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Data Sheets

Aluminium Alloy

Commercial Alloy

4925 - H12 Sheet

Aluminium alloy 4925 is the Pechiney equivalent of Alloy 4015 - A high quality general purpose alloy featuring good ductility coupled with mechanical strength. A close relation to 3103 Al Mn alloy, but with higher Silicon content, this alloy can be welded, anodized* or painted. It should be noted that the anodized finish of alloy 4925 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 4925 having switched from other alloys such as 1050 and 3103.
The corrosion resistance of alloy 4925 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.

Please note that the mechanical properties quoted are for H12 temper - Mechanical Properties for other tempers are shown on page 2.

Chemical Composition

Manufacturer's Data
Chemical Element % Present
Manganese (Mn) 0.60 - 1.20
Iron (Fe) 0.70 max
Copper (Cu) 0.20 max
Magnesium (Mg) 0.10 - 0.50
Silicon (Si) 1.40 - 2.20
Zinc (Zn) 0.20 max
Aluminium (Al) Balance

Alloy Designations

 Aluminim alloy 4925 has similarities to Alloy 4015 but may not be a direct equivalent


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

Mechanical Properties

Manufacturer's Data
Mechanical Property Value
Tensile Strength 135-175 MPa
Elongation A50 mm 4 Min %
Proof Stress 110 min MPa


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.