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RE: Modulus of Elasticity for Aluminum

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Canada : 70,000MPa (10.2 Mpsi)

Thor A. Tandy P.Eng, C.Eng, Struct.Eng, MIStructE, FEC
Victoria, BC
Canada
Email: vicpeng(--nospam--at)telus.net
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-----Original Message-----
From: seaint-seaosc(--nospam--at)mail-list.com [mailto:seaint-seaosc(--nospam--at)mail-list.com] On 
Behalf Of Michel Blangy Sent: August-23-13 9:38 AM
To: seaint-seaosc(--nospam--at)mail-list.com
Subject: [SEAINT-SEAOSC] Modulus of Elasticity for Aluminum

Somehow it was engrained in my head that the modulus for Aluminum is 
approximately 10 Mpsi, or 1/3 that of steel. Today I came across a batch of 
 extruded 6000 series aluminum that is almost 20. The mill certs say 
everything is hunky dory. My shop guys beg to differ. We typically spec 
this type of material to ASTM B221. What gives? Perhaps I've been a bit 
naive...

Michel Blangy, P.E.
Hermosa Beach, CA

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