Radiator Core: Tube Thickness 0.3-0.5mm, Flow Rate 10-100 L/min

Component Specifications

Definition

The radiator core is the primary heat transfer element within a radiator assembly, consisting of tubes and fins that facilitate efficient thermal exchange between hot coolant and ambient air. It functions as a cross-flow heat exchanger where coolant flows through tubes while air passes over finned surfaces, dissipating heat through conduction and convection to maintain optimal operating temperatures in machinery.

Working Principle

Operates on heat transfer principles: conduction through tube walls and fins, and convection as air flows across fin surfaces. Hot coolant transfers thermal energy to tube walls, which conduct heat to fins where forced air convection carries heat away, following the equation Q = U × A × ΔT (heat transfer rate = overall coefficient × area × temperature difference).

Materials

Typically aluminum alloys (3003, 5052) for lightweight corrosion resistance, or copper-brass combinations for high thermal conductivity. Fins: aluminum (0.1-0.3mm thickness). Tubes: aluminum (0.3-0.5mm wall) or copper (0.2-0.4mm). Headers: aluminum casting or plastic composites.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Fin Pitch	1.5-3.0mm
Flow Rate	10-100 L/min
Tube Pitch	8-12mm
Fin Density	8-16 fins per inch
Tube Thickness	0.3-0.5mm
Core Dimensions	Varies by application (typical: 300-800mm width × 200-600mm height × 16-50mm depth)
Pressure Rating	100-300 kPa
Thermal Capacity	5-50 kW depending on size

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 16369, DIN 30676, SAE J1394

Parent Products

This component is used in the following industrial products

Radiator/Fan Assembly

The Radiator/Fan Assembly is a component used in machinery and equipment manufacturing to manage heat in systems that generate significant thermal loads.

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Engineering Analysis

Risks & Mitigation

Thermal fatigue from temperature cycling
Corrosion from coolant contamination
Fin damage from debris impact
Tube blockage from scale buildup
Pressure failure from over-pressurization

FMEA Triads

Trigger: Coolant contamination with chlorides/sulfates
Failure: Pitting corrosion leading to tube perforation
Mitigation: Use inhibited coolants, regular coolant testing, and cathodic protection

Trigger: Thermal cycling stress
Failure: Fatigue cracking at tube-header joints
Mitigation: Design with expansion joints, use flexible connections, control temperature gradients

Trigger: Airflow obstruction
Failure: Reduced heat transfer efficiency causing overheating
Mitigation: Regular cleaning, install protective screens, maintain proper fin spacing

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Tube diameter: ±0.1mm, Fin spacing: ±0.05mm, Flatness: 0.5mm/m, Leak test: 0 bubbles/min at 150kPa

Test Method

Pressure decay test (ISO 16369), Flow resistance test, Thermal performance test (SAE J1394), Salt spray corrosion test (ASTM B117)

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

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Manufacturers of Radiator Core

Manufacturer profiles associated with Radiator Core.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between a radiator core and a complete radiator assembly?

The radiator core is the central heat exchange component containing tubes and fins, while the complete assembly includes additional components like tanks, headers, mounting brackets, and connections.

How do I determine if a radiator core needs replacement?

Signs include visible corrosion or damage to fins/tubes, reduced cooling efficiency (overheating), coolant leaks at core joints, or pressure test failures indicating structural weakness.

Can aluminum and copper radiator cores be used interchangeably?

Not directly - they have different thermal properties, expansion rates, and connection methods. Compatibility depends on system design, coolant type, and connection interfaces.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

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.

Radiator Core