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Member

Join Date: Jul 2009
Posts: 5

Alternative Material to SB:L73

04/30/2010 4:25 AM

Hi everyone, I'm supposed to manufacture a part in Alclad L73 (British Standard aluminium alloy), does anyone know an alternative material to it? Does somebody knows where to find its mechanical properties (of L73)? Thanks, PireX

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Pathfinder Tags: alloy aluminium L73 material SB
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Power-User

Join Date: Jun 2008
Posts: 357
Good Answers: 13
#1

Re: Alternative Material to SB:L73

04/30/2010 11:16 PM

L 73 is a BS specification cladded aluminum sheet solutionised and precipitation hardened for aircraft sheet metal component manufacture. 2014 T6 replaces BS L 73. 2024 T3 is also widely used as replacement.

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#2
In reply to #1

Re: Alternative Material to SB:L73

05/03/2010 4:38 AM

Thanks a lot for the reply!! What physical (mechanical/fatigue properties) aspects could convince me to choose between 2024 and 2014? Best regards

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Power-User

Join Date: Jun 2008
Posts: 357
Good Answers: 13
#3
In reply to #2

Re: Alternative Material to SB:L73

05/03/2010 9:47 AM

Hi,

Both 2024 and 2014 are identical in most respects.

I would prefer 2024 as this is most commonly used material and availability is wide spread. Another advantage being 2024 need not be Precipitate hardened to achieve maximum mechanical strength equivalent to BS L73. The material will naturally age in the open atmosphere to attain maximum tensile strength of T6 condition.

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