18Nb - GB 1591-1988

Grade	18Nb
Corresponding Standard	GB 1591-1988 Low Alloy Structural Steels
Classification	Alloy Steel

18Nb Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Nb
Minimum Value	0.14	0.17	0.4	-	-	-	-	-	0.02
Maximum Value	0.22	0.37	0.8	0.045	0.045	0.3	0.3	0.3	0.05

New and Old Grade Replacement List

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