99.8% Electrolytic Manganese Metal Flake

Our standard 99.8 EMM specification controls manganese purity together with the main residual elements used for batch acceptance. The values below provide the reference specification for Mn99.8 material; the final supplied chemistry should be checked against the batch COA and written order specification.

Mn99.8 Chemical Composition

If your process requires tighter selenium, carbon, silicon or other trace-element limits, send the target values before quotation so we can confirm the available specification.

99.8% EMM Flake Size and Physical Form

• Product form: Irregular electrolytic manganese metal flakes.
• Common size: 1–2 mm flakes.
• Appearance: Silver-gray metallic surface.
• Physical character: Hard and brittle manganese flake.
• Customized size: Other size requirements can be confirmed according to your handling and feeding conditions.

An EMM grade comparison should include both manganese purity and individual impurity limits. Mn99.8 sits between the more common Mn99.7 grade and Mn99.5 material in purity, while providing tighter control of several residual elements.

99.8% vs 99.7% Electrolytic Manganese Flakes

Compared with Mn99.7, Mn99.8 increases the minimum manganese content from 99.7% to 99.8% and provides tighter limits for carbon, sulfur, silicon and selenium in our reference specification.

If your production can operate within Mn99.7 impurity limits, you can also review our 99.7% electrolytic manganese flakes before confirming the final grade.

99.8% vs 99.5% Electrolytic Manganese Flakes

The difference becomes more significant when Mn99.8 is compared with Mn99.5. Mn99.8 provides a higher Mn minimum together with tighter reference limits for C, S, P, Fe, Si and Se.

This can be useful when your final alloy or chemical process has less tolerance for impurity input from the manganese raw material.

How to Choose the Right EMM Grade

• Confirm the minimum Mn content required by your formulation.
• Compare C, S, P, Fe, Si and Se limits rather than Mn purity alone.
• Check whether your process actually requires the tighter Mn99.8 specification.
• Use the batch COA to confirm the supplied chemistry before acceptance.

High Manganese Purity

EMM 99.8 provides Mn 99.8% min, allowing you to introduce manganese with relatively low amounts of other metallic and non-metallic elements compared with lower-purity manganese materials.

Low Impurity Content

For the Mn99.8 reference specification, impurity control includes C, S, P, Fe, Si and Se. This is important when your steel, stainless steel, non-ferrous alloy or chemical process is sensitive to residual-element input.

Flake Uniformity and Batch Consistency

We supply Mn99.8 in controlled flake form and confirm the required chemistry against batch testing. For recurring industrial orders, the written specification and COA provide the reference for comparing one shipment with the next.

99.8% EMM Flakes for Steelmaking

99.8 electrolytic manganese flakes can be used as a high-purity manganese addition in steelmaking when you need to increase Mn content while limiting the additional C, Si, S and other impurities introduced with the raw material.

99.8% EMM for Stainless Steel

In stainless steel production, Mn99.8 can provide controlled manganese input where batch chemistry and residual-element limits need closer attention. The final addition rate should be determined by your steel composition and melting practice.

99.8% Manganese Flakes for Non-Ferrous Alloys

Electrolytic manganese metal flakes can also supply manganese to non-ferrous alloy production. The high Mn content allows manganese addition without introducing the higher iron content associated with iron-based manganese alloys.

Electrolytic Manganese for Chemical Applications

Mn99.8 can also be considered for chemical and industrial processes that require metallic manganese with defined purity and trace-element limits. Send the required chemistry before ordering so we can confirm whether the standard Mn99.8 specification matches your process.

Applications Requiring Tighter Impurity Limits

Mn99.8 is more relevant when the acceptable impurity window is tighter than the standard Mn99.7 specification. In our reference grades, Mn99.8 provides lower maximum limits for several controlled elements.

Processes Sensitive to Carbon, Silicon or Selenium

The difference between Mn99.8 and Mn99.7 is not limited to the 0.1 percentage-point increase in Mn. The reference Mn99.8 grade also reduces C from 0.04% max to 0.02% max, Si from 0.010% max to 0.005% max and Se from 0.10% max to 0.06% max.

When Higher Purity Does Not Necessarily Mean Better Value

If your production specification already accepts Mn99.7 and its impurity limits, moving to Mn99.8 may not provide a practical process advantage. In that case, compare the actual chemistry requirement and total material cost before selecting the higher-purity grade.

Use Mn99.8 when the tighter specification solves a real composition-control requirement, not simply because the grade number is higher.

Electrolytic Manganese Production Process

Electrolytic manganese metal is produced through a hydrometallurgical and electrolytic process. The production route is designed to separate manganese from unwanted impurities before metallic manganese is deposited during electrolysis.

• Solution preparation: Manganese-bearing material is processed into a manganese-containing solution.
• Purification: Impurities are reduced before electrolysis.
• Electrolysis: Metallic manganese is deposited on the cathode.
• Removal and flaking: The deposited manganese is removed and broken into flake form.
• Testing: Finished material is checked against the required chemical specification.
• Packing: Qualified material is packed according to the confirmed order.

From Electrolysis to Manganese Metal Flakes

The deposited manganese is naturally hard and brittle, allowing it to be separated into irregular metallic flakes after electrolysis. Size, surface condition and chemistry are checked before the material is released for industrial supply.

Chemical Composition Testing

For 99.8 EMM quality control, the main acceptance point is not only Mn 99.8% min. We also check the impurity limits included in the confirmed specification.

• Mn purity
• Carbon
• Sulfur
• Phosphorus
• Iron
• Silicon
• Selenium where specified

Batch-to-Batch Composition Consistency

For recurring orders, each shipment should be compared with the same agreed chemical limits. This helps you control manganese input without changing the raw-material specification between production batches.

COA and Batch Inspection

A batch COA can be supplied with your 99.8 electrolytic manganese flakes so you can review the actual chemical results before or with shipment.

Third-Party Inspection

If your purchasing procedure requires independent verification, third-party sampling and inspection can be arranged according to the confirmed order requirements.

Matching Customer-Specified Impurity Limits

If your internal standard is tighter than our standard Mn99.8 specification, send the individual limit for each controlled element before quotation. We will confirm whether the requested chemistry can be supplied before the order is finalized.

Check Mn Purity and Trace Elements

Start with Mn 99.8% min, then compare the limits for C, S, P, Fe, Si and Se against your own raw-material standard.

Review the COA Before Order Confirmation

For orders that require a specific batch result, request the available COA or confirm the testing requirement before shipment. Do not rely only on the commercial name "EMM 99.8".

Confirm Flake Size and Packing

Confirm whether 1–2 mm flakes match your weighing, charging and storage process. Also state whether you need 50 kg bags, steel drums, 1 MT jumbo bags or another agreed packing method.

Compare Supplier Specifications with Your Own Standard

Send us your required chemistry rather than only the grade name. We can compare your specification with the available Mn99.8 material and confirm any differences before quotation.

Packing Options

We support 50 kg bags, 500 kg steel drums, 1 MT jumbo bags and customized export packing according to the confirmed order.

MOQ and Sample

Lead Time and Supply Capacity

For standard orders, shipment is normally arranged within approximately 15 days after receipt of the agreed deposit, subject to specification, quantity, packing and current production schedule.

For recurring bulk supply, send us your monthly requirement and delivery schedule so we can confirm the available production and shipment plan before contract confirmation.

Export Delivery

For export orders, provide your required grade, quantity, packing method, destination port and preferred delivery term. We can prepare the corresponding shipment arrangement and export documents after the order details are confirmed.

If you need current 99.8 EMM price information, send the required quantity and destination so the quotation reflects the actual packing and freight conditions.

For more information about our production, quality control and export supply capability, visit About ZhenAn.