ASTM A403 / A403M UNS S31603

Chemical Properties

CarbonB	ManganeseB	PhosphorusB	SulfurB	SiliconB	Nickel	Chromium	Molybdenum

Note B: Maximum, unless otherwise indicated. Note E: For small diameter or thin walls, or both, where many drawing passes are required, a carbon maximum of 0.040 % is necessary in grades TP304L and TP316L. Small outside diameter tubes are defined as those less than 0.500 in. [12.7 mm] in outside diameter and light wall tubes as those less than 0.049 in. [1.24 mm] in average wall thickness. Note F: On pierced tubing, the nickel may be 11.0–16.0 %.

Mechanical Properties

Tensile strength, min ksi [MPa]	Yield strength, min, ksi [MPa] (0.2 % offset)	Elongation
		Standard round specimen, min % in 4 D
		Longitudinal	Transverse