Q550NH - GB /T 4171-2008

Grade	Q550NH
Corresponding Standard	GB /T 4171-2008 Atmospheric Corrosion Resisting Structural Steel
Classification	Alloy Steel

Q550NH Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S ^*	Cr	Ni ^*	Cu	More
Minimum Value	-	-	-	-	-	0.3	0.12	0.2	Nb+V+Ti≤0.22%
Maximum Value	0.16	0.65	2	0.025	0.03	1.25	0.65	0.55	Nb+V+Ti≤0.22%

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