Precast block for EAF steel pouring spout

Application Industry: Refractories for Steel Industry

Application Equipment: Electric Arc Furnace (EAF) Steel Pouring Spout

Size: Customized precast block geometry per EAF steel pouring spout design (free engineering on request)

Consultation：

Products Overview

Our Precast Block for EAF Steel Pouring Spout is a precast refractory product engineered for Electric Arc Furnace steel pouring spout and tapping spout block service. The product family is manufactured from corundum, mullite, and Al₂O₃-SiC-C based raw materials, offering good erosion resistance, good thermal shock resistance, and long service life under demanding EAF steel pouring cycles.

The Precast Block for EAF Steel Pouring Spout product family is offered in two engineering-proven chemistry grades. The CHDCAMT-80 grade is manufactured as Al₂O₃-SiC-C based assembled brick with bulk density of 2.80 g/cm³ or higher and cold crushing strength 35 MPa or higher. The CHDCY-85 grade is manufactured as mono-cast corundum-mullite based block with Al₂O₃ + MgO content 80 percent or higher, Al₂O₃ content 85 percent or higher, SiC + C content 8 percent or higher, bulk density of 2.80 g/cm³ or higher, and cold crushing strength 40 MPa or higher.

Sourced from our Xinmi City, Zhengzhou, Henan, China facility, each Precast Block for EAF Steel Pouring Spout grade is engineered to ASTM, GB/T, and ISO refractory standards. For an overview of the broader catalogue, see the Refractories for the Steel Industry category, or contact our technical sales team for a free consultation against your refractory drawing.

Product Features

Features:

Manufactured from corundum, mullite, and Al₂O₃-SiC-C based raw materials for precast block and assembled products
Engineering-proven good erosion resistance under demanding EAF steel pouring spout service
Good thermal shock resistance and long service life for EAF steel pouring and tapping cycles
Two product forms: mono-cast tapping spout block and Al₂O₃-SiC-C bricks tapping spout block
Two chemistry grades covering Al₂O₃ content range 80 to 85 percent for matching different EAF tapping duty

Product Specification

Precast block material is engineered per buyer’s EAF steel pouring spout design. Custom geometry and chemistry available on request.

Brands Items	CHDCAMT-80	CHDCY-85
MgO + Al₂O₃ content (%)	≥ 80	—
Al₂O₃ content (%)	—	≥ 85
SiC + C content (%)	≥ 8	—
Bulk Density (g/cm³)	≥ 2.80	≥ 2.80
Cold Crushing Strength (MPa)	≥ 35	≥ 40

Note: The CHDCAMT-80 grade is the assembled Al₂O₃-SiC-C bricks form with chemistry defined by Al₂O₃-SiC-C composition. The CHDCY-85 grade is the mono-cast corundum-mullite form with higher Al₂O₃ + SiC + C composition. For project-specific chemistry, contact CH Refractories engineering.

Product Applications

Precast Block for EAF Steel Pouring Spout is a precast refractory product manufactured from corundum, mullite, and Al₂O₃-SiC-C based raw materials, engineered for Electric Arc Furnace steel pouring spout and tapping spout block service. The product family offers good erosion resistance, good thermal shock resistance, and long service life under demanding EAF steel pouring and tapping cycles.

Application Industry: Refractories for the Steel Industry and the broader Metallurgical Industry.

Target Equipment: Electric Arc Furnace (EAF) Steel Pouring Spout and Tapping Spout Block of small, medium-size, large, HP, and UHP Electric Arc Furnaces.

Specific Application Zones: The CHDCAMT-80 grade serves as Al₂O₃-SiC-C bricks tapping spout block form for EAF steel pouring spout assembly. The CHDCY-85 grade serves as mono-cast tapping spout block form for EAF steel pouring spout with higher Al₂O₃ composition. Both grades deliver bulk density of 2.80 g/cm³ or higher with cold crushing strength of 35 to 40 MPa depending on grade. Both products feature good erosion resistance under steel flow conditions, good thermal shock resistance during heating-cooling cycles, and long service life.

CH Refractories is a Precast Block for EAF Steel Pouring Spout manufacturer in China, Henan, Zhengzhou. The complete Precast Block for EAF Steel Pouring Spout 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 the Steel Industry customers across the global iron and steel value chain.

Product FAQ

Q1: What is precast block for EAF steel pouring spout and what are the main applications?

A1: Precast Block for EAF Steel Pouring Spout is a precast refractory product engineered for Electric Arc Furnace steel pouring spout service. The product family is offered as mono-cast tapping spout block made from corundum and mullite based castable, or as Al₂O₃-SiC-C bricks tapping spout block assembly. The products show good erosion resistance, good thermal shock resistance, and long service life under EAF steel pouring conditions. The product is widely applied for steel pouring spout and tapping spout block service in EAF.

Q2: How many chemistry grades of precast block for EAF steel pouring spout does CH Refractories offer?

A2: CH Refractories offers two chemistry grades of Precast Block for EAF Steel Pouring Spout. The CHDCAMT-80 grade is the Al₂O₃-SiC-C bricks tapping spout block assembly with bulk density of 2.80 g/cm³ or higher and cold crushing strength 35 MPa or higher. The CHDCY-85 grade is the mono-cast tapping spout block with Al₂O₃ plus MgO content 80 percent or higher, Al₂O₃ content 85 percent or higher, SiC + C content 8 percent or higher, bulk density of 2.80 g/cm³ or higher, and cold crushing strength 40 MPa or higher.

Q3: What are the bulk density and cold crushing strength of precast block for EAF steel pouring spout?

A3: Precast Block for EAF Steel Pouring Spout delivers bulk density of 2.80 g/cm³ or higher and cold crushing strength of 35 to 40 MPa depending on grade. The CHDCAMT-80 grade achieves cold crushing strength 35 MPa while the CHDCY-85 grade achieves cold crushing strength 40 MPa. Both grades feature good erosion resistance and good thermal shock resistance for EAF steel pouring spout service.

Q4: Can the precast block for EAF steel pouring spout be customized to specific EAF applications?

A4: Yes. CH Refractories offers custom formulation, geometry, and product form optimization against the buyer's specific EAF capacity, steel pouring spout design, and tapping duty. Please send the EAF tapping spout drawing, 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 precast block formulation proposal.