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24345 Aluminium

24345 Aluminium is a high-strength, heat-treatable aluminium–copper alloy used for engineering components that require higher mechanical strength, hardness and machinability. It is commonly selected for aircraft components, defence equipment, heavy-duty structures, transportation parts, machine components and precision-engineered assemblies.

The Indian designation 24345 is commonly cross-referenced with Aluminium Alloy 2014, UNS A92014, EN AW-2014 and the older British designation HE15. However, buyers should not treat these grades as automatically interchangeable. The required chemical composition, temper, dimensions and mechanical properties must be confirmed against the purchase specification.

Solitaire Steel & Engineering LLP, based in Khetwadi, Mumbai, India, supplies and exports 24345 aluminium sheets, plates, pipes, bars, coils and other required forms. Material can be supplied in applicable tempers, standards, sizes and finishes according to the buyer’s drawing, application and quantity.

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Technical Specifications of 24345 Aluminium

Physical Properties

Property Typical Value
Density Approximately 2.80 g/cm³
Melting Range Approximately 507°C–638°C
Modulus of Elasticity Approximately 72–73 GPa
Poisson’s Ratio Approximately 0.33
Thermal Expansion Approximately 23 × 10⁻⁶/°C
Electrical Resistivity Approximately 0.049–0.058 µΩ·m

Physical-property values are typical for the corresponding aluminium–copper alloy family and may vary with product form, temper and specification.

Mechanical Properties

Property Typical Value in T6 Condition
Tensile Strength Approximately 440–485 MPa
0.2% Proof Strength Approximately 370–415 MPa
Elongation Approximately 5%–10%
Brinell Hardness Approximately 125–140 HB
Shear Strength Approximately 260–290 MPa
Fatigue Strength Approximately 120–140 MPa

Mechanical properties are temper-, thickness- and product-form-dependent. The purchase order should state the required minimum tensile strength, proof strength, elongation and hardness.

Electrical Properties

Property Typical Value
Electrical Conductivity Approximately 30%–35% IACS
Electrical Resistivity Approximately 0.049–0.058 µΩ·m
Electrical Application Suitability Limited compared with commercially pure aluminium grades

24345 aluminium is generally selected for mechanical strength rather than high electrical conductivity.

Optical Properties

Property Performance
Natural Surface Appearance Silver-grey metallic finish
Polishing Ability Good
Anodising Response Limited for decorative applications
Protective Surface Treatment Recommended where corrosion exposure is expected
Available Finish Mill finish, machined, polished, clad or customer-specific finish

The copper content can affect colour uniformity and decorative anodising results.

Thermal Properties

Property Typical Value
Thermal Conductivity Approximately 120–155 W/m·K
Specific Heat Capacity Approximately 0.88 J/g·K
Melting Range Approximately 507°C–638°C
Thermal Expansion Coefficient Approximately 23 µm/m·K

Processing Properties

Property Performance
Machinability Good to excellent in heat-treated tempers
Cold Formability Limited in higher-strength tempers
Hot Formability Good under controlled conditions
Weldability Limited; specialist procedures may be required
Brazability Generally not preferred
Corrosion Resistance Moderate to low compared with 5xxx and 6xxx alloys
Heat-Treatable Yes
Common Heat Treatment Solution treatment followed by ageing
Surface Protection Cladding, anodising, painting or protective coating may be considered

24345 aluminium should not be selected only because of its high strength. The buyer must also consider corrosion exposure, welding requirements, fatigue loading and the required manufacturing process.

Chemical Composition

Element Composition (%)
Copper (Cu) 3.80%–5.00%
Magnesium (Mg) 0.20%–0.80%
Silicon (Si) 0.50%–1.20%
Manganese (Mn) 0.30%–1.20%
Iron (Fe) 0.70% maximum
Zinc (Zn) 0.20% maximum
Chromium (Cr) 0.30% maximum
Titanium or Other Specified Elements 0.30% maximum
Aluminium (Al) Remainder

Chemical limits must be confirmed against the applicable Indian Standard or approved equivalent specification. International 2014 alloy limits may differ slightly from the Indian 24345 designation.

24345 Aluminium Equivalent Grades

Designation System Commonly Referenced Grade
Indian Designation 24345
Aluminium Association 2014
UNS A92014
European Designation EN AW-2014
ISO Designation AlCu4SiMg
German Material Number 3.1255
Old British Designation HE15
Canadian Designation B26S

This table is a cross-reference guide, not automatic approval for substitution. Buyers must compare the governing standard, chemical composition, temper and mechanical-property requirements.

24345 Aluminium Product Range by Solitaire Steel & Engineering LLP

Product Applicable Standard Available Type Size Availability Common Applications
Sheets Applicable IS, ASTM or EN specification Plain, clad, cold-rolled or heat-treated Standard and customised thicknesses, widths and lengths Aircraft skins, panels, defence parts and formed engineering components
Plates Applicable IS, ASTM or EN specification Hot-rolled, heat-treated, machined or cut-to-size Standard and customised dimensions Structural components, jigs, fixtures, machinery and transportation parts
Pipes Applicable product specification Seamless, extruded or as required Required OD, wall thickness and length Aerospace assemblies, structural systems and engineered equipment
Tubes Applicable product specification Extruded, drawn or seamless Required OD, wall thickness and length Aircraft components, precision assemblies and transportation equipment
Coils Applicable sheet and strip specification Mill finish, slit or heat-treated Required thickness, width and coil quantity Formed components and specialised engineering applications
Wire Coils Applicable wire specification Straightened or coil form Required diameter and coil quantity Fasteners, rivets and specialised components
Round Bars IS 733 or approved equivalent Extruded, drawn, forged or heat-treated Standard and customised diameters and lengths Shafts, bolts, aircraft parts and machined components
Flat Bars IS 733 or approved equivalent Extruded, rolled or cut from plate Required width, thickness and length Structural parts, machine components, supports and precision fabrication
Forgings Applicable forging specification Open-die, closed-die or customer-specific As per approved drawing Highly loaded aerospace, defence and mechanical components
Custom Components As per drawing and approved specification Cut, machined or fabricated Buyer-specified dimensions OEM, defence, transportation and industrial equipment

Product availability depends on the required standard, temper, dimensions, manufacturing route, quantity and inspection requirements.

Applications of 24345 Aluminium

  • Aerospace Components: Used for aircraft structures, frames, fittings, wing components and other highly loaded parts where approved material specifications are required.
  • Defence and Armament Equipment: Suitable for selected defence structures, precision components, fixtures and equipment requiring high strength-to-weight performance.
  • Heavy-Duty Forgings: Used for forged components subjected to mechanical loading, impact or repeated operational stress.
  • Automotive and Transportation: Used for wheels, suspension parts, chassis components, truck frames and specialised transportation equipment.
  • Machine Components: Suitable for gears, shafts, couplings, fixtures, jigs, dies and precision-machined parts.
  • Structural Engineering: Used for high-strength frames, supports and fabricated assemblies where weight reduction is important.
  • Fasteners and Rivets: Used for selected bolts, rivets, pins and fastening components manufactured to the required specification.
  • Precision Engineering: Its good machinability makes it suitable for accurately machined components with controlled dimensional tolerances.

When Should a Buyer Select 24345 Aluminium?

24345 aluminium should be considered when the component requires substantially higher strength and hardness than commercially pure aluminium or general-purpose 6xxx-series alloys. It is particularly suitable for machined, forged or heat-treated components used in demanding engineering applications.

Buyers should confirm the following before selecting this grade:

  • Is 24345 specifically mentioned in the drawing or material specification?
  • Is Aluminium 2014 permitted as an equivalent?
  • Which temper and heat-treatment condition are required?
  • Will the component be welded?
  • Will it operate in a marine, chemical or corrosive environment?
  • Is cladding, anodising, painting or another protective finish required?
  • Are aerospace, defence or third-party inspection documents required?

For highly corrosive or extensively welded applications, another aluminium grade may provide better overall performance.

Information Required for a 24345 Aluminium Quotation

For an accurate technical and commercial quotation, please provide:

  • Required product form
  • 24345 or equivalent-grade designation
  • Applicable IS, ASTM, EN, BS, DIN or customer specification
  • Required temper and heat-treatment condition
  • Thickness, width, length, diameter or wall thickness
  • Required mechanical properties
  • Surface finish or protective coating
  • Cutting, machining or fabrication requirement
  • Drawing with dimensional tolerances
  • Quantity or total weight
  • Material test certificate requirement
  • Third-party inspection requirement
  • Aerospace or defence documentation requirements
  • Delivery location
  • Required delivery schedule

For a quotation for 24345 aluminium sheets, plates, pipes, tubes, coils, bars, forgings or customised components, contact Solitaire Steel & Engineering LLP. Our team will review the grade, standard, temper, dimensions, mechanical-property requirements, quantity and delivery location before confirming availability and pricing.

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For a free quote or to learn more about our range of Aluminium Sheets and Plates, Contact Solitaire Steel & Engineering LLP today. Our team is ready to assist with tailored solutions for all your industrial needs.

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