Ferro Manganese Price Today
Live Ferro Manganese rates — custom grades with stock of High, Medium and Low Carbon Ferro Manganese.
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View Metalsbuy SiMn Index →Ferro Manganese Overview
Ferro Manganese is an alloy composed of iron and manganese. It acts as a strength booster for metals, enhancing their toughness and resilience. With a typical composition of 70-80% Manganese and 20-30% Iron, it brings strength to the material.
In the melt it does three things. It deoxidises, it binds sulphur into the slag so the finished steel is not left brittle at rolling temperature, and the manganese that stays behind raises strength, hardness and hardenability. Practically every commercial steel contains some manganese, which is why Ferro Manganese and Silico Manganese together account for the bulk of ferro alloy consumption worldwide.
The grade you need is decided by the carbon you can afford, not by the manganese alone. High Carbon Ferro Manganese carries 6-8% carbon and is the cheapest source of manganese per tonne — the right choice for rebar and general carbon steel where a little extra carbon does no harm. Medium Carbon drops to 1-2%, and Low Carbon to as little as 0.1-0.7%, for stainless, tool and low-carbon structural grades where carbon would ruin the specification. The low-carbon grades cost more because they are refined further, not because they contain more manganese.
High Carbon Ferro Manganese is made by reducing manganese ore with coke, either in a blast furnace or a submerged arc furnace. The medium and low carbon grades take an extra step — usually silicothermic refining, where silicon from Silico Manganese strips the carbon out. That extra processing is what separates their price, and it is also why low-carbon supply is tighter and lead times longer.
We supply all custom grades of Ferro Manganese, with readily available stocks of High Carbon, Medium Carbon and Low Carbon Ferro Manganese.
Grades & Specifications
High Carbon Ferro Manganese
| Specs | Condition | I | II | III | IV |
|---|---|---|---|---|---|
| Mn | Min | 65%-70% | 70%-75% | 75%-80% | 78%-83% |
| Si | Max | 1.5%-2% | 1.5%-2% | 1.5%-2% | 1.5%-2% |
| C | Max | 6%-8% | 6%-8% | 6%-8% | 6%-8% |
| S | Max | 0.05% | 0.05% | 0.05% | 0.05% |
| P | Max | 0.1%-0.40% | 0.1%-0.40% | 0.1%-0.40% | 0.1%-0.40% |
| Size | 10-150 mm / or as per customer choice | 10-150 mm / or as per customer choice | 10-150 mm / or as per customer choice | 10-150 mm / or as per customer choice |
Medium Carbon Ferro Manganese
| Specs | Condition | Grade 1 | Grade 2 | Grade 3 | Grade 4 |
|---|---|---|---|---|---|
| Mn | Min | 70% | 75% | 78% | 80% |
| C | Max | 1%-2% | 1%-2% | 1%-2% | 1%-2% |
| Si | Max | 1%-2% | 1%-2% | 1%-2% | 1%-2% |
| P | Max | 0.25% | 0.25% | 0.25% | 0.25% |
| S | Max | 0.05% | 0.05% | 0.05% | 0.05% |
Low Carbon Ferro Manganese
| Specs | Condition | I | II | III |
|---|---|---|---|---|
| Mn | Min | 70%-75% | 75%-80% | 80%-85% |
| Carbon | Max | 0.1%-0.7% | 0.1%-0.7% | 0.1%-0.7% |
| Silicon | Max | 1%-3% | 1%-3% | 1%-3% |
| P | Max | 0.25% | 0.25% | 0.25% |
| S | Max | 0.03% | 0.03% | 0.03% |
Applications & End Uses
- Deoxidiser and desulphuriser in liquid steel
- Manganese addition for strength, hardness and hardenability
- TMT rebar and structural carbon steel (High Carbon grade)
- Stainless, tool and low-carbon structural steels (Medium and Low Carbon grades)
- Welding electrode and flux manufacture
- Manganese steels for wear-resistant castings — crusher jaws, liners, rail crossings
- Foundry melts where sulphur has to be controlled without adding silicon
Buying Ferro Manganese: What to Check
Pick the carbon grade before anything else
High Carbon at 6-8% C is the cheapest manganese you can buy, and it is the wrong purchase if you are making a low-carbon grade. Medium Carbon (1-2%) and Low Carbon (0.1-0.7%) cost more because they are refined further. Decide from your steel specification, then compare prices only within that grade.
Compare per unit of contained manganese
Our High Carbon grades run from 65% Mn up to 83%. A higher-Mn lot at a higher rate is often cheaper in use, because you add fewer kilograms and pay freight on less iron. Divide the landed rate by the guaranteed manganese before choosing.
Check phosphorus, not just manganese
Phosphorus can run to 0.4% in High Carbon grades. It cannot be refined out downstream and it embrittles the finished steel, so if your specification is tight on P, say so at the enquiry stage rather than discovering it in the ladle analysis.
Plan lead time for Low Carbon grades
Low Carbon Ferro Manganese needs a second refining step, so supply is thinner and lead times are longer than High Carbon. Do not assume the same availability across the three grades when you schedule a heat.
Agree the size and the fines allowance
10-150 mm is the standard lump range and can be cut to requirement. Fines oxidise faster in the charge and recovery falls, so fix the acceptable percentage in the order rather than at delivery.
Ferro Manganese — Frequently Asked Questions
What is Ferro Manganese used for?
It is added to liquid steel to remove oxygen, bind sulphur into the slag and leave manganese behind in the metal, which raises strength, hardness and hardenability. Nearly every commercial steel contains manganese, which makes it one of the two most consumed ferro alloys.
What is the difference between High, Medium and Low Carbon Ferro Manganese?
The carbon content, and therefore the price. High Carbon carries 6-8% C and is the cheapest source of manganese. Medium Carbon is 1-2%, Low Carbon as little as 0.1-0.7%. The low-carbon grades are refined further, so they cost more and are used where the steel specification limits carbon.
Ferro Manganese or Silico Manganese — which should I use?
Silico Manganese supplies silicon and manganese in a single addition and suits most carbon and low-alloy steelmaking. Ferro Manganese is the choice when you want manganese without adding silicon, or when you need a carbon level that Silico Manganese cannot give you.
How much manganese does Ferro Manganese contain?
Our High Carbon grades run from a minimum of 65% up to 83% Mn, Medium Carbon from 70% to 80%, and Low Carbon from 70% to 85%. The guaranteed minimum is what should be used when comparing offers.
Why is Low Carbon Ferro Manganese so much more expensive?
Because of the extra processing. High Carbon comes straight out of a carbothermic reduction. Getting carbon down to 0.1-0.7% needs a further silicothermic refining step, which costs energy and materials and reduces yield.
Does phosphorus in Ferro Manganese matter?
Yes. It can reach 0.4% in High Carbon grades, it cannot be removed later, and it makes the finished steel brittle. If your grade is phosphorus-sensitive, specify the limit in the enquiry rather than assuming a standard.
What size is Ferro Manganese supplied in?
The standard lump size is 10-150 mm, or as per customer requirement. Agreeing the allowable proportion of fines in advance avoids disputes on delivery and protects your recovery in the furnace.
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