S44400 - ASTM A959-2019

USA UNS	S44400
AISI American Iron and Steel Institute	444
Corresponding Standard	ASTM A959-2019 Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification	Ferritic Stainless Steel

Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	More
Minimum Value	-	-	-	-	-	17.5	-	1.75	-	(Ti+Nb) 0.20+4×(C+N) min, 0.80 max
Maximum Value	0.025	1	1	0.04	0.03	19.5	1	2.5	0.035	(Ti+Nb) 0.20+4×(C+N) min, 0.80 max

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

Approximate Comparison Table

China	Japan	United States		International Organization for Standardization		France	European Standard		Sweden
ISC	JIS	ASTM	UNS	ISO	Numerical Grade	NF EN/NF	EN	Numerical Grade	SS
S11972	SUS 444	444	S44400	X2CrMoTi18-2	4521-444-00-I	Z3CDT18-02	X2CrMoTi18-2	1.4521	2326

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