Close up appearance of mid-carbon ferro manganese 75% lump showing surface texture and shape

mid-carbon ferro manganese 75% lump with ruler for size reference and chemical specifications table, top-down view angle 1

mid-carbon ferro manganese 75% lump with ruler for size reference and chemical specifications table, top-down view angle 2

ferro manganese lump products in warehouse with table showing Mn 65-80%,C 0.7-8.0%,size 10-80mm

Medium Carbon Ferro Manganese Mn75-C2.0 – High-Mn, Low-Carbon Grade for HSLA & Specialty Steels

High-purity medium carbon ferro manganese with 75-78% manganese and low carbon (≤2.0%). Ideal for HSLA, medium-carbon steels, and applications requiring minimal carbon pickup.

Main Composition	Mn 75-78%, C ≤2.0%, Si ≤1.8%, P ≤0.18%, S ≤0.02% (typical for Mn75-C2.0)
Form	Lumps (10-80mm), Granules (2-15mm), Powder (0-2mm, 0-10mm), Custom sizes available
Application	HSLA steels, medium-carbon alloy steels, high-quality castings, welding consumables, low-carbon alloying
Standard	GB/T 3795-2014, ASTM A99, ISO 5446

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Medium Carbon Ferro Manganese Mn75-C2.0 – Product Overview

Medium Carbon Ferro Manganese grade Mn75-C2.0 is a high-manganese, low-carbon alloy produced by refining high-carbon ferro manganese or through silicothermic processes. With manganese content of 75-78% and carbon strictly limited to ≤2.0%, this grade is specifically designed for steel grades where carbon must be tightly controlled, such as HSLA, medium-carbon alloy steels, and high-quality castings. It provides the alloying benefits of manganese without excessive carbon addition.

Product Core Advantages

Low Carbon, High Manganese: 75-78% Mn with ≤2.0% C allows precise control of final carbon in steel, essential for many specialty grades.
Tight Impurity Control: Low silicon (≤1.2%), phosphorus (≤0.20%), and sulfur (≤0.03%) ensure clean steel metallurgy.
Versatile Application: Suitable for HSLA, spring steels, wear-resistant steels, and high-quality cast irons.
Custom Sizing: Available in lumps, granules, or powder to match your furnace charging or injection requirements.
Consistent Quality: Produced under strict process control ensuring uniform composition from lot to lot.

Typical Application Areas

Mn75-C2.0 Medium Carbon Ferro Manganese is essential in many critical metallurgical processes:

HSLA Steels: Used in combination with niobium, vanadium, or titanium to achieve high strength with good weldability (e.g., ASTM A572, A656).
Medium-Carbon Alloy Steels: Alloying element in 4140, 4340, and similar grades where carbon is already specified and additional carbon from alloy addition must be minimized.
Spring Steels: Provides manganese for hardenability without disrupting the carefully controlled carbon content (0.5-0.7% C).
High-Quality Castings: Used in steel castings and ductile iron where consistent properties are required.
Welding Consumables: As a core ingredient in flux-cored wires and electrode coatings for low-hydrogen applications.

For specific application guidance or custom formulations, contact our technical team for personalized recommendations based on your production requirements.

Technical Specifications – High & Medium Carbon Ferro Manganese Grades

Our Ferro Manganese is produced to meet international standards with strict quality control. Below is the chemical composition of our primary grade Mn75-C2.0 compared with other common industrial grades for reference.

Chemical Composition (Typical Values, % by weight)

Grade / Designation	Mn (%)	C (%)	Si (%)	P (%)	S (%)	Typical Application
Mn75-C2.0	75-78	≤2.0	≤1.8	≤0.18	≤0.02	HSLA, medium-carbon steel, specialty castings
Mn65-C7.0	65-70	≤7.0	≤2.0	≤0.20	≤0.03	Carbon steel, general deoxidation
Mn70-C7.5	70-73	≤7.5	≤2.0	≤0.20	≤0.03	Structural steel, low-alloy steel
Mn75-C8.0	75-78	≤8.0	≤1.5	≤0.2	≤0.02	Carbon steel, cost-sensitive applications
Mn78-C1.5	78-81	≤1.5	≤1.5	≤0.15	≤0.02	Specialty steel, low-carbon requirements
Mn80-C0.7	80-83	≤0.7	≤1.2	≤0.12	≤0.015	High-purity, stainless steel, refined alloys

Physical Properties (Typical for Mn75-C2.0)

Property	Value	Unit
Melting Range	1180-1320	°C
Density (at 20°C)	7.2-7.5	g/cm³
Appearance	Silvery-gray metallic lumps / granules	-
Bulk Density (lumps)	3.6-4.1	g/cm³

Available Sizes

Lumps: 10-80mm, 20-100mm, 50-150mm (standard), custom sizes available
Granules: 2-15mm, 1-8mm
Powder: 0-2mm, 0-10mm, -100 mesh, -200 mesh
Custom Sizes: Available upon request to meet specific process requirements (e.g., cored wire)

Application Guidelines – Medium Carbon Ferro Manganese Mn75-C2.0

Medium Carbon Ferro Manganese grade Mn75-C2.0 is a precision alloy with the following primary applications:

HSLA & Microalloyed Steels

In high-strength low-alloy steels, manganese (typically 1.0-1.8%) improves strength and toughness. Mn75-C2.0 allows addition of high manganese without exceeding carbon specifications, which is critical for weldability and formability. Commonly used in pipeline steels, automotive beams, and structural tubing.

Medium-Carbon Alloy Steels

For grades like AISI 4140 (0.38-0.43% C, 0.75-1.0% Mn) or 4340, the carbon content is already at the target level. Using low-carbon manganese alloy (C≤2.0%) prevents exceeding the maximum carbon limit while achieving the required manganese. This ensures consistent hardenability and mechanical properties.

Spring Steels & Wear-Resistant Grades

Spring steels (e.g., 5160, 9260) rely on precise carbon and manganese balances. Mn75-C2.0 provides manganese without disturbing the carefully controlled carbon content (0.5-0.7% C).

High-Quality Castings & Forging Ingots

In steel castings for critical applications (mining, railway, heavy equipment), manganese improves strength and wear resistance. The low carbon nature of Mn75-C2.0 allows flexibility in final carbon adjustment.

Welding Consumables

As a key component in flux-cored wires and coated electrodes, Mn75-C2.0 delivers manganese to the weld pool without introducing excessive carbon, which could lead to carbide precipitation or reduced toughness in multi-pass welds.

Packaging & Logistics – Medium Carbon Ferro Manganese Mn75-C2.0

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, welding consumable manufacturers).
Custom Packaging: We can accommodate special packaging requests, including moisture-proof liners, steel drums, or bulk bags with discharge spouts.

Logistics Information

Parameter	Details
Minimum Order Quantity	20 metric tons (trial orders possible for 5-10 tons subject to availability)
Lead Time	15-25 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 – Medium Carbon Ferro Manganese Mn75-C2.0

Why choose Mn75-C2.0 over high-carbon grades like Mn65 or Mn70? +

Mn75-C2.0 offers two key advantages: higher manganese content (75-78%) and significantly lower carbon (≤2.0%). This allows steelmakers to add manganese to grades with strict carbon limits (e.g., medium-carbon alloy steels, HSLA) without exceeding the carbon specification. It also reduces the total alloy volume needed, improving yield and reducing slag.

Can Mn75-C2.0 be used for stainless steel production? +

For most stainless steels, carbon must be extremely low (≤0.03% in many cases). While Mn75-C2.0 is lower in carbon than high-carbon grades, it may still introduce too much carbon for austenitic or ferritic stainless steels. For those applications, we recommend our low-carbon grades Mn78-C1.5 or Mn80-C0.7. However, Mn75-C2.0 can be suitable for certain 200-series stainless grades where carbon up to 0.1% is permitted. Please consult our technical team.

Is it possible to entrust a third-party inspection to check the quality before shipment? +

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 size is best for ladle trim additions? +

For precise trim additions in the ladle, we recommend granules in the range of 2-15mm or 1-8mm to ensure rapid dissolution and avoid segregation. For bulk additions during tapping, lumps (10-80mm) are typical. We can customize sizing to match your alloy addition system.

Do you provide a certificate of analysis with each shipment? +

Absolutely. Every batch of Ferro Manganese Mn75-C2.0 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 medium carbon ferro manganese? +

We have an annual production capacity exceeding 30,000 metric tons of medium and low-carbon ferro manganese across grades Mn75-C2.0, Mn78-C1.5, and Mn80-C0.7. We maintain dedicated refining lines to ensure consistent low-carbon chemistry and can accommodate both container and bulk shipments.