S33550 - ASTM A240/240M-2018

USA UNS	S33550
Corresponding Standard	ASTM A240/240M-2018 Standard Specification for 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	Nb	More
Minimum Value	0.04	-	-	-	-	25	16.5	0.18	0.05	La+Ce:0.025~0.07
Maximum Value	0.1	1	1.5	0.04	0.03	28	20	0.25	0.15	La+Ce:0.025~0.07

Mechanical Properties

condition	Tensile Strength σ_b Mpa	Yield Point σ_s Mpa	Elongation or Extension Rate δ %	Hardness HBW
Thick plates, thin plates, strip products	≥600	≥280	≥35	≤217

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