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Data Sheets

Aluminium Alloy

Commercial Alloy

4015 - H14 Sheet

Aluminium alloy 4015 is a high quality general purpose alloy featuring good ductility coupled with mechanical strength. A close relation to 3103 AlMn alloy, but with higher Silicon content, this alloy can be welded, anodized* or painted. It should be noted that the anodized finish of alloy 4015 will be much darker and less reflective that on alloys 1050 or 3103 so this is not recommended for decorative applications. Many users now prefer to use alloy 4015 having switched from other alloys such as 1050 and 3103.
The corrosion resistance of alloy 4015 is similar to the 3000 series alloys. Suitable for most applications in mill finish or painted, it is not recommended for use in aggressive environments.

* It should be noted that the anodized finish on alloy 4015 will be much darker and less reflective that on alloys 1050 or 3103 so this is not recommended for decorative applications.

Please note that the mechanicla properties quoted are for H14 temper

Chemical Composition

BS EN 573-3:2009
Alloy 4015
Chemical Element % Present
Iron (Fe) 0.0 - 0.70
Copper (Cu) 0.0 - 0.20
Magnesium (Mg) 0.10 - 0.50
Silicon (Si) 1.40 - 2.20
Zinc (Zn) 0.0 - 0.20
Manganese (Mn) 0.60 - 1.20
Other (Each) 0.0 - 0.05
Others (Total) 0.0 - 0.15
Aluminium (Al) Balance

Alloy Designations



Generic Physical Properties

Physical Property Value
Density 2.72 g/cm³
Melting Point 600 °C
Thermal Expansion 24 x10^-6 /K
Modulus of Elasticity 70 GPa
Thermal Conductivity 150-200 W/m.K
Electrical Resistivity 0.023-0.029 x10^-6 Ω .m

Mechanical Properties

BS EN 485-2:2008
Sheet - 0.2mm to 3.00mm
Mechanical Property Value
Tensile Strength 150 - 200 MPa
Proof Stress 120 Min MPa
Hardness Brinell 50 HB


Suitable for MIG and TIG welding using normal aluminium welding conditions  Recommended welding wire is 4043 (Al Si5)






Corresponds to alloy 3103 in same temper but may not be a direct equivalent: 

Workability – Cold: Very Good

Machinability: Acceptable

Weldability – Gas: Very Good

Weldability – Arc: Very Good

Weldability – Resistance: Good

Brazability: Very Good

Solderability: Very Good


r/t performance dependent upon thickness – Approx figures for H12 r/t min bend radius for 180 degree bend are shown below


0.5-0.8mm: r/t 0.0

0.8-1.5mm: r/t 1.0

1.5-3.0mm: r/t 2.0


This Data is indicative only and as such is not to be relied upon in place of the full specification. In particular, mechanical property requirements vary widely with temper, product and product dimensions. All information is based on our present knowledge and is given in good faith. No liability will be accepted by the Company in respect of any action taken by any third party in reliance thereon.

Please note that the 'Datasheet Update' date shown above is no guarantee of accuracy or whether the datasheet is up to date.

The information provided in this datasheet has been drawn from various recognised sources, including EN Standards, recognised industry references (printed & online) and manufacturers’ data. No guarantee is given that the information is from the latest issue of those sources or about the accuracy of those sources.

Material supplied by the Company may vary significantly from this data, but will conform to all relevant and applicable standards.

As the products detailed may be used for a wide variety of purposes and as the Company has no control over their use; the Company specifically excludes all conditions or warranties expressed or implied by statute or otherwise as to dimensions, properties and/or fitness for any particular purpose, whether expressed or implied.

Advice given by the Company to any third party is given for that party’s assistance only and without liability on the part of the Company. All transactions are subject to the Company’s current Conditions of Sale. The extent of the Company’s liabilities to any customer is clearly set out in those Conditions; a copy of which is available on request.