18MnMoNbR A05189 - GB 6654-1996

Grade	18MnMoNbR
China ISC	A05189
Corresponding Standard	GB 6654-1996 Steel Plates for Pressure Vessels
Classification	Alloy Steel

18MnMoNbR Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^①	Ni ^①	Cu ^①	Mo	Nb
Minimum Value	-	0.15	1.2	-	-	-	-	-	0.45	0.025
Maximum Value	0.22	0.5	1.6	0.035	0.03	0.3	0.3	0.3	0.65	0.05

Approximate Comparison Table Steel Plate for Boilers and Pressure Vessels

China	International Organization for Standardization	European Standard
GB	ISO	EN	Numerical Grade
18MnMoNbR	18MnMo4-5	18MnMo4-5	1.5414

18MnMoNbR Corresponding Standards(Same grade name, different standards)

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