Ladle Permanent Lining Castable

01 Product Introduction

Ladle Permanent Lining Castable is a high-performance refractory castable designed for use between the insulation layer and the working lining of steel ladles. It serves as the permanent lining of the ladle and is typically installed at a thickness of 30–60 mm on the inner side of the ladle shell.

The steel ladle is a critical vessel connecting steelmaking and continuous casting processes. As the structural backbone of the lining system, the permanent layer plays a vital role in preventing molten steel leakage, maintaining structural stability, and ensuring safe ladle operation.

This product is formulated with optimized graded high-alumina or alumina-magnesia aggregates. Low-impurity micro-expansion agents are incorporated into the matrix, and the maximum aggregate size is carefully adjusted to enhance density, dimensional stability, and service life. The material offers excellent workability, controlled setting time, strong thermal insulation, and superior thermal shock resistance.

02 Technical Specifications

03 Main Applications

Integral casting of ladle permanent lining

Structural support layer inside the ladle shell

Ladle relining and refurbishment projects

Ladles used in continuous casting systems

Functions of the permanent lining:

Structural backbone supporting the working lining

Prevention of molten steel leakage

Improvement of thermal insulation performance

Enhancement of overall ladle safety

Extension of ladle campaign life