Ferro Manganese mn78-c1.5 – Medium/Low-Carbon Grade (Mn ≥78%, C ≤1.5%) for HSLA & Specialty Steels
High-manganese ferro alloy with controlled carbon content (max 1.5%), ideal for high-strength low-alloy (HSLA) steels, pipeline steels, and applications requiring minimal carbon pick-up while benefiting from manganese's strengthening effects.
| Main Composition | Mn ≥78.0%, C ≤1.5%, Si ≤1.5%, P ≤0.15%, S ≤0.02% (typical impurities) |
| Form | Lumps (10-80mm), Granules (2-15mm), Powder (0-2mm, 0-10mm), Custom sizes available |
| Application | HSLA steel production, pipeline steels, shipbuilding plates, high-tensile reinforcement bars, low-carbon alloy steels |
| Standard | GB/T 3795-2014, ASTM A99, ISO 5447 |
Ferro Manganese mn78-c1.5 – Product Overview
Ferro Manganese mn78-c1.5 is a medium/low-carbon grade of ferro manganese with a minimum manganese content of 78% and a maximum carbon content of 1.5%. It is produced by refining high-carbon FeMn or through direct smelting of selected manganese ores. Our mn78-c1.5 grade offers a well-balanced impurity profile (Si, P, S) making it particularly suitable for high-strength low-alloy (HSLA) steels, pipeline grades, and other applications where carbon must be tightly controlled while still benefiting from manganese's strengthening and deoxidation properties.
Product Core Advantages
- High Manganese, Low Carbon: Minimum 78% Mn with max 1.5% C, allowing precise alloying without excessive carbon addition.
- Tight Impurity Control: Low phosphorus and sulfur for clean steel applications and improved mechanical properties.
- Versatile Application: Ideal for HSLA steels, pipeline steels, shipbuilding plates, and high-tensile rebars.
- Custom Sizing: Available in lumps, granules, or powder to match your specific melting or feeding requirements.
- Stable Supply: Produced in modern submerged arc furnaces with strict quality control from raw material to finished product.
Typical Application Areas
Ferro Manganese mn78-c1.5 is essential in many industrial processes:
- HSLA Steel Production: Added to achieve high strength-to-weight ratios in automotive, construction, and heavy machinery applications.
- Pipeline Steels: Used in API grade steels (X60, X65, X70) to improve toughness and weldability while maintaining low carbon equivalents.
- Shipbuilding Plates: Enhances strength and low-temperature toughness in marine-grade steels.
- High-Tensile Reinforcement Bars: Provides the necessary strength for seismic-resistant construction.
- Low-Carbon Alloy Steels: Used in gears, shafts, and components requiring case hardening or through-hardening with minimal carbon.
For specific application guidance or custom formulations, contact our technical team for personalized recommendations based on your production requirements.
Technical Specifications – Ferro Manganese mn78-c1.5 & Common Grades
Our Ferro Manganese mn78-c1.5 is produced to meet international standards with strict quality control. Below is the chemical composition of our primary grade (mn78-c1.5) compared with other common industrial grades for reference.
Chemical Composition (Typical Values, % by weight)
| Grade / Designation | Mn (%) | C (%) | Si (%) | P (%) | S (%) | Typical Application |
|---|---|---|---|---|---|---|
| mn78-c1.5 | ≥78.0 | ≤1.5 | ≤1.5 | ≤0.15 | ≤0.02 | Low-carbon FeMn for HSLA, pipeline, and specialty steels |
| mn65-c7.0 | ≥65.0 | ≤7.0 | ≤2.0 | ≤0.2 | ≤0.03 | Low-grade FeMn for cost-sensitive steel production |
| mn70-c7.5 | ≥70.0 | ≤7.5 | ≤1.5 | ≤0.25 | ≤0.03 | Medium-manganese alloy for standard carbon steels |
| mn75-c2.0 | ≥75.0 | ≤2.0 | ≤1.5 | ≤0.2 | ≤0.02 | Medium-carbon FeMn for alloy steels, low-hydrogen practices |
| mn75-c8.0 | ≥75.0 | ≤8.0 | ≤2.0 | ≤0.2 | ≤0.03 | High-carbon FeMn for general steelmaking, deoxidation |
| mn80-c0.7 | ≥80.0 | ≤0.7 | ≤1.2 | ≤0.12 | ≤0.015 | Refined low-carbon FeMn for specialty steels and clean steel applications |
Physical Properties
| Property | Value | Unit |
|---|---|---|
| Melting Point | 1250-1350 | °C |
| Density (at 20°C) | 7.1-7.4 | g/cm³ |
| Appearance | Silvery-gray metallic lumps / granules | - |
| Bulk Density (lumps) | 3.5-4.0 | g/cm³ |
Available Sizes
- Lumps: 10-50mm, 10-80mm, 50-100mm (standard), custom sizes available
- Granules: 2-15mm, 1-6mm
- Powder: 0-2mm, 0-10mm, -100 mesh, -200 mesh
- Custom Sizes: Available upon request to meet specific process requirements
Application Guidelines – Ferro Manganese mn78-c1.5
Ferro Manganese mn78-c1.5 is a versatile material with the following primary applications:
HSLA Steel Production
Manganese is a key alloying element in HSLA steels, typically added at levels of 1.0-1.6%. It strengthens ferrite through solid solution and refines grain size, contributing to higher yield strength and improved toughness. Our mn78-c1.5 grade ensures minimal carbon pick-up, essential for maintaining low carbon equivalents (CE) required for good weldability.
Pipeline Steels (API Grades)
In API 5L grades X60-X80, manganese content is carefully controlled (typically 1.2-1.7%) to achieve the desired balance of strength, toughness, and weldability. The low carbon content of mn78-c1.5 makes it an ideal manganese source for these critical applications.
Shipbuilding & Offshore Plates
Steels for shipbuilding and offshore structures require good low-temperature toughness. Manganese, in combination with fine-grain practices, improves impact properties. Our mn78-c1.5 provides consistent chemistry for meeting classification society requirements.
High-Tensile Reinforcement Bars
Modern seismic-resistant rebars (e.g., Grade 60, Grade 80) rely on manganese for strength without excessive carbon, which could reduce ductility and weldability. mn78-c1.5 is well-suited for producing these high-performance construction materials.
Typical Addition Rates (HSLA Steels)
In HSLA steel production, manganese addition rates typically range from 10 kg to 20 kg per ton of steel, depending on the target specification and base manganese level. Our technical team can assist with optimal sizing and addition practices.
Packaging & Logistics – Ferro Manganese mn78-c1.5
Packaging Options
We offer various packaging solutions to meet different customer requirements and ensure product integrity during transportation:
- 1‑ton Jumbo Bags: Common option, easy to handle with standard equipment.
- 25kg / 50kg Bags: For smaller orders or specific application requirements (e.g., foundries).
- Custom Packaging: We can accommodate special packaging requests, including moisture-proof liners or small drums.
Logistics Information
| Parameter | Details |
|---|---|
| Minimum Order Quantity | 20 metric tons (less for trial orders, subject to availability) |
| Lead Time | 15-20 days after order confirmation |
| Port of Loading | Main Chinese ports (Tianjin, Shanghai, Qingdao, Huangpu) |
| Shipping Options | FOB, CIF, CFR, DAP (depending on destination) |
| Payment Terms | T/T, L/C at sight, or negotiable |
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Access our technical documentation for detailed product information:
Frequently Asked Questions – Ferro Manganese mn78-c1.5
What is the advantage of mn78-c1.5 over high-carbon mn75-c8.0?
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mn78-c1.5 has significantly lower carbon (1.5% max vs. 8.0% max), making it suitable for steels where carbon must be tightly controlled, such as HSLA, pipeline, and low-carbon alloy steels. It allows manganese addition without exceeding carbon specifications, enabling better control over mechanical properties and weldability.
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.
Can mn78-c1.5 be used for producing Hadfield manganese steels?
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Hadfield manganese steels typically contain 12-14% Mn and 1.0-1.4% C. While mn78-c1.5 can be used as a manganese source, the final carbon content in Hadfield steel is usually achieved by adding high-carbon FeMn or recarburizers. Our technical team can recommend the optimal blend of grades for your specific Hadfield steel production.
What sizes are best for ladle furnace additions?
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For ladle furnace additions, lumps in the range of 10-50mm are typical to ensure rapid dissolution while minimizing fines. For wire feeding or automated injection systems, smaller granules (2-15mm) or powder may be required. We can supply custom sizes based on your specific equipment and practices.
Do you provide a certificate of analysis with each shipment?
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Absolutely. Every batch of Ferro Manganese mn78-c1.5 is tested in our ISO 17025 accredited laboratory, and a Certificate of Analysis (COA) showing Mn, C, Si, P, S, and other elements is provided with the shipping documents.
What is your production capacity for mn78-c1.5?
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We have an annual production capacity exceeding 60,000 metric tons of ferro manganese across various grades, including mn65-c7.0, mn70-c7.5, mn75-c2.0, mn75-c8.0, mn78-c1.5, and mn80-c0.7. We can accommodate both containerized and bulk vessel shipments.
Why Choose Our Ferro 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
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HC/MC/LC FeMn Comparison
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