QQ-A-200/3 T3 Bar data sheet

Aluminium Alloy | ASTM & FED-QQ

QQ-A-200/3 T3 Bar

Commercial2024

A high strength alloy with, dependent upon temper, minimum Proof Stress up to 56 ksi / 385 Mpa and minimum Tensile Strength up to 70 ksi / 482 MPa

Chemical Composition

SAE AMS QQ-A-200/3 Alloy QQ-A-200/3
Chemical Element	% Present
Aluminium (Al)	balance
Other (Each)	0.05 max
Chromium (Cr)	0.1 max
Titanium (Ti)	0.15 max
Others (Total)	0.15 max
Zinc (Zn)	0.25 max
Silicon (Si)	0.5 max
Iron (Fe)	0.5 max
Manganese (Mn)	0.3 - 0.9
Magnesium (Mg)	1.2 - 1.8
Copper (Cu)	3.8 - 4.9

Alloy Designations

Aluminium alloy QQ-A-200/3 has similarities to the following standard designations and specifications:

AMS 4164, AMS 4165

Temper Types

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

T3
T8511
T3511

Supplied Forms

Alloy QQ-A-200/3 is supplied as Extruded Bar

Bar
Extrusions

Generic Physical Properties


Physical Property	Value
Density	2.74 g/cm³
Melting Point	640 °C
Thermal Expansion	23.1 x10^-6 /K
Modulus of Elasticity	73 GPa
Thermal Conductivity	121 W/m.K
Electrical Resistivity	30 % IACS

Mechanical Properties

These apply to QQ-A-200/3 bar in the T3 temper

Diameter (mm)	Proof Strength (Min)	Tensile Strength (Min)	Elongation % (Min)
Up to & incl. 6.25mm	290	393	12
Over 6.3mm up to & incl. 19mm	303	414	12
Over 19mm up to & incl. 38mm	317	448	10
Over 38mm	358	483	10

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Last updated 14 January 2019

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 & 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.

Resources

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