ASTM A213 Standard covers
seamless ferritic and austenitic
steel boiler, superheater, and
heat-exchanger tubes. Our products for ASTM A213
alloy steel tubes have been
listed as follows:
ASTM A213 T91
ASTM A213 T22
ASTM A213 T12
ASTM A213 T11
ASTM A213 T9
ASTM A213 T5
Grades containing the letter H
in their designation have
requirements different from
those of similar grades not
containing the letter H. These
different requirements provide
higher creep-rupture strength
than normally achievable in
similar grades without these
different requirements. The
tubes shall be made by the
seamless process and shall be
either hot finished or cold
finished, as specified. Grade
TP347HFG shall be cold
finished. Heat treatment shall
be done separately and in
addition to heating for hot
forming. The ferritic alloy and
ferritic stainless steels shall be
reheated. On the other hand, austenitic stainless steel tubes
shall be furnished in the heat-
treated condition.
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