Structured Manufacturing Data (2026)

Reheating Furnace

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Reheating Furnace 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 Reheating Furnace is characterized by the integration of Burners and Refractory Lining. In industrial production environments, manufacturers listed on CNFX commonly emphasize Refractory lining construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Industrial furnace that reheats steel slabs to optimal rolling temperatures before hot strip rolling.

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Product Specifications

Technical details and manufacturing context for Reheating Furnace

Definition
A critical component within the Integrated Hot Strip Rolling and Finishing System that uniformly reheats cold or semi-finished steel slabs to precise temperatures (typically 1100-1300°C) required for subsequent hot rolling operations, ensuring proper metallurgical properties and surface quality.
Working Principle
Uses combustion of fuels (natural gas, oil) or electric heating to transfer thermal energy to steel slabs through radiation, convection, and conduction, with precise temperature control zones and atmosphere management to prevent oxidation and scale formation.
Common Materials
Refractory lining, Steel casing, Ceramic fiber insulation, Heat-resistant alloy components
Technical Parameters
  • Maximum slab dimensions (width × thickness × length) the furnace can accommodate (mm) Per Request
Components / BOM

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Reheating Furnace.

reheating furnace for steel slabs industrial furnace for hot strip rolling refractory lined reheating furnace waste heat recovery furnace for steel temperature control system for reheating furnaces

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
capacity: 50 to 500 tons per hour (slab throughput)
pressure: Atmospheric to 1.5 bar (combustion system dependent)
temperature: 800°C to 1300°C (typical steel reheating range)
heating rate: 50°C to 150°C per hour (slab dependent)
Media Compatibility
✓ Carbon steel slabs ✓ Alloy steel slabs ✓ Stainless steel slabs
Unsuitable: Aluminum or non-ferrous metals (lower melting points, different oxidation characteristics)
Sizing Data Required
  • Slab dimensions (thickness, width, length)
  • Required production rate (tons/hour)
  • Initial slab temperature (cold charge vs. hot charge)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Refractory Lining Degradation
Cause: Thermal cycling and chemical attack from furnace atmosphere lead to cracking, spalling, and erosion of refractory materials, compromising insulation and structural integrity.
Burner Nozzle Clogging/Corrosion
Cause: Accumulation of combustion byproducts, scale, or fuel impurities obstructs fuel-air flow, causing inefficient combustion, flame instability, and potential overheating of burner components.
Maintenance Indicators
  • Excessive flame impingement on furnace walls or stock, visible as localized overheating or discoloration.
  • Abnormal combustion noises (e.g., popping, rumbling) or irregular flame patterns indicating poor fuel-air mixture or burner malfunction.
Engineering Tips
  • Implement a regular thermal imaging inspection schedule to monitor refractory hot spots and burner performance, enabling proactive repairs before failures escalate.
  • Optimize combustion control systems with precise air-fuel ratio adjustments and install high-efficiency filters in fuel lines to minimize nozzle fouling and corrosion.

Compliance & Manufacturing Standards

Reference Standards
ISO 13579-1:2013 (Industrial furnaces and associated processing equipment - Safety) ANSI Z21.83-2017/CSA 6.29-2017 (Gas-Fired, Heat Processing Appliances) DIN 75201:1994 (Industrial furnaces - Terms and definitions)
Manufacturing Precision
  • Furnace shell flatness: +/- 5 mm per meter
  • Burner alignment: +/- 2 degrees from design axis
Quality Inspection
  • Thermal imaging test for temperature uniformity
  • Pressure decay test for furnace atmosphere integrity

Factories Producing Reheating Furnace

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a reheating furnace in basic metal manufacturing?

A reheating furnace heats steel slabs to precise rolling temperatures (typically 1100-1300°C) before hot strip rolling, ensuring proper metallurgical properties and reducing rolling force.

How does the refractory lining improve reheating furnace performance?

Refractory lining provides thermal insulation, reduces heat loss, withstands extreme temperatures, and protects the steel casing, leading to improved energy efficiency and longer furnace lifespan.

What are the benefits of waste heat recovery in reheating furnaces?

Waste heat recovery systems capture exhaust heat to preheat combustion air or generate steam, reducing fuel consumption by 10-30%, lowering emissions, and improving overall energy efficiency.

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 basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Basic Metal Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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