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(1) If the following conditions prevail, the cold
formed areas of pressure‐retaining components manufactured
of austenitic alloys shall be solution annealed by
heating at the temperatures given in Table UHA-44 for
20 min/in. (20 min/25 mm) of thickness or 10 min,
whichever is greater, followed by rapid cooling:
(-a) the finishing‐forming temperature is below
the minimum heat‐treating temperature given in Table
UHA-44; and
(-b) the design metal temperature and the forming
strains exceed the limits shown in Table UHA-44.
(2) Forming strains shall be determined by the equations
in Table UG-79-1.
以上是标准对成形元件是否热处理的要求,我觉得上述(-a)(-b)是同时满足才需要热处理的,大家有什么看法? |
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