25-4-4 S44635 - ASTM A959-2019

Grade	25-4-4
USA UNS	S44635
Corresponding Standard	ASTM A959-2019 Specifying Harmonized Standard Grade Compositions for Wrought Stainless Steels
Classification	Ferritic Stainless Steel

25-4-4 Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Mo	N	More
Minimum Value	-	-	-	-	-	24.5	3.5	3.5	-	Ti+Nb: 0.20+4×(C+N) ~ 0.80
Maximum Value	0.025	0.75	1	0.04	0.03	26	4.5	4.5	0.035	Ti+Nb: 0.20+4×(C+N) ~ 0.80

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

25-4-4 Corresponding Standards(Same grade name, different standards)

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