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-249:
Covers nominal wall thickness welded tubes made from austenitic stainless steel intended for use such as boiler, superheater, heat exchanger, or condenser tubes. The tubing sizes and thicknesses usually furnished are 1/8 in. in inside diameter to 5 in. in outside diameter and .015 to .320 in. inclusive in wall thickness. Tubing having other dimensions may be furnished provided such tubes comply with all of the requirements of this specification.
Size Range: 3/16 in. through 8 in.
