Direct bonded magnesite chrome brick photo 1

Direct bonded magnesite chrome brick

Application Industry: Refractories for Nonferrous Metal Industry

Application Equipment: Nonferrous Metal Copper/Nickel Smelting Furnace, Circulation Tubes, Bottom Grooves, Dipping Tube, Bottom Through, Central Through, Upper Through, and Other Erosion-Serious Parts

Size: Custom direct bonded magnesite chrome brick geometry per nonferrous metal smelting furnace design (free engineering on request)

Consultation：

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Products Overview

Our Direct bonded magnesite chrome brick is a high-performance refractory product engineered for nonferrous metal copper/nickel smelting furnace service. The direct combination of magnesia-chrome brick is a product made of high-purity magnesia and imported chrome concentrate, which is made by adding a small amount of additives and high pressure and high temperature. The product has good high temperature resistance and peeling resistance, and is suitable for high temperature and used in locations where temperature fluctuations are large and high.

The Direct bonded magnesite chrome brick product family is offered in eight engineering-proven CHZMGe chemistry grades. The CHZMGe 20A grade features MgO content minimum 45% and Cr₂O₃ content minimum 30% for high-chrome content nonferrous metal smelting service. The CHZMGe 20B grade features MgO content minimum 40% and Cr₂O₃ content minimum 30% for high-chrome content nonferrous metal smelting service. The CHZMGe 18A grade features MgO content minimum 50% and Cr₂O₃ content minimum 26% for high-demand nonferrous metal smelting service. The CHZMGe 18B grade features MgO content minimum 45% and Cr₂O₃ content minimum 26%. The CHZMGe 16A grade features MgO content minimum 52% and Cr₂O₃ content minimum 24% for high-demand nonferrous metal smelting service. The CHZMGe 16B grade features MgO content minimum 47% and Cr₂O₃ content minimum 24%. The CHZMGe 14A grade features MgO content minimum 60% and Cr₂O₃ content minimum 20% for higher-demand nonferrous metal smelting service. The CHZMGe 14B grade features MgO content minimum 55% and Cr₂O₃ content minimum 20%. All eight grades deliver Bulk Density minimum 3.20 to 3.38 g/cm³ depending on grade, Apparent Porosity maximum 15% to 16% depending on grade, Cold Crushing Strength minimum 50 MPa, and 0.2MPa Refractoriness Under Load minimum 1700 °C.

Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Direct bonded magnesite chrome brick grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for Nonferrous Metal Industry category, or contact our technical sales team for a free consultation against your refractory drawing.

Product Features

Features:

Manufactured from high-purity magnesia and imported chrome concentrate as main raw materials with high pressure and high temperature sintering process
Engineering-proven good high temperature resistance and peeling resistance for nonferrous metal smelting furnace service
Eight CHZMGe chemistry grades covering MgO content 40-65% and Cr₂O₃ content 16-30% for matching different nonferrous metal smelting service requirements
Bulk Density minimum 3.20 to 3.38 g/cm³ with Apparent Porosity maximum 15% to 16% for high density service
0.2MPa Refractoriness Under Load minimum 1700 °C and Cold Crushing Strength minimum 50 MPa for nonferrous metal smelting service

Product Specification

The direct combination of magnesia-chrome brick is a product made of high-purity magnesia and imported chrome concentrate, which is made by adding a small amount of additives and high pressure and high temperature. The product has good high temperature resistance and peeling resistance, and is suitable for high temperature and used in locations where temperature fluctuations are large and high.

Brands / Items	CHZMGe		CHZMGe		CHZMGe		CHZMGe		CHZMGe		CHZMGe
Brands / Items	20A	20B	18A	18B	16A	16B	14A	14B	12A	12B	8A	8B
MgO (%) ≥	45	40	50	45	52	47	60	55	65	60	65	60
Cr₂O₃ (%) ≥	30	30	26	26	24	24	20	20	16	16	16	16
Fe₂O₃ (%)	8-15	8-15	7-15	7-13	6-13	6-13	5-13	5-13	5-12	5-12	5-12	5-12
SiO₂ (%) ≤	1.5	2.5	1.5	2.5	1.5	2.5	1.5	2.5	1.5	2.5	1.5	2.5
Apparent porosity A.P (%) ≤	15	16	15	16	15	16	15	16	15	16	15	16
Bulk density BD (g/cm³) ≥	3.38	3.38	3.33	3.33	3.30	3.30	3.25	3.25	3.20	3.20	3.20	3.20
Compressive strength CCS (MPa) ≥	50	50	50	50	50	50	50	50	50	50	50	50
0.2MPa load softening temperature R.U.L (°C) T0.6 ≥	1700	1700	1700	1700	1700	1700	1700	1700	1700	1700	1700	1700

Note: Eight performance parameters specified: MgO content, Cr₂O₃ content, Fe₂O₃ content, SiO₂ content, Apparent porosity, Bulk density, Compressive strength, and 0.2MPa load softening temperature. Twelve CHZMGe chemistry grades engineered for high temperature resistance and used in locations where temperature fluctuations are large and high. For project-specific chemistry and geometry, contact CH Refractories engineering.

Product Applications

Direct bonded magnesite chrome brick is a high-performance refractory product engineered for nonferrous metal copper/nickel smelting furnace service. The direct combination of magnesia-chrome brick is a product made of high-purity magnesia and imported chrome concentrate, which is made by adding a small amount of additives and high pressure and high temperature. The product has good high temperature resistance and peeling resistance, and is suitable for high temperature and used in locations where temperature fluctuations are large and high.

Application Industry: Refractories for Nonferrous Metal Industry.

Target Equipment: Nonferrous Metal Copper/Nickel Smelting Furnace of small, medium-size, and large nonferrous metal industrial operations.

Specific Application Zones: The CHZMGe 20A grade (MgO content minimum 45%, Cr₂O₃ content minimum 30%) and CHZMGe 20B grade (MgO content minimum 40%, Cr₂O₃ content minimum 30%) are the high-chrome content variants for nonferrous metal smelting furnace service. The CHZMGe 18A and 18B grades feature MgO content minimum 45-50% and Cr₂O₃ content minimum 26% for high-demand nonferrous metal smelting service. The CHZMGe 16A and 16B grades feature MgO content minimum 47-52% and Cr₂O₃ content minimum 24% for high-demand nonferrous metal smelting service. The CHZMGe 14A and 14B grades feature MgO content minimum 55-60% and Cr₂O₃ content minimum 20% for higher-demand nonferrous metal smelting service. All eight grades deliver Bulk Density minimum 3.20 to 3.38 g/cm³ depending on grade, Apparent Porosity maximum 15% to 16% depending on grade, Cold Crushing Strength minimum 50 MPa, and 0.2MPa Refractoriness Under Load minimum 1700 °C. The product family is suitable for circulation tubes, bottom grooves, dipping tube, bottom through, central through, upper through, and other erosion-serious parts.

CH Refractories is a Direct bonded magnesite chrome brick manufacturer in China, Henan, Zhengzhou. The complete Direct bonded magnesite chrome brick product family is manufactured in our Xinmi City, Zhengzhou, Henan, China facility to ASTM, GB/T, and ISO refractory standards. Each batch is supported by free consultation, on-site technical support, and a dedicated engineering team serving Refractories for Nonferrous Metal Industry customers across the global nonferrous metal value chain.

Product FAQ

Q1: What is direct bonded magnesite chrome brick and what are the main applications?

A1: Direct bonded magnesite chrome brick is a high-performance refractory product engineered for nonferrous metal copper/nickel smelting furnace service. The direct combination of magnesia-chrome brick is a product made of high-purity magnesia and imported chrome concentrate, which is made by adding a small amount of additives and high pressure and high temperature. The product has good high temperature resistance and peeling resistance, and is suitable for high temperature and used in locations where temperature fluctuations are large and high.

Q2: How many chemistry grades of direct bonded magnesite chrome brick does CH Refractories offer?

A2: CH Refractories offers eight engineering-proven CHZMGe chemistry grades of Direct bonded magnesite chrome brick. The CHZMGe 20A grade features MgO content minimum 45% and Cr₂O₃ content minimum 30% for high-chrome content nonferrous metal smelting service. The CHZMGe 20B grade features MgO content minimum 40% and Cr₂O₃ content minimum 30% for high-chrome content nonferrous metal smelting service. The CHZMGe 18A grade features MgO content minimum 50% and Cr₂O₃ content minimum 26%. The CHZMGe 18B grade features MgO content minimum 45% and Cr₂O₃ content minimum 26%. The CHZMGe 16A grade features MgO content minimum 52% and Cr₂O₃ content minimum 24%. The CHZMGe 16B grade features MgO content minimum 47% and Cr₂O₃ content minimum 24%. The CHZMGe 14A grade features MgO content minimum 60% and Cr₂O₃ content minimum 20%. The CHZMGe 14B grade features MgO content minimum 55% and Cr₂O₃ content minimum 20%.

Q3: What are the test conditions for direct bonded magnesite chrome brick?

A3: Direct bonded magnesite chrome brick delivers Bulk Density minimum 3.20 to 3.38 g/cm³ depending on grade. Apparent Porosity reaches maximum 15% to 16% depending on grade. Cold Crushing Strength is minimum 50 MPa for all eight grades. 0.2MPa Refractoriness Under Load is minimum 1700 °C for all eight grades. The product family has good high temperature resistance and peeling resistance for nonferrous metal copper/nickel smelting furnace service, suitable for circulation tubes, bottom grooves, dipping tube, bottom through, central through, upper through, and other erosion-serious parts.

Q4: Can the direct bonded magnesite chrome brick be customized to specific nonferrous metal smelting furnace designs?

A4: Yes. CH Refractories offers custom chemistry, grade, and geometry optimization against the buyer's specific nonferrous metal copper/nickel smelting furnace design and operating conditions. CH Refractories engineers can adjust MgO content, Cr₂O₃ content, Fe₂O₃ content, SiO₂ content, raw material formulation, and sintering process to meet specific nonferrous metal smelting furnace service temperature and erosion conditions. Please send the nonferrous metal smelting furnace drawing, lining design, furnace capacity, and operating temperature data to our engineering team in Xinmi City, Zhengzhou, Henan, China for a free consultation, on-site technical support, and a tailored direct bonded magnesite chrome brick formulation proposal with optimized grade selection, raw material adjustment, and geometry design for your specific nonferrous metal smelting furnace service conditions.