Industry-Verified Manufacturing Data (2026)

Refractory Lined Ladle

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Refractory Lined Ladle used in the Basic Metal Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Refractory Lined Ladle is characterized by the integration of Steel Shell and Refractory Lining. In industrial production environments, manufacturers listed on CNFX commonly emphasize Steel (shell/structure) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A steel ladle with an interior refractory lining designed to withstand high temperatures and contain molten metal during transfer operations.

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Product Specifications

Technical details and manufacturing context for Refractory Lined Ladle

Definition
A critical component of the Molten Metal Transfer Car system, the Refractory Lined Ladle is a specialized container used to safely transport, hold, and pour molten metals (such as steel, iron, or aluminum) from one location to another within a foundry or steel plant. Its refractory lining protects the steel shell from extreme heat (typically 1400-1700°C) and chemical corrosion from the molten metal, ensuring structural integrity and preventing contamination of the metal.
Working Principle
The ladle is mounted on the transfer car and positioned beneath a furnace or other metal source to receive molten metal. The refractory lining acts as a thermal and chemical barrier, insulating the steel shell. The ladle can be tilted via a mechanical or hydraulic system on the car to pour the metal into molds, tundishes, or other vessels. After emptying, it may be returned for relining or preheating before the next cycle.
Common Materials
Steel (shell/structure), Refractory bricks/castables (lining, e.g., alumina, magnesia, zirconia)
Technical Parameters
  • Capacity - the maximum weight of molten metal the ladle can hold (tonnes) Customizable
Components / BOM
  • Steel Shell
    Provides structural support and contains the refractory lining and molten metal
    Material: Carbon steel or alloy steel
  • Refractory Lining
    Insulates the shell from high temperatures and resists chemical attack from molten metal
    Material: Refractory bricks, castables, or gunning mixes (e.g., alumina, magnesia)
  • Trunnion Pins
    Mounting points on the ladle shell that engage with the transfer car's tilting mechanism
    Material: Forged or cast steel
  • Ladle Cover
    Optional cover to reduce heat loss and prevent slag or contaminants from entering
    Material: Steel with refractory lining
Engineering Reasoning
1550-1650°C molten metal temperature, 0.1-0.3 MPa internal pressure
Refractory lining erosion exceeding 70% of original thickness or refractory spalling exposing steel shell to temperatures above 800°C
Design Rationale: Thermal-mechanical fatigue from cyclic heating/cooling (ΔT=1400°C) combined with chemical corrosion from basic slag (CaO/SiO₂ ratio >2.0) at refractory-metal interface
Risk Mitigation (FMEA)
Trigger Thermal shock from rapid temperature change exceeding 300°C/min during preheating
Mode: Refractory lining crack propagation leading to molten metal penetration
Strategy: Controlled preheating ramp rate (max 150°C/hour) with distributed burner system
Trigger Alkaline slag infiltration (Na₂O+K₂O content >5%) at refractory joints
Mode: Refractory lining structural weakening and premature erosion
Strategy: Monolithic refractory casting with expansion joints designed for 1.2% thermal expansion at 1650°C

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Refractory Lined Ladle.

Ladle Steel Ladle Pouring Ladle refractory lined steel ladle for molten metal high temperature ladle with alumina lining custom capacity refractory ladle for steel plants molten metal transfer ladle with trunnion pins industrial ladle with magnesia refractory lining

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Molten Metal Transfer Car
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 0.5 bar gauge (limited by structural steel shell)
other spec: Max ladle capacity: 5-350 tons molten metal; Refractory thickness: 150-450 mm; Lining life: 50-200 heats
temperature: Up to 1800°C (3272°F) depending on refractory grade
Media Compatibility
✓ Molten steel ✓ Molten iron ✓ Molten copper alloys
Unsuitable: Highly corrosive slags with high fluorine or alkali content
Sizing Data Required
  • Required molten metal capacity (tons)
  • Pouring temperature (°C)
  • Tapping-to-casting cycle time (minutes)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal spalling
Cause: Rapid temperature changes during preheating or operation create thermal stresses that exceed the refractory's strength, causing cracks and material loss.
Chemical corrosion
Cause: Interaction between molten metal/slag and refractory lining, leading to dissolution, penetration, and structural degradation of the refractory material.
Maintenance Indicators
  • Visible cracks, gaps, or missing refractory sections in the lining during inspection
  • Excessive heat radiation from the ladle exterior indicating thinning or failure of the refractory insulation
Engineering Tips
  • Implement controlled preheating and cooling cycles to minimize thermal shock and extend refractory life
  • Regularly monitor and maintain proper slag chemistry and temperature control to reduce chemical attack on the lining

Compliance & Manufacturing Standards

Reference Standards
ISO 10049:2014 - Refractory products for steel ladles ASTM C27-98(2019) - Standard Classification of Fireclay and High-Alumina Refractory Brick EN 1402-1:2003 - Unshaped refractory products - Part 1: Introduction and classification
Manufacturing Precision
  • Ladle shell roundness: +/- 5 mm
  • Refractory lining thickness: +/- 10 mm
Quality Inspection
  • Thermal shock resistance test
  • Refractory lining thickness measurement by ultrasonic testing

Factories Producing Refractory Lined Ladle

Verified manufacturers with capability to produce this product in China

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✓ 95% Supplier Capability Match Found

T Technical Director from Brazil Jan 30, 2026
★★★★★
"The Refractory Lined Ladle we sourced perfectly fits our Basic Metal Manufacturing production line requirements."
Technical Specifications Verified
P Project Engineer from Canada Jan 27, 2026
★★★★☆
"Found 50+ suppliers for Refractory Lined Ladle on CNFX, but this spec remains the most cost-effective. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United States Jan 24, 2026
★★★★★
"The technical documentation for this Refractory Lined Ladle is very thorough, especially regarding Capacity (tonnes)."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

9 sourcing managers are analyzing this specification now. Last inquiry for Refractory Lined Ladle from Poland (1h ago).

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Frequently Asked Questions

What refractory materials are best for lining a molten metal ladle?

Common refractory materials include alumina, magnesia, and zirconia-based bricks or castables, chosen based on the specific molten metal type, temperature, and chemical compatibility requirements.

How is the lining thickness determined for a refractory lined ladle?

Lining thickness is calculated based on factors like ladle capacity, operating temperature, thermal conductivity of the refractory material, and desired heat retention to ensure safety and efficiency during molten metal transfer.

What maintenance is required for a refractory lined ladle?

Regular inspection for lining wear, cracks, or erosion is essential. Damaged sections must be repaired or replaced promptly to prevent shell damage and ensure safe operation. Proper preheating before use is also critical.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Basic Metal Manufacturing sector.

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