ASTM A498 Heat-Exchanger Tubes with Integral Fins
ASTM A498/A498M-2014 Standard Specification for Seamless and Welded Carbon Steel Heat-Exchanger Tubes with Integral Fins
1. ASTM A498/A498M-2014 Scope
1.1 This specification covers external helical, integral finned, seamless or welded low-carbon steel tubes for use in tubular heat exchangers, surface condensers, evaporators,
superheaters, and similar heat-transfer apparatus in unfinned end diameters up to 2 in. [50 mm], inclusive.
1.2 Units—This specification is expressed in both inch-pound units and in SI units; however, unless the purchase order or contract specifies the applicable M specification designation (SI units), the inch-pound units shall apply. The values stated in either inch-pound units or SI units are to be regarded separately as standard. Within the text, the SI units are shown in brackets.
The values stated in each system may not be exact equivalents; therefore, each system shall be used independently ofthe other. Combining values from the two systems may result in non- conformance with the standard.
2.1 ASTM Standards: 2
A179/A179M Specification for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes
A214/A214M Specification for Electric-Resistance-Welded Carbon Steel Heat-Exchanger and Condenser Tubes
A334/A334M Specification for Seamless and Welded Carbon and Alloy-Steel Tubes for Low-Temperature Service
3. ASTM A498/A498M-2014 Ordering Information
3.1 The purchaser shall specify in the order the plain-tube specification and the alloy from which the finned tube is to be manufactured.
3.2 The purchaser shall specify in the order the diameter, wall thickness, and length of unfinned sections; root diameter and wall thickness ofthe finned section; number offins per unit length; and the total tube length.