Q550D L05514 - GB /T 16270-2009

Grade	Q550D
China ISC	L05514
Corresponding Standard	GB /T 16270-2009 High Strength Structural Steel Plates in The Quenched and Tempered Condition
Classification	Alloy Steel

Q550D Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr	Ni	Cu	Mo	Ti	V	Nb	B	More
Minimum Value	-	-	-	-	-	-	-	-	-	-	-	-	-	CEV*
Maximum Value	0.2	0.8	1.7	0.025	0.015	1.5	2	0.5	0.7	0.05	0.12	0.06	0.005	CEV*

1 Approximate Comparison Table High strength structural steel plates in the quenched and tempered condition

China	International Organization for Standardization	European Standard
GB	ISO	EN
Q550QD GB/T 16270-2009 Q550D GB/T 16270-1996	E550DD ISO 4950-3-2003	S550Q EN 10025-6-2004

2 Approximate Comparison Table High strength structural steel plates in the quenched and tempered condition

China	International Organization for Standardization
GB	ISO
Q550QD GB/T 34560-4-2017 Q550D GB/T 16270-2009	S550QD ISO 630-4-2012

Q550D 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"!