QQ-A-225/6 T351 (2024) Bar Grade - Aluminium

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Related Specifications

Aluminium alloy QQ-A-225/6 has similarities to the following standard designations and specifications but may not be a direct equivalent:

AMS 4120
Alloy 2024
UNS A92024

Temper Types

Alloy QQ-A-200/3 is supplied in a wide range of tempers:

T8510
T351
T36
T851
T42
T62
T8511
T4
O
T6

Properties

Chemical Composition

Chemical Element	% Present
Silicon (Si)	0.00 - 0.50
Iron (Fe)	0.00 - 0.50
Copper (Cu)	3.80 - 4.90
Manganese (Mn)	0.30 - 0.90
Chromium (Cr)	0.00 - 0.10
Magnesium (Mg)	1.20 - 1.80
Zinc (Zn)	0.00 - 0.25
Titanium (Ti)	0.00 - 0.15
Titanium + Zirconium (Ti+Zr)	0.00 - 0.20
Other (Each)	0.00 - 0.05
Others (Total)	0.00 - 0.15
Aluminium (Al)	Balance

Mechanical Property	Value
Proof Stress	310 MIN MPa
Tensile Strength	427 Min MPa
Elongation A50 mm	10 Min %

General Physical Properties

Physical Property	Value
Density	2.79 g/cm³
Melting Point	640 °C
Thermal Expansion	23.1 x 10^-6/K
Modulus of Elasticity	73 GPa
Thermal Conductivity	121-150 W/m.K
Electrical Resistivity	30-40 % IACS

Applications

Aerospace components
Defence components
High technology applications

Characteristics

Very good machinability
Excellent when welding using resistance, spot and beam methods. Other welding methods are not recommended
Corrosion resistance to atmospheric attack is poor

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Disclaimer

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 S 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.

Aluminium, ASTM & FED-QQQQ-A-225/6 T351 (2024) Bar

Medium to high strength aerospace aluminium alloy.