Silicon Manganese – SiMn60-25 – High‑Mn & Si Steel Deoxidizing Alloy
Cost‑efficient high‑silicon SiMn alloy with elevated silicon content for effective deoxidation and alloying in steel production
| Main Composition | Mn: 60-63%, Si: 25-26%, C: ≤0.5%, P: ≤0.30%, S: ≤0.05% |
| Form | Lumps (10-60mm), Powder (0-10mm), Custom sizes available |
| Application | Steelmaking deoxidation, alloying agent, foundry industry |
| Standard | GB/T 4008-2008, ASTM A99, ISO 5445 |
Silicon Manganese 60-25 – Product Overview
Silicon Manganese 60-25 (SiMn60-25) is a low‑carbon ferroalloy composed primarily of manganese (60‑63%), silicon (24‑26%) and iron. It is widely used in steel production as a powerful deoxidizer and alloying element. Our premium SiMn60-25 offers an excellent balance of Mn and Si, helping to improve steel quality while reducing overall production costs.
Product Core Advantages
- Superior Deoxidation: Higher silicon content (25‑28%) provides strong deoxidation, resulting in cleaner steel with fewer inclusions.
- Effective Desulfurization: Helps remove sulfur impurities, improving steel quality and mechanical properties.
- Alloying Efficiency: Supplies both manganese and silicon 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 60-25 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 – SiMn60-25
Our Silicon Manganese 60-25 alloy is produced to meet international standards with strict quality control throughout the manufacturing process.
Chemical Composition
| Grade | Mn (%) | Si (%) | C (%) | P (%) | S (%) | Fe (%) |
|---|---|---|---|---|---|---|
| SiMn60-25 | 60.0-63.0 | 24.0-26.0 | ≤0.5 | ≤0.3 | ≤0.05 | Balance |
| 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 |
| SiMn60-28 | 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 – SiMn60-25
Silicon Manganese 60-25 is a versatile high‑carbon alloy with multiple applications in metallurgy. Below are detailed guidelines for its use in various processes.
Steelmaking Deoxidation
In steel production, SiMn60-25 is added during the refining stage to remove oxygen from the molten steel. The elevated silicon content provides strong deoxidation, producing manganese silicate and silica that 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, SiMn60-25 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, crucial for producing high‑quality steel with improved mechanical properties and reduced hot shortness.
Foundry Applications
In cast iron production, SiMn60-25 is used to control the graphite structure and improve mechanical properties. It also helps deoxidize the melt and reduce porosity in castings.
Welding Electrode Production
SiMn60-25 powder is used in the coating of certain types of welding electrodes to provide deoxidizing and alloying elements during the welding process.
Packaging & Logistics – SiMn60-25
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 – SiMn60-25
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 SiMn60-25 and standard SiMn65-17?
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SiMn60-25 contains higher silicon (25-26%) and slightly lower manganese (60-63%) compared to SiMn65-17. It also has a higher carbon content (≤2.5%). This makes it particularly suitable for applications where strong deoxidation and higher silicon addition are desired, while still providing ample manganese for alloying.
What is the typical consumption of SiMn60-25 in steel production?
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Typical consumption ranges from 2‑6 kg per ton of steel, depending on the initial oxygen content, target composition, and steel grade. Because of its higher silicon content, SiMn60-25 may require slightly lower addition rates for deoxidation purposes. Our technical team can provide precise recommendations based on your process parameters.
Can you provide custom sizes or compositions for SiMn60-25?
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Yes, we regularly produce custom sizes and can adjust the composition within the SiMn60-25 specification (e.g., tighter carbon or phosphorus limits). We offer various size fractions from powder to large lumps. Contact our sales team to discuss your specific needs.
What quality certifications do you have for SiMn60-25?
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We hold ISO 9001:2015 certification and our SiMn60-25 complies with international standards including GB/T 4008, ASTM A99, and ISO 5445. We implement strict quality control throughout production, from raw material selection to final inspection.
What is your production capacity and lead time for SiMn60-25?
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We have an annual production capacity exceeding 50,000 metric tons of Silicon Manganese, including SiMn60-25. Standard lead time is 15‑20 days after order confirmation, with options for rush orders depending on production schedule and quantity.
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
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Different Grades of Silicon Manganese Comparison
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