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ASTM A106 2006a, flattening test

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sjrfc2

Mechanical
Joined
Aug 10, 2005
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67
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US
Does anyone know why the flattening test in A106 was moved to a supplementary (S3) test in the 2006a version of the spec as opposed to the previous mandatory test?
 
Flattening test may not be necessary for seamless pipe.
Please consider ASTM A53 for comparison.
 
Flattening test gives a good evaluation of the weld area ductility and can occasionally alert you to the presence of bond line defects so seamless carbon steel pipe,A106,doesn't need to be tested.



 
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