S20300 - ASTM A959-2019

USA UNS	S20300
ASTM Specification or Grade	XM-1
Corresponding Standard	ASTM A959-2019 Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification	Austenitic Stainless Steel
Properties	Corrosion Resistance Good Machinability

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu
Minimum Value	-	-	5	-	0.18	16	5	1.75
Maximum Value	0.08	1	6.5	0.045	0.35	18	6.5	2.2

• Unless otherwise indicated, a grade designation originally assigned by the American Iron and Steel Institute (AISI).

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