode Production
Silicon Manganese powder is used in the coating of certain types of welding electrodes to provide deoxidizing and alloying elements during the welding process.
Packaging & Logistics
Packaging Options
We offer various packaging solutions to meet different customer requirements and ensure product integrity during transportation:
- 1-ton Jumbo Bags: Most common option, easy to handle with standard equipment
- 25kg Bags: For smaller orders or specific application requirements
- Custom Packaging: We can accommodate special packaging requests
Logistics Information
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 20 metric tons |
| Lead Time | 15-20 days after order confirmation |
| Port of Loading | Main Chinese ports (Tianjin, Shanghai, Qingdao) |
| Shipping Options | FOB, CIF, CFR (depending on destination) |
| Payment Terms | T/T, L/C at sight |
Download Center
Access our technical documentation for detailed product information:
Frequently Asked Questions
Is it possible to entrust a third-party inspection to check the quality before shipment?
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Certainly, we support third-party inspections by internationally recognized quality inspection agencies such as SGS and BV to verify product quality before shipment. The inspection covers product appearance, weighing, dimensions, and chemical composition analysis. The entire inspection process will be documented with photos and written records, which will be provided to you together with the final inspection report. This ensures you have no concerns regarding product quality.
What is the difference between Silicon Manganese and Ferro Manganese?
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Silicon Manganese contains both silicon and manganese, while Ferro Manganese is primarily manganese with iron. Silicon Manganese is more efficient for deoxidation as it provides both deoxidizing elements in a single addition. The choice depends on the specific steelmaking process and desired final composition.
What is the typical consumption of Silicon Manganese in steel production?
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The typical consumption ranges from 2-5 kg per ton of steel, depending on factors such as the initial oxygen content, desired final composition, and specific steel grade being produced. Our technical team can provide more precise recommendations based on your specific process parameters.
Can you provide custom sizes or compositions?
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Yes, we regularly produce custom sizes and compositions to meet specific customer requirements. We can adjust the chemical composition within certain limits and provide various size fractions from powder to large lumps. Contact our sales team to discuss your specific needs.
What quality certifications do you have?
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We hold ISO 9001:2015 quality management system certification and our products comply with international standards including GB/T, ASTM, and ISO. We implement strict quality control throughout the production process, from raw material selection to final product inspection.
What is your production capacity and lead time?
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We have an annual production capacity of over 50,000 metric tons of Silicon Manganese. Standard lead time is 15-20 days after order confirmation, but we can accommodate rush orders depending on production schedule and quantity. Larger orders may require slightly longer lead times.
Why Choose Our Silicon Manganese
20+ Years Experience
Specialized in ferroalloy production with deep industry knowledge
Strict Quality Control
Every batch tested to ensure consistent composition and performance
Global Delivery
Reliable logistics network ensuring timely delivery worldwide
Quality & Production Showcase
Explore our quality control process, production facilities, and customer interactions
Different Grades of Silicon Manganese Comparison
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