ASTM A 249/A 249M-15a Standard Specification for Welded Austenitic Steel Boiler, Superheater, Heat-Exchanger, and Condenser Tubes

Publisher: ASTM
Publish Date: 2015
Pages: 10
Language: English
Format: PDFDocument Scope1.1 This specification covers nominal-wall-thickness
welded tubes and heavily cold worked welded tubes made from
the austenitic steels listed in Table 1, with various grades
intended for such use as boiler, superheater, heat exchanger, or
condenser tubes.
1.2 Grades TP304H, TP309H, TP309HCb, TP310H,
TP310HCb, TP316H, TP321H, TP347H, and TP348H are
modifications of Grades TP304, TP309S, TP309Cb, TP310S,
TP310Cb, TP316, TP321, TP347, and TP348, and are intended
for high-temperature service such as for superheaters and
reheaters.
1.3 The tubing sizes and thicknesses usually furnished to
this specification are 1⁄8 in. [3.2 mm] in inside diameter to 12 in.
[304.8 mm] in outside diameter and 0.015 to 0.320 in. [0.4 to
8.1 mm], inclusive, in wall thickness. Tubing having other
dimensions may be furnished, provided such tubes comply
with all other requirements of this specification.