ASTM A213 T5 is the part of ASTM A213 Standard Specification for
Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater,
ASTM A213 T5
ASTM A213 T5 Standard covers seamless ferritic and austenitic steel
boiler, superheater, and heat-exchanger tubes.
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. ASTM A213 T91 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. Alternatively,
immediately after hot forming, while the temperature of the tubes
is not less than the minimum solution temperature, tubes may be
individually quenched in water or rapidly cooled by other means.
Tension test, hardness test, flattening test, and flaring test
shall be done to each tube. Also, each tube shall be subjected to
the nondestructive electric test or hydrostatic test.
ASTM A209 Through A213
Other standard specifications include the categories of A209
seamless carbon-molybdenum alloy-steel boiler and superheater
tubes; A210 seamless medium-carbon steel boiler and superheater
tubes and A213 seamless ferritic and austenitic steel boiler,
superheater and heat-exchanger tubes. Piping wall thicknesses range
from 1/2 inch to 5 inches. A213 grades also have the letter H or M
assigned, which changes the composition and specifications for that
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accurate, complete or up to date.