This specification covers seamless ferritic and austenitic steel boiler, superheater, and heat-exchanger tubes, designated grades T5, TP304, etc. Which is listed in tables 1 and 2.

The size range for this tube is from internal diameter 1/8 inch and up to 5 inch OD. Thickness from 0.015 to 0.500 inch (0.4 mm to 12.7 mm). Also if for other size required, it could be specified in the order, also should be stated with minimum and average thickness.

ASTM A213 Tube have various grades for alloy pipe and stainless pipe

For ASTM A213 low alloy steel tube including the grades ASTM A213 T2, T5, T5b, T5c, T9, T11, T12, T17, T21, T22, T23, T24, T36, and ASTM A213 T91, ASTM A213 T92, T122, T911, and covers the Austenitic and Ferritic stainless steel, in ASTM A213 TP201, TP202, XM-19, TP304, TP304L, TP304H, TP304N, TP304LN, TP309S, TP309H, TP309LMoN, TP309Cb, TP309Hcb, TP310S, TP310H, and TP316, TP316L, TP316H, TP316Ti, TP316N, TP316LN, TP317, TP317L, TP321, TP321H, and etc. For more grades please review the standard of ASTM A213. These are applied at the high-temperature environment, for example to used at over heat exchanger and re-heat exchanger.