S21904 - ASTM A240/A240M-2020

USA UNS	S21904
ASTM Specification or Grade	XM-11
Corresponding Standard	ASTM A240/A240M-2020 Chromium and Chromium-Nickel Stainless Steel Plate, Sheet and Strip for Pressure Vessels and General Applications
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	N
Minimum Value	-	-	8	-	-	19	5.5	0.15
Maximum Value	0.04	0.75	10	0.06	0.03	21.5	7.5	0.4

Mechanical Properties

	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Sheet and Strip	≥690	≥415	≥40	≤241
Plate	≥620	≥345	≥45	≤241

Note: The data is for reference only! If you have any questions, please fill out "I want to correct it"!