This specification covers minimum-wall-thickness,electric-resistance-welded tubes made of carbon steel and carbon-manganese steel intended for use as boiler tubes,boiler flues,superheater flues,and safe ends.
ASME SEC II A SA-178/SA-178M-2013 history
2013ASME SEC II A SA-178/SA-178M-2013 SPECIFICATION FOR ELECTRIC-RESISTANCE-WELDED CARBON STEEL AND CARBON-MANGANESE STEEL BOILER AND SUPERHEATER TUBES
2001ASME SEC II A SA-178/SA-178M-2001 Specification for Electric-Resistance-Welded Carbon Steel and Carbon-Manganese Steel Boiler and Superheater Tubes ASTM A178/A178M-95