[blaster88]

And furthermore: 2.C.1. Aluminium alloys having both of the following characteristics:

a. 'Capable of' an ultimate tensile strength of 460 MPa or more at 293 K (20 °C); and

b. In the form of tubes or cylindrical solid forms (including forgings) with an outside diameter of more than 75 mm.

Technical Note: In Item 2.C.1. the phrase 'capable of' encompasses aluminium alloys before or after heat treatment.

[Marine_Uncle]

Your post #101. I need time to read the downloaded document. Thanks. I am sure this is going to be very interesting reading.