INDUSTRY COMPONENT

Furnace Shell

The furnace shell is the main structural component of an electric arc furnace, providing containment for molten metal and supporting refractory lining.

View Specifications

Component Specifications

Definition
The furnace shell is a cylindrical or spherical steel structure that forms the outer body of an electric arc furnace. It serves as the primary containment vessel for the steelmaking process, housing the molten metal bath, refractory lining, and supporting the roof and electrode systems. Designed to withstand extreme thermal cycling, mechanical stresses, and chemical exposure during steel production cycles.
Working Principle
Provides structural integrity and containment for the steelmaking process. The shell supports refractory materials that insulate against high temperatures (up to 1800°C), contains molten metal, and withstands thermal expansion during heating/cooling cycles. It facilitates tilting for tapping operations and supports auxiliary systems.
Materials
High-temperature steel alloys (typically ASTM A387 Grade 11/22, A516 Grade 70, or equivalent), with thickness ranging from 30-100mm depending on furnace capacity. May include cooling panels or water-cooled sections for thermal management.
Technical Parameters
  • Height 2-6 meters
  • Capacity 30-400 tons
  • Diameter 3-10 meters
  • Tilting Angle Up to 45 degrees
  • Shell Thickness 30-100mm
  • Operating Temperature Up to 1800°C
Standards
ISO 13579, DIN 17100, ASTM A387

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Furnace Shell.

furnace shell EAF shell steelmaking furnace arc furnace components industrial furnace parts metal manufacturing equipment Furnace Shell in Basic Metal Manufacturing

Parent Products

This component is used in the following industrial products

Electric Arc Furnace

A furnace that melts scrap steel or direct reduced iron using an electric arc to produce liquid steel.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Thermal fatigue cracking
  • Refractory failure leading to shell overheating
  • Structural deformation from thermal expansion
  • Corrosion from slag/metal contact
FMEA Triads
Trigger: Thermal cycling stress
Failure: Crack formation in shell structure
Mitigation: Regular thermal stress analysis, proper cooling system maintenance, controlled heating/cooling rates
Trigger: Refractory lining deterioration
Failure: Localized shell overheating and deformation
Mitigation: Regular refractory inspection and replacement, temperature monitoring systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5mm dimensional tolerance, ±2° angular alignment
Test Method
Ultrasonic testing for thickness, radiographic testing for welds, thermal imaging for hot spots

Buyer Feedback

★★★★☆ 4.7 / 5.0 (26 reviews)

"The Furnace Shell we sourced perfectly fits our Basic Metal Manufacturing production line requirements."

"Found 16+ suppliers for Furnace Shell on CNFX, but this spec remains the most cost-effective."

"The technical documentation for this Furnace Shell is very thorough, especially regarding technical reliability."

Related Components

Valve Body
Valve body is the main structural housing of a molten metal flow control valve, designed to withstand extreme temperatures and corrosive environments while directing metal flow.
Refractory Liner
Refractory liner for molten metal flow control valves, providing thermal insulation and erosion resistance in extreme temperature applications.
Rotary Impeller
A high-speed rotating impeller used in molten metal degassing systems to inject inert gases and remove impurities.
Probe Assembly
High-temperature sampling probe for molten metal composition analysis in metallurgical processes

Frequently Asked Questions

What is the primary function of a furnace shell in electric arc furnaces?

The furnace shell provides structural containment for molten metal, supports refractory lining, withstands extreme thermal cycling, and enables tilting operations for tapping molten steel.

What materials are used for furnace shell construction?

High-temperature steel alloys such as ASTM A387 Grade 11/22 or A516 Grade 70, typically 30-100mm thick, sometimes with integrated water-cooling systems.

How does furnace shell design affect steel production efficiency?

Proper shell design minimizes heat loss, reduces refractory wear, enables faster cycling times, and improves safety during tapping operations.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Furnace Shell

Fluxing Agents Glass Formers