Aluminium Alloy - BS-L - L170 T6511 Bar

L170 T6511 Bar

Aluminium alloy L170 – 7075 is a very high strength alloy used for highly stressed components requiring maximum strength with low residual stress.
The standard specifying this grade has been superseded by BSEN 2127.


Chemical Composition

Spec: BS L170(1989)

Alloy L170

Chemical Element % Present
Silicon (Si) 0.0 - 0.40
Iron (Fe) 0.0 - 0.50
Copper (Cu) 1.20 - 2.00
Manganese (Mn) 0.0 - 0.30
Chromium (Cr) 0.18 - 0.28
Magnesium (Mg) 2.10 - 2.90
Zinc (Zn) 5.10 - 6.10
Titanium (Ti) 0.0 - 0.20
Titanium + Zirconium (Ti+Zr) 0.0 - 0.25
Other (Each) 0.0 - 0.05
Others (Total) 0.0 - 0.15
Aluminium (Al) Balance

Properties

Physical PropertyValue
Density 2.81 g/cm³
Melting Point 635 °C
Thermal Expansion 23.5 x10^-6 /K
Modulus of Elasticity 72 GPa
Thermal Conductivity 134-160 W/m.K
Electrical Resistivity 40 % IACS
'Typical' Physical Properties are given

Alloy Designations

Aluminium alloy L160 has similarities to the following standard designations and specifications but may not be a direct equivalent:

7075


Temper Types

The most common temper for L160 – 7075 aluminium is:

  • T6511 - Solution heat treated and stress-relieved by stretching then artificially aged with minor straightening after aging - Equivalent to T4 condition

Supplied Forms

L160 – 7075 aluminium is supplied in Bar and Extruded Sections.

  • Bar
  • Extrusions

Mechanical Properties

These Mechanical properties are for Bar in the T6511 temper

Diameter (mm)Proof Strength (Min)Tensile Strength (Min)Elongation % (Min)
Up to & incl. 104805404
Over 10 up to & incl. 1005205804
Over 100 up to & incl. 1504905504
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Last Datasheet Revision

9 January 2014

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.