Dead Burned Magnesite: Grades, Uses, and a Buyer’s Checklist

This material is used as a raw material for magnesia refractory bricks and monolithic refractories. For the Kuanxiang dead burned magnesite product MS-90 to MS-95, the corresponding analysis values are MgO 90%–95% and bulk-density 3.18–3.20 g/cm³. Please treat these values as the analysis for the corresponding product grade and confirm the exact product grade, quantity, application and current technical data before placing an order.

If requesting a quotation, please indicate intended end use, target grade, quantity required, desired chemical composition including impurities, particle size, bulk density, packaging and any specific tests required. This will enable supplier to ensure discussion is relevant to intended Refractory formulation.

How the high purity magnesia route works

The high-purity Kuanxiang magnesia raw material is natural magnesite. After the process of beneficiation & purification, light calcination, fine grinding, briquetting etc., the product is finally calcined in an ultra-high-temperature shaft kiln. The grades specified are DBM-97.5, DBM-97, DBM-96 with a particle size of 0–30 mm.

This sequence outlines a high-purity magnesia route for these products. The firing temperature, mineral composition, porosity, reactivity and test method will vary from grade to grade and even from sample to sample depending on particle size and shape. Reference should always be made to the technical data for the particular grade under review.

How to distinguish dead burned and fused magnesia

As Kuanxiang lists dead burned magnesia and fused magnesia as separate product families when listing grades, it is necessary to confirm the exact grade number, the planned area of application, the grain size, the required quality and the relevant specification which will be used when quoting. Just naming a product is not sufficient for selecting a refractory raw material.

DBM specification fields to confirm

Use the following fields as a quotation checklist:

MS-90 to MS-95 values

The MS Series ranges from MS-90 to MS-95 with a MgO content of 90%–95% and bulk density of 3.18–3.20 g/cm³. These products are used to make magnesia refractory bricks and monolithic refractories.

When comparing quotations against each other note that a number can be a product-range reference, a contractual limit or even an order specific test result. So make sure you retain the original units, symbols and qualification as noted in the inquiry.

Where dead burned magnesite is used

Kuanxiang’s products are for use in steelmaking, including the electric arc furnace, converter, ladle linings and other magnesia-carbon bricks’ raw materials. A list of related products includes fused magnesia, Dead Burned Magnesia, Medium-grade Magnesia, Light-burned magnesia powder and Magnesia-based gunning materials etc., which can be selected according to using conditions, material grades, particle structures and quality etc.

These are downstream processes that produce steel, glass, cement and non-ferrous metals using magnesia and other refractory raw materials. An application does not specify a particular brick formula, does not approve a particular design, and does not guarantee service life.

Information to send before requesting a quotation

Send the following information in one message:

End use: The end use for which the refractory is intended, together with the relevant furnace, kiln, ladle, or repair position.

• Target grade: Indicate the preferred MS grade or the grade to be compared.
• Chemistry: State MgO target and the relevant impurity limits for the formulation.
• Particle structure: Nominal size, grading, max% fines, max% oversized pieces, required sieves.
• Physical and delivery details: State the required bulk density, packaging, labeling, sampling, and paperwork.
• Commercial terms: Customization scope, MOQ, lead time, price and payment terms for custom order confirmation.

Kuanxiang will negotiate with supplier regarding grades and specs for specific end use application. In supply discussion, raw-ore selection, calcination and product processing will be covered. Negotiate the following prior to confirming order customization, MOQ, lead time, price and payment terms for each order: 1. End use 2. Target grade 3. MgO content 4. Impurities’ limits 5. Particle size.

FAQ

What are the MS grades and values?

Current products in the MS range are MS-90 up to MS-95 with MgO content of 90%–95% and bulk density of 3.18–3.20 g/cm³. These are used to make magnesia refractory bricks and monolithic refractories. Please check current product details and order information before placing an order.

Is dead burned magnesite used for refractory bricks?

Yes. Kuanxiang dead burned magnesite can be used in the production of magnesia refractory bricks and monolithic refractories. This indicates an application direction and does not mean a special brick formula or even guarantee successful use in a project.

What should I request besides MgO?

When requesting a quote for Kuanxiang, please provide the following details: intended application, required specification, maximum allowed impurities, required particle size, bulk density, requested packaging, required tests and/or sampling method etc. Please indicate whether each of the above information provided by you is a range for reference only, a contractual limit or specific to the order.

How do I request a matching grade?

Provide Kuanxiang with the end use, target grade, MgO target, impurity limits, particle size or grading, bulk density, packaging, destination, and any testing requirements. The registered company name is Haicheng Kuanxiang Mineral Products Manufacturing Co., Ltd., located in Pailou Town, Haicheng City, Liaoning Province, China.

Conclusion Start with the grade and confirm the order

When selecting a dead burned magnesite for use in refractory applications, first identify the required grade and then check the key parameters that affect the refractory mix. Kuanxiang’s MS-90 to MS-95 grades of dead burned magnesite contain 90%–95% MgO and have a bulk density of 3.18–3.20 g/cm³. The current grade, particle structure, packaging, test basis and commercial terms for the order in question should all be confirmed prior to placing a purchase order.