Fw: [TowerTalk] A Question about Mast Tubeing

[Kurt Andress]

 Steve,
 Here's what I find in my Jorgensen Steel reference book:
 
 ASTM A53, ASTM A106, and API 5L all have the same yield strength
 
 Grade A	Yield = 30000		Grade B	Yield = 35000
 
 This stuff is just as strong as 6063/6061 aluminum. 
 
 73, Kurt
 
 YagiStress - The Ultimate Mechanical Design Software for Yagi's
 Visit - http://freeyellow.com/members3/yagistress
 
 

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