made on a specimen from one end of one length of
pipe representing each heat in each beat-treatment lot.
10.2 Flattening Test-For pipe NPS 14 or less, and
diameter to wall thickness ratios of more than: 7.0, a
flattening test shall be carried out in accordance with
Specification A 530/A 530M. A test shall be carried out on a
specimen taken from one end of each length of pipe.
10.3 Bend Test-"-For pipe larger than NPS 14 or NPS
where diameters to wall thickness ratio is 7.0 or less, a bend
test shall be carried out in accordance with Test Method
E 290. Unless otherwise specified, the test specimens shall be
taken in a transverse direction. The diameter of the pin shall
be 2ht for longitudinal specimens or 11
ht for transverse
specimens, where t is the specimen thickness. The bend test
30 17 27 18 30 20
22 12 20 13 22 14
specimens shall be bent at room temperature through 1800
without cracking. One bend test shall be taken from one end
of each length of pipe.