Description
ASTM A-269:
Covers several grades of nominal wall thickness, stainless steel tubing for general corrosion resisting and low or high temperature service. The tubing sizes and thickness usually furnished to this specification are 1/4in. inside diameter and larger and .020in. nominal wall thickness and heavier.
ASTM A-213:
Minimum wall thickness, seamless ferritic and austenitic steel boiler and superheater tubes and austenitic steel heat exchanger tubes. The tubing sizes and thickness are usually furnished as 1/8 in. inside diameter to 5 in. outside diameter and .015 to .500 in. inclusive, minimum wall thickness. Other sizes may be furnished provided that such tubes comply with all the other requirements of this specification. Distributor inventories are usually stocked in nominal wall thickness.
Size Range: 1/8in. through 2in.:
