Special castable for arc furnace cap
Application Industry: Steel Industry and Iron Making Industry
Application Equipment: Electric Arc Furnace (EAF) Cap, Large Ladle Furnace (LF) Refining Furnace Triangle Area, and Same Condition Parts
Size: Custom special castable for arc furnace cap geometry per electric arc furnace cap design and ladle furnace LF triangle area design (free engineering on request)
Products Overview
Our Special castable for arc furnace cap is a high-performance refractory castable engineered for electric arc furnace cap, large ladle furnace LF refining furnace triangle area, and same condition parts service. Per customer-provided data, the product is composed of high alumina bauxite, fused corundum, ultrafine powder, and various additives. The product family has the characteristics of reasonable raw material composition, high refractoriness, good thermal shock resistance stability, and long service life. The product family is applicable to the triangle area of large LF refining furnace and the same conditions parts of electric arc furnace cap service in steel industry and iron making industry.
Per customer-provided data, the Special castable for arc furnace cap product family is offered in four engineering-proven chemistry grades. The DLD75 grade features Al2O3 content minimum 75%, Bulk Density minimum 2.6 g/cm³, Flexural Strength minimum 8 MPa, Compressive Strength minimum 60 MPa, Line Rate of Change -0.1% to 0.3% at 1100 °C for 3 hours, and Max Service Temperature 1450 °C. The DLD80 grade features Al2O3 content minimum 80%, Bulk Density minimum 2.8 g/cm³, Flexural Strength minimum 10 MPa, Compressive Strength minimum 80 MPa, Line Rate of Change -0.1% to 0.3% at 1100 °C for 3 hours, and Max Service Temperature 1550 °C. The DLD90 grade features Al2O3 content minimum 90%, Bulk Density minimum 3.0 g/cm³, Flexural Strength minimum 13 MPa, Compressive Strength minimum 100 MPa, Line Rate of Change -0.2% at 1100 °C for 3 hours and -0.2% to 0.6% at 1500 °C for 3 hours, and Max Service Temperature 1610 °C. The DLD92 grade features Al2O3 content minimum 92%, Bulk Density minimum 3.1 g/cm³, Flexural Strength minimum 8 MPa, Compressive Strength minimum 80 MPa, Line Rate of Change +0.2% at 1100 °C for 3 hours and +0.5% at 1500 °C for 3 hours, and Max Service Temperature 1700 °C.
Per customer-provided data, the product family is manufactured by Zhengzhou caihua with high alumina bauxite as the main raw material supplemented with special additives, after high pressure molding and high temperature firing. The product family has the advantages of reasonable raw material composition, high refractoriness, good thermal shock resistance stability, and long service life, with stable quality and good engineering performance across the global steel industry value chain. Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Special castable for arc furnace cap grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for Steel Industry category, or contact our technical sales team for a free consultation against your electric arc furnace cap design.
Product Features
Features:
- Manufactured by Zhengzhou caihua as special castable for arc furnace cap composed of high alumina bauxite, fused corundum, ultrafine powder, and various additives per customer-provided data
- Engineering-proven characterized with reasonable raw material composition, high refractoriness, good thermal shock resistance stability, and long service life per customer-provided data
- Multi-grade chemistry series DLD75, DLD80, DLD90, DLD92 covering Al2O3 content 75%-92% and Max Service Temperature 1450-1700 °C per customer-provided data
- Per customer-provided data, applicable to the triangle area of large LF refining furnace and the same conditions parts of electric furnace cap and ladle furnace service
- Bulk Density 2.6-3.1 g/cm³, Flexural Strength 8-13 MPa, Compressive Strength 60-100 MPa, and Line Rate of Change -0.2% to +0.5% per customer-provided data for matching different EAF cap and LF triangle area service conditions
Product Specification
Special castable for arc furnace cap
The refractory castable for electric furnace cap is composed of high alumina bauxite, fused corundum, ultrafine powder and various additives. It has the characteristics of reasonable raw material composition, high refractoriness, good thermal shockresistance stability and long service life. Applicable to the triangle area of large LF refining furnace and the same conditions parts.
| Brands / Items | DLD75 | DLD80 | DLD90 | DLD92 | |
|---|---|---|---|---|---|
| Al2O3 (%) ≥ | 75 | 80 | 90 | 92 | |
| Bulk density (g/cm³) ≥ | 2.6 (110°C, 24h) |
2.8 (110°C, 24h) |
3.0 (110°C, 24h) |
3.1 (110°C, 24h) |
|
| Flexural strength (MPa) ≥ | 8 (110°C, 24h) 8 (1100°C, 3h) |
10 (110°C, 24h) 10 (1100°C, 3h) |
13 (110°C, 24h) 13 (1100°C, 3h) |
8 (110°C, 24h) 8 (1100°C, 3h) |
|
| Compressive strength (MPa) ≥ | 60 (110°C, 24h) 80 (1100°C, 3h) |
80 (110°C, 24h) 100 (1100°C, 3h) |
100 (110°C, 24h) 100 (1100°C, 3h) |
80 (110°C, 24h) 80 (1100°C, 3h) |
|
| Line rate of change (%) | -0.1~0.3 (1100°C, 3h) |
-0.1~0.3 (1100°C, 3h) |
-0.2 (1100°C, 3h) -0.2~0.6 (1500°C, 3h) |
+0.2 (1100°C, 3h) +0.5 (1500°C, 3h) |
|
| Maximum Service temperature (°C) | 1450 | 1550 | 1610 | 1700 | |
Note: Six performance parameters specified per source image: Al2O3, Bulk density, Flexural strength, Compressive strength, Line rate of change, and Maximum Service temperature. Four DLD chemistry grades engineered for special castable for arc furnace cap service. For project-specific chemistry and grade, contact CH Refractories engineering.
Product Applications
Special castable for arc furnace cap is a high-performance refractory castable engineered for electric arc furnace cap, large ladle furnace LF refining furnace triangle area, and same condition parts service. Per customer-provided data, the product is composed of high alumina bauxite, fused corundum, ultrafine powder, and various additives. The product family has the characteristics of reasonable raw material composition, high refractoriness, good thermal shock resistance stability, and long service life, with stable quality and good engineering performance across the global steel industry value chain.
Application Industry: Steel Industry and Iron Making Industry.
Target Equipment: Electric Arc Furnace (EAF) Cap, Large Ladle Furnace (LF) Refining Furnace Triangle Area, and Same Condition Parts of small, medium-size, and large steel mill and iron making plant operations across the global steel industry value chain.
Specific Application Zones: The DLD75 grade is engineered for general electric arc furnace cap and ladle furnace triangle area service with Al2O3 content minimum 75%, Bulk Density minimum 2.6 g/cm³, Flexural Strength minimum 8 MPa, Compressive Strength minimum 60 MPa, Line Rate of Change -0.1% to 0.3% at 1100 °C for 3 hours, and Max Service Temperature 1450 °C. The DLD80 grade is engineered for higher-demand electric arc furnace cap and ladle furnace triangle area service with Al2O3 content minimum 80%, Bulk Density minimum 2.8 g/cm³, Flexural Strength minimum 10 MPa, Compressive Strength minimum 80 MPa, Line Rate of Change -0.1% to 0.3% at 1100 °C for 3 hours, and Max Service Temperature 1550 °C. The DLD90 grade is engineered for high-demand electric arc furnace cap and ladle furnace triangle area service with Al2O3 content minimum 90%, Bulk Density minimum 3.0 g/cm³, Flexural Strength minimum 13 MPa, Compressive Strength minimum 100 MPa, Line Rate of Change -0.2% at 1100 °C for 3 hours and -0.2% to 0.6% at 1500 °C for 3 hours, and Max Service Temperature 1610 °C. The DLD92 grade is engineered for premium electric arc furnace cap and ladle furnace triangle area service with Al2O3 content minimum 92%, Bulk Density minimum 3.1 g/cm³, Flexural Strength minimum 8 MPa, Compressive Strength minimum 80 MPa, Line Rate of Change +0.2% at 1100 °C for 3 hours and +0.5% at 1500 °C for 3 hours, and Max Service Temperature 1700 °C. All four grades serve the triangle area of large LF refining furnace and the same conditions parts of electric furnace cap and ladle furnace service, with stable quality and good engineering performance across the global steel industry value chain.
CH Refractories is a Special castable for arc furnace cap manufacturer in China, Henan, Zhengzhou. The complete Special castable for arc furnace cap 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 Steel Industry and Iron Making Industry customers across the global steel industry value chain.
