Slag Pot for Steelmaking

1. Product Overview

Metalore slag pots are key material-handling vessels designed for modern steelmaking operations, particularly for BOF (Basic Oxygen Furnace) steelmaking and continuous casting processes. They are used to safely contain, transport, and dump molten steel slag at temperatures up to 1450–1650°C, forming a vital link between steel refining and downstream slag handling systems.

Backed by extensive experience in metallurgical equipment design and manufacturing, Metalore slag pots are engineered with a focus on high load capacity, thermal shock resistance, and operational safety, ensuring reliable performance from furnace tapping to slag processing lines.

2. Key Advantages & Design Features

2.1 Heavy-Duty Structure for Extreme Conditions

• Optimized structural design
  Finite Element Analysis (FEA) is applied to simulate thermal and mechanical loads, ensuring excellent structural strength and stability under extreme operating conditions while minimizing risks of deformation or cracking.

• Reinforced critical zones
  High-stress areas such as trunnions, rim, and bottom are thickened and strengthened. Trunnions undergo special heat treatment to achieve superior bending and shear strength, ensuring safe lifting and handling.

• Efficient cooling rib layout
  Strategically arranged cooling ribs increase heat dissipation, accelerate cooling cycles, extend service life, and improve on-site working conditions.

2.2 Heat-Resistant Materials with Long Service Life

• Heat-resistant alloy cast steel
  The slag pot body is manufactured from grades such as ZG35Cr24Ni7SiN, ZG40Cr25Ni20, or equivalent high-performance alloys, offering excellent high-temperature strength, oxidation resistance, and thermal fatigue resistance.

• Optional internal lining protection
  For highly corrosive slag conditions, refractory brick lining or castable wear-resistant lining solutions are available to significantly extend vessel service life.

2.3 Process-Oriented Design for Precise Application

BOF Slag Pots

• Enhanced impact resistance at the rim and bottom to withstand high-temperature slag tapping.

• Optimized interfaces for tilting mechanisms to ensure smooth and complete slag discharge when used with slag cars or tilting frames.

Continuous Casting Slag Pots / Tundish-Type Containers

• Designed with greater emphasis on slag flow control and thermal retention to support stable continuous casting operations.

• Improved surface finishing to reduce slag adhesion, making cleaning easier and minimizing disruption to casting schedules.

2.4 Safety-First Engineering

• 100% non-destructive testing
  Each slag pot undergoes full ultrasonic testing (UT) and magnetic particle inspection (MT), with special focus on critical weld areas to ensure internal integrity.

• Precision machining
  Trunnion coaxiality and base flatness are precisely machined to guarantee balanced lifting and stable placement, eliminating potential safety risks.

• Operator-friendly details
  Clear lifting marks, inspection openings, and easy slag removal features are incorporated to support safe operation and efficient maintenance.

3. Main Technical Parameters (Customizable)

• Nominal capacity: 5 m³ – 30 m³ (larger sizes available on request)

• Working temperature: ≤1650°C (short-term exposure to higher temperatures possible)

• Material: ZG35Cr24Ni7SiN, ZG40Cr25Ni20, or equivalent heat-resistant alloy cast steel

• Manufacturing standard: JB/T 6403-2017 Large Heat-Resistant Steel Castings and customer-specific technical requirements

• Load rating: Designed in accordance with national lifting safety regulations, typically ≥3.5 times rated load

• Manufacturing process: Resin sand casting, electric arc furnace melting, full heat treatment (annealing, normalizing & tempering)

• Delivery condition: Shot blasted, machined, ground, heat-resistant painted, fully inspected before shipment

4. Product Range & Services

• Standard BOF Slag Pot Series
  Suitable for most converter steelmaking slag handling systems.

• Continuous Casting Slag Pot / Tundish Series
  Tailor-made for continuous casting lines with enhanced thermal insulation and slag flow performance.

• Slag Pans / Small Slag Pots
  Designed for intermittent slag handling or specific workstations, offering flexibility and ease of use.

Full Lifecycle Support

• Process evaluation & selection
  Engineering assessment of operating conditions to recommend optimal capacity and material grades.

• Custom design & manufacturing
  Integrated design based on existing slag cars, tilting frames, and crane parameters.

• After-sales support
  Installation guidance, operational training, and long-term service tracking to ensure stable operation.

5. Why Choose Metalore Slag Pots?

We understand the demanding nature of steel production. Choosing Metalore means:

• Longer service life
  Optimized materials and structural design reduce refractory and replacement costs per ton of steel.

• Higher safety standards
  Strict quality control from design to delivery ensures safe and reliable operation.

• Reduced downtime
  Proven durability supports continuous production and minimizes unplanned maintenance.

• Lower total cost of ownership
  While focused on long-term value, our slag pots deliver significant cost savings through durability and low failure rates.