Hubei Zhongnai New Material Technology Co., Ltd.

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DGL-150 Premium Low Creep High Alumina Bricks - Ultra-High Temperature Performance for Combustion Chambers & Upper Regenerators

DGL-150 Premium Low Creep High Alumina Bricks - Ultra-High Temperature Performance for Combustion Chambers & Upper Regenerators

DGL-150 premium low creep high alumina bricks engineered for extreme temperature applications (1500°C), featuring exceptional creep resistance (≤0.8%), superior bulk density (≥2.7 g/cm³), and outstanding refractoriness (≥1790°C). Optimal for combustion chambers and upper regenerator sections in hot blast stoves.

Key words:

DGL-150

low creep high alumina bricks

combustion chamber refractories

upper regenerator

1500°C service

extreme temperature bricks

75% alumina content

high temperature resistance

industrial furnace lining

blast furnace refractories

Classification:

Refractory materials for metallurgical industry

Refractory brick

High Alumina Brick

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DGL-150 Premium Low Creep High Alumina Bricks

Ultra-High Temperature Performance for Combustion Chambers & Upper Regenerators

≤0.8% Creep Rate 1500°C Service ≥2.7 g/cm³ Density ≥1790°C Refractoriness 75% Al₂O₃ Combustion Chamber

Hubei Zhongnai New Material Technology Co., Ltd.

Ultra-High Temperature Excellence

DGL-150 premium low creep high alumina bricks represent the pinnacle of extreme temperature refractory engineering, specifically designed for the most demanding applications in combustion chambers and upper regenerator sections. With exceptional performance at 1500°C service temperature, these bricks deliver unmatched thermal stability and dimensional integrity.

Ultra-low creep rate: ≤0.8% (1500°C, 50h, 0.2MPa)
Exceptional bulk density: ≥2.7 g/cm³ for superior thermal mass
Outstanding refractoriness: ≥1790°C for extreme temperature capability
Premium alumina content: ≥75% Al₂O₃ for enhanced performance
Superior cold crushing strength: ≥55 MPa for structural integrity

Advanced Metallurgical Engineering

Engineered using premium-grade bauxite and advanced "three-stone" refractory raw materials including kyanite, andalusite, and sillimanite, DGL-150 bricks achieve exceptional creep resistance through optimised mullite phase formation and microstructural control for extreme temperature applications.

Advanced three-stone technology for superior creep resistance
Optimised Fe₂O₃ content: ≤1.2% for enhanced purity
Controlled porosity: ≤22% for optimal thermal properties
Stable mullite phase formation for dimensional stability
Enhanced thermal shock resistance for cyclic operation

Ultra-Premium Technical Specifications - DGL-150 Extreme Performance

Performance Parameter	Unit	DGL-150 Specification	Testing Standard
Apparent Porosity (AP)	%	≤ 22	ASTM C20
Bulk Density (BD)	g/cm³	≥ 2.7	ASTM C20
Creep Rate (1500°C, 50h, 0.2MPa)	%	≤ 0.8 (or 0.6)	ASTM C832
Refractoriness	°C	≥ 1790	ASTM C24
Cold Crushing Strength (CCS)	MPa	≥ 55	ASTM C133
Al₂O₃ Content	%	≥ 75	XRF Analysis
Fe₂O₃ Content	%	≤ 1.2	XRF Analysis
Service Temperature	°C	1500	Continuous Operation
Primary Applications	-	Combustion Chamber	Upper Regenerator Sections
Grade Classification	-	Grade I High Alumina	Premium Performance Category

Extreme Temperature Applications & Critical Performance Zones

DGL-150 premium low creep high alumina bricks are specifically engineered for the most demanding extreme temperature applications where exceptional creep resistance, dimensional stability, and thermal performance are absolutely critical for safe and reliable industrial operation.

Combustion Chamber Construction

Primary application for hot blast stove combustion chambers operating at maximum temperatures up to 1500°C, providing exceptional structural integrity and dimensional stability under extreme thermal and mechanical stress conditions.

Upper Regenerator Systems

Critical performance in upper regenerator sections where maximum temperature exposure and thermal cycling demand superior creep resistance and exceptional dimensional stability for long-term reliable operation.

High-Temperature Industrial Furnaces

Premium solutions for industrial furnaces, kilns, and high-temperature processing equipment operating above 1400°C where conventional refractories cannot provide adequate performance and reliability.

Steel Industry Critical Applications

Specialised applications in steel industry furnaces, electric arc furnace tops, steel ladles, and other extreme temperature steelmaking equipment requiring maximum temperature resistance and structural integrity.

Advanced Material Science & Three-Stone Technology Innovation

Revolutionary Three-Stone Engineering

Advanced incorporation of kyanite, andalusite, and sillimanite creates superior mullite phase formation during firing, resulting in exceptional creep resistance and dimensional stability at extreme temperatures through controlled microstructural development.

Extreme Temperature Performance

Exceptional service capability at 1500°C with ultra-low creep rate (≤0.8%) enables reliable operation in the most demanding high-temperature industrial applications where conventional refractories fail to provide adequate performance.

Premium Alumina Content Excellence

Grade I high alumina composition (≥75% Al₂O₃) combined with exceptional bulk density (≥2.7 g/cm³) provides superior thermal mass, excellent heat storage capacity, and outstanding refractoriness for critical applications.

Extreme Performance Testing & Quality Excellence Standards

Ultra-High Temperature Creep Validation

Rigorous creep testing at 1500°C under 0.2MPa load for 50 hours according to ASTM C832 standards, representing the highest temperature creep testing in the industry for validation of extreme performance capabilities.

Advanced Refractoriness Testing

Comprehensive refractoriness evaluation exceeding 1790°C according to ASTM C24 standards, ensuring reliable performance capability in the most extreme high-temperature industrial applications and environments.

Premium Chemical Composition Control

Precise control of Al₂O₃ content (≥75%) and Fe₂O₃ content (≤1.2%) using advanced XRF analysis and quality control procedures ensuring consistent Grade I performance characteristics and reliability.

Microstructural Excellence Validation

Advanced microstructural analysis using SEM, XRD, and thermal analysis to verify three-stone technology effectiveness and optimise mullite phase formation for superior creep resistance performance.