scope:

1.1 This specification provides the requirements which are to supplement and supersede the requirements of ASTM specifications for seamless and electric-resistance-welded carbon steel tubular products suitable for high-temperature service, when these tubular products are to be used in applications conforming to ISO Rules.

1.2 The tubular specifications which may invoke this specification are:

Seamless Carbon Steel Pipe for High-Temperature Service A 106 Electric-Resistance-Welded Carbon Steel Boiler Tubes A 178/A 178M Seamless Carbon Steel Boiler Tubes for High-Pressure Service A 192/A 192M Seamless Medium-Carbon Steel Boiler and Superheater Tubes A 210/A 210M Electric-Resistance-Welded Carbon Steel Boiler and A 226 Superheater Tubes for High-Pressure Service

1.3 The values stated in inch-pound units are to be regarded as the standard.