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Data Sheets

Aluminium Alloy


AMS 4050 T7451 Plate

A high strength aerospace aluminium alloy with good resistance to stress-corrosion cracking.

Chemical Composition

SAE AMS 4050
Alloy 4050
Chemical Element % Present
Silicon (Si) 0.0 - 0.12
Iron (Fe) 0.0 - 0.15
Copper (Cu) 2.00 - 2.60
Manganese (Mn) 0.0 - 0.10
Magnesium (Mg) 1.90 - 2.60
Chromium (Cr) 0.0 - 0.04
Zinc (Zn) 5.70 - 6.70
Zirconium (Zr) 0.08 - 0.15
Titanium (Ti) 0.0 - 0.06
Other (Each) 0.0 - 0.05
Others (Total) 0.0 - 0.15
Aluminium (Al) Balance

Mechanical Properties

These Mechanical Properties are for AMS 4050 Plate in the T7451 temper

Thickness (mm)Proof Strength (Min)Tensile Strength (Min)Elongation % (Min)
Over 6.3 up to & incl. 514415109
Over 51 up to & incl. 764345038
Over 76 up to & incl. 1024274966
Over 102 up to & incl. 1274214905
Over 127 up to & incl. 1524144834
Over 152 up to & incl. 1784074764
Over 178 up to & incl. 2034004694


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.