ASME SA213-2019.pdf
SPECIFICATION FOR SEAMLESS FERRITIC AND AUSTENITIC ALLOY-STEEL BOILER, SUPERHEATER, AND HEAT-EXCHANGER TUBES
1. Scope
1.1 This specification covers seamless ferritic and austenitic
steel boiler, superheater, and heat-exchanger tubes, designated
Grades T5, TP304, etc. These steels are listed in Tables
1 and 2.
1.2 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.
1.3 The tubing sizes and thicknesses usually furnished to
this specification are 1⁄8 in. [3.2 mm] in inside diameter to 5 in.
[127 mm] in outside diameter and 0.015 to 0.500 in. [0.4 to
12.7 mm], inclusive, in minimum wall thickness or, if specified
in the order, average wall thickness. Tubing having other
diameters may be furnished, provided such tubes comply with
all other requirements of this specification.
